Active Proteins

AAA Biotech provides a variety of high-quality recombinant and natural/native proteins that are proven to work in a wide range of experiments. Explore our products to find the active protein that best fits your needs or experimental model.

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Application Data (Measured in a serum-free cell proliferation assay using MCF-7 human breast cancer cells. The ED50 for this effect is typically 0.2-2 ug/mL.)

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Neuregulin-1, Active Protein (Cat# AAA258258)

Full Name

Neuregulin-1 Protein, Canine, Recombinant (ECD, His Tag)

Purity

>90% as determined by SDS-PAGE

Pricing

$325/0.1 mg $625/2x0.1 mg $910/3x0.1 mg $1,180/4x0.1 mg $1,245/5x0.1 mg

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Application Data (Measured by its ability to inhibit mouse CSF induced proliferation of M-NFS-60 mouse myelogenous leukemia lymphoblast cells. The ED50 for this effect is typically 50-250 ng/mL in the presence of 2.5 ng/mL Recombinant Mouse M-CSF.)

Application Data (Measured by its ability to inhibit mouse CSF induced proliferation of M-NFS-60 mouse myelogenous leukemia lymphoblast cells. The ED50 for this effect is typically 50-250 ng/mL in the presence of 2.5 ng/mL Recombinant Mouse M-CSF.)

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CSF1R, Active Protein (Cat# AAA258261)

Full Name

CSF1R Protein, Rat, Recombinant (hFc Tag)

Gene Names

Csf1r; c-fms; mrfms; CSF-1R; CSF-1-R; M-CSF-R

Purity

>95% as determined by SDS-PAGE

Pricing

$435/0.1 mg $850/2x0.1 mg $1,235/3x0.1 mg $1,605/4x0.1 mg $1,755/5x0.1 mg

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Application Data (Immobilized TIGIT Protein, Human, Recombinant (mFc Tag) at 2 ug/ml (100 ul/well) can bind CD155/PVR Protein, Rhesus, Recombinant (His Tag), the EC50 of CD155/PVR Protein, Rhesus, Recombinant (His Tag)is 200-900 ng/mL.)

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CD155/PVR, Active Protein (Cat# AAA258263)

Full Name

CD155/PVR Protein, Rhesus, Recombinant (His Tag)

Purity

>98% as determined by SDS-PAGE

Pricing

$325/0.05 mg $2,310/1 mg $4,500/2x1 mg $6,570/3x1 mg $8,530/4x1 mg $10,195/5x1 mg

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Application Data (Measured in a cell proliferation assay using Balb/c 3T3 mouse embryonic fibroblasts. The ED50 for this effect is typically 60-300 ng/ml.)

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PDGF-C, Active Protein (Cat# AAA258264)

Full Name

PDGF-C Protein, Cynomolgus, Recombinant (hFc Tag)

Purity

>90% as determined by SDS-PAGE

Pricing

$555/0.1 mg $1,070/2x0.1 mg $1,565/3x0.1 mg $2,025/4x0.1 mg $2,280/5x0.1 mg

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Application Data

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COVID 19 Spike RBD(N501Y)-His Coronavirus, Active Protein (Cat# AAA258103)

Full Name

SARS-CoV-2 (2019-nCoV) Spike RBD(N501Y)-His Recombinant Protein

Purity

>95% as determined by SDS-PAGE

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Application Data (Immobilized ACE2 Protein, Human, Recombinant (mFc Tag) at 2 ug/mL (100 uL/well) can bind SARS-CoV-2 (2019-nCoV) Spike RBD (L452R, E484Q) Protein (His Tag), the EC50 of SARS-CoV-2 (2019-nCoV) Spike RBD (L452R, E484Q) Protein (His Tag) is 5.0-30.0 ng/mL.)

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COVID 19 Spike RBD (L452R, E484Q) Protein (His Tag) Coronavirus, Active Protein (Cat# AAA258108)

Full Name

SARS-CoV-2 (2019-nCoV) Spike RBD (L452R, E484Q) Protein (His Tag)

Purity

>95% as determined by SDS-PAGE

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized human ACE2 protein (Fc tag)(10108-H05H) at 2 ug/mL (100 uL/well) can bind SARS-CoV-2 (2019-nCoV) Spike RBD-AVI & His Recombinant Protein, Biotinylated(40592-V27B-B),the EC50 of SARS-CoV-2 (2019-nCoV) Spike RBD-AVI & His Recombinant Protein, Biotinylated (40592-V27B-B) is 17-40 ng/mL.)

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COVID 19 Spike RBD-AVI & His Coronavirus, Active Protein (Cat# AAA258109)

Full Name

SARS-CoV-2 (2019-nCoV) Spike RBD-AVI & His Recombinant Protein, Biotinylated

Purity

>95% as determined by SDS-PAGE

Pricing

$490/0.02 mg $955/2x0.02 mg $1,400/3x0.02 mg $1,815/4x0.02 mg $2,015/5x0.02 mg

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Application Data (Measured by its ability to cleave a peptide substrate, Dabcyl-KTSAVLQSGFRKME-Edans.The specific activity is >5 pmols/min/ug.)

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COVID 19 3CLpro/3C-like protease-His Coronavirus, Active Protein (Cat# AAA258110)

Full Name

SARS-CoV-2 (2019-nCoV) 3CLpro/3C-like protease-His Recombinant Protein

Purity

>95% as determined by SDS-PAGE

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Application Data (Measured by its ability to neutralize Activin-mediated inhibition on MPC11 cell proliferation. The ED50 for this effect is typically 5-25 ng/mL in the presence of 10 ng/mL rhActivin A.)

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FSTL3, Active Protein (Cat# AAA258117)

Full Name

FSTL3 Protein, Mouse, Recombinant (His Tag)

Gene Names

Fstl3; Flrg; E030038F23Rik

Purity

>85% as determined by SDS-PAGE

Pricing

$435/0.05 mg $850/2x0.05 mg $1,235/3x0.05 mg $1,605/4x0.05 mg $1,755/5x0.05 mg

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Application Data (Measured by its ability to neutralize Activin-mediated inhibition on MPC11 cell proliferation. The ED50 for this effect is typically 40-200 ng/mL in the presence of 10 ng/mL rhActivin A.)

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Follistatin, Active Protein (Cat# AAA258120)

Full Name

Follistatin Protein, Mouse, Recombinant (hFc Tag)

Gene Names

Fst; FS; AL033346

Purity

>90% as determined by SDS-PAGE

Pricing

$435/0.05 mg $850/2x0.05 mg $1,235/3x0.05 mg $1,605/4x0.05 mg $1,755/5x0.05 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized mouse CD86 at 20 ug/ml (100 ul/well) can bind mouse CD28 with a linear ranger of 6.4-800 ng/ml.)

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CD86, Active Protein (Cat# AAA258125)

Full Name

CD86 Protein, Mouse, Recombinant (His Tag)

Gene Names

Cd86; B7; B70; MB7; B7-2; B7.2; CLS1; Ly58; ETC-1; Ly-58; MB7-2; Cd28l2; TS/A-2

Purity

>92% as determined by SDS-PAGE

Pricing

$310/0.1 mg $1,565/1 mg $3,045/2x1 mg $4,455/3x1 mg $5,780/4x1 mg $6,835/5x1 mg

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Application Data (Measured by its ability to inhibit BMP4-induced activity in MC3T3-E1 Mouse osteoblastic cells. The ED50 for this effect is typically 0.1-0.3 ug/ml in the presence of 50 ng/mL of recombinant human BMP4.)

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BMPR1A/ALK-3, Active Protein (Cat# AAA258126)

Full Name

BMPR1A/ALK-3 Protein, Mouse, Recombinant (His & hFc Tag)

Gene Names

Bmpr1a; ALK3; Bmpr; BMPR-IA; AU045487; 1110037I22Rik

Purity

>95% as determined by SDS-PAGE

Pricing

$490/0.2 mg $955/2x0.2 mg $1,400/3x0.2 mg $1,815/4x0.2 mg $2,015/5x0.2 mg

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Application Data (Measured in a cell proliferation assay using NIH3T3 cells. The ED50 for this effect is typically 8-32 ng/mL.)

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Oncostatin M/OSM, Active Protein (Cat# AAA258129)

Full Name

Oncostatin M/OSM Protein, Mouse, Recombinant

Gene Names

Osm; OncoM

Purity

>95% as determined by SDS-PAGE

Pricing

$285/0.02 mg $555/0.1 mg $3,035/1 mg $5,920/2x1 mg $8,645/3x1 mg $11,230/4x1 mg $13,455/5x1 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized human uPA at 5 ug/ml (100 ul/well) can bind mouse PLAUR with a linear ranger of 1.6-40 ng/ml.)

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uPAR/PLAUR, Active Protein (Cat# AAA258134)

Full Name

uPAR/PLAUR Protein, Mouse, Recombinant (His & hFc Tag)

Gene Names

Plaur; Cd87; uPAR; u-PAR

Purity

>97% as determined by SDS-PAGE

Pricing

$375/0.1 mg $725/2x0.1 mg $1,060/3x0.1 mg $1,370/4x0.1 mg $1,485/5x0.1 mg

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Application Data (Measured by its ability to bind with uPA-His in a functional ELISA.)

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uPAR/PLAUR, Active Protein (Cat# AAA258135)

Full Name

uPAR/PLAUR Protein, Mouse, Recombinant (His Tag)

Gene Names

Plaur; Cd87; uPAR; u-PAR

Purity

>97% as determined by SDS-PAGE

Pricing

$325/0.05 mg $625/2x0.05 mg $910/3x0.05 mg $1,180/4x0.05 mg $1,245/5x0.05 mg

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Application Data (Measured in a cell proliferation assay using human umbilical vein endothelial cells (HUVEC). The ED50 for this effect is typically 10-50 ng/mL.)

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TWEAK/TNFSF12, Active Protein (Cat# AAA258138)

Full Name

TWEAK/TNFSF12 Protein, Mouse, Recombinant (rFc Tag)

Gene Names

Tnfsf12; Dr3l; Apo3l; Dr3lg; Tweak

Purity

>90 ? as determined by SDS-PAGE

Pricing

$325/0.05 mg $625/2x0.05 mg $910/3x0.05 mg $1,180/4x0.05 mg $1,245/5x0.05 mg

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Application Data (Measured in a cell proliferation assay using Balb/3T3 mouse embryonic fibroblast cells. The ED50 for this effect is 0.04-0.2 ng/mL.)

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FGF1, Active Protein (Cat# AAA258139)

Full Name

FGF1 Protein, Mouse, Rat, Recombinant

Gene Names

Fgf1; Fam; Fgfa; Dffrx; Fgf-1

Purity

>90% as determined by SDS-PAGE

Pricing

$180/0.01 mg $325/0.1 mg $1,565/1 mg $3,045/2x1 mg $4,455/3x1 mg $5,780/4x1 mg $6,835/5x1 mg

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Application Data (Measured by its ability to inhibit mouse FGF acidic (aFGF/FGF1) dependent proliferation of Balb/C 3T3 mouse fibroblasts. The ED50 for this effect is typically 6-25 ng/mL in the presence of 0.5 ng/mL of mouse FGF acidic (aFGF/FGF1).)

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FGFR1, Active Protein (Cat# AAA258140)

Full Name

FGFR1 Protein, Mouse, Recombinant (hFc Tag)

Gene Names

Fgfr1; FLG; MFR; Eask; Hspy; Flt-2; c-fgr; Fgfr-1; AW208770; bFGF-R-1

Purity

>97% as determined by SDS-PAGE

Pricing

$490/0.1 mg $955/2x0.1 mg $1,400/3x0.1 mg $1,815/4x0.1 mg $2,015/5x0.1 mg

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LRPAP1, Active Protein (Cat# AAA258151)

Full Name

LRPAP1 Protein, Mouse, Recombinant (His Tag)

Gene Names

Lrpap1; RAP; HBP44; C77774; AA617339; AI790446; AU042172

Purity

>95% as determined by SDS-PAGE

Pricing

$435/0.1 mg $850/2x0.1 mg $1,235/3x0.1 mg $1,605/4x0.1 mg $1,755/5x0.1 mg

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Application Data (Measured by its ability to induce activation of beta-catenin response in a Topflash Luciferase assay using HEK293T human embryonic kidney cells. The ED50 for this effect is typically 0.1-0.9 ug/ml in the presence of 5 ng/ml recombinant mouse Wnt3a.)

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RSPO1, Active Protein (Cat# AAA258154)

Full Name

RSPO1 Protein, Mouse, Recombinant (His Tag)

Gene Names

Rspo1; Rspondin; R-spondin

Purity

>95% as determined by SDS-PAGE

Pricing

$285/0.02 mg $555/0.1 mg $3,035/1 mg $5,920/2x1 mg $8,645/3x1 mg $11,230/4x1 mg $13,455/5x1 mg

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Carbonic Anhydrase IV, Active Protein (Cat# AAA258156)

Full Name

Carbonic Anhydrase IV Protein, Mouse, Recombinant (His Tag)

Gene Names

Car4; Ca4; AW456718

Purity

>98% as determined by SDS-PAGE

Pricing

$375/0.05 mg $725/2x0.05 mg $1,060/3x0.05 mg $1,370/4x0.05 mg $1,485/5x0.05 mg

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Application Data (Measured in a cell proliferation assay using MCF-7 cells. The ED50 for this effect is 0.2-1.2 ug/mL.)

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IGF1, Active Protein (Cat# AAA258162)

Full Name

IGF1 Protein, Mouse, Recombinant

Gene Names

Igf1; Igf-1; Igf-I; C730016P09Rik

Purity

>95% as determined by SDS-PAGE

Pricing

$265/0.05 mg $1,690/1 mg $3,290/2x1 mg $4,805/3x1 mg $6,240/4x1 mg $7,405/5x1 mg

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Application Data (Measured by its ability to inhibit IL-2 secretion by stimulated Jurkat human acute T cell leukemia cells. The ED50 for this effect is 0.05-0.3ug/mL when stimulated with 1 ug/mL Recombinant Human B7-1/CD80.)

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CTLA-4, Active Protein (Cat# AAA258168)

Full Name

CTLA-4 Protein, Mouse, Recombinant (ECD, hFc Tag)

Gene Names

Ctla4; Cd152; Ly-56; Ctla-4

Purity

>95% as determined by SDS-PAGE

Pricing

$250/0.1 mg $1,045/1 mg $2,030/2x1 mg $2,970/3x1 mg $3,855/4x1 mg $4,495/5x1 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized Mouse Ephrin B2 His at 2 ug/ml (100 ul/well) can bind Mouse EphB4 hFc, the EC50 of Mouse EphB4 hFc is 2.0-10.0 ng/mL.)

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EphB4, Active Protein (Cat# AAA258173)

Full Name

EphB4 Protein, Mouse, Recombinant (hFc Tag)

Gene Names

Ephb4; Htk; MDK2; Myk1; Tyro11; AI042935; b2b2412Clo

Purity

>97% as determined by SDS-PAGE

Pricing

$375/0.2 mg $725/2x0.2 mg $1,060/3x0.2 mg $1,370/4x0.2 mg $1,485/5x0.2 mg

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Application Data (Immobilized human VEGF-C at 10 ug/mL (100 uL/well) can bind mouse VEGFR3-Fc. The EC50 of mouse VEGFR3-Fc is 0.008 ug/mL.)

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VEGFR3/FLT4, Active Protein (Cat# AAA258175)

Full Name

VEGFR3/FLT4 Protein, Mouse, Recombinant (hFc Tag)

Gene Names

Flt4; Chy; Flt-4; VEGFR3; VEGFR-3; AI323512

Purity

>92% as determined by SDS-PAGE

Pricing

$455/0.1 mg $890/2x0.1 mg $1,295/3x0.1 mg $1,680/4x0.1 mg $1,865/5x0.1 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized human HGF at 2 ug/ml (100 ul/well) can bind mouse HGFR with a linear ranger of 1.28-32ng/ml.)

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c-MET, Active Protein (Cat# AAA258186)

Full Name

c-MET Protein, Mouse, Recombinant (hFc Tag)

Gene Names

Met; HGF; HGFR; Par4; c-Met; AI838057

Purity

>92% as determined by SDS-PAGE

Pricing

$385/0.1 mg $2,020/1 mg $3,940/2x1 mg $5,755/3x1 mg $7,475/4x1 mg $8,905/5x1 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized mouse EphrinA3 at 1 ug/ml (100 ul/well) can bind mouse EPHA6 / chimera with a linear ranger of 6.25-400 ng/ml.)

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EphA6, Active Protein (Cat# AAA258187)

Full Name

EphA6 Protein, Mouse, Recombinant (hFc Tag)

Purity

>90% as determined by SDS-PAGE

Pricing

$375/0.2 mg $725/2x0.2 mg $1,060/3x0.2 mg $1,370/4x0.2 mg $1,485/5x0.2 mg

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Application Data (Measured by its binding ability in a functional ELISA. Immobilized recombinant mouse EphA6 at 2 ug/ml (100 ul/well) can bind recombinant human EphrinA3 at a linear range of 0.31-10 ng/ml.)

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EphA6, Active Protein (Cat# AAA258188)

Full Name

EphA6 Protein, Mouse, Recombinant (His Tag)

Purity

>97% as determined by SDS-PAGE

Pricing

$610/0.2 mg $1,180/2x0.2 mg $1,725/3x0.2 mg $2,235/4x0.2 mg $2,530/5x0.2 mg

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Application Data (Measured by its binding ability in a functional ELISA. 1. Immobilized human ACVR2B at 10 ug/mL (100 ul/well) can bind biotinylated mouse INHBA-His, The EC50 of biotinylated mouse INHBA-His is 0.161 ug/mL. 2. Immobilized mouse INHBA-his at 10 ug/mL (100 ul/well) can bind human Follistatin Protein, The EC50 of human Follistatin Protein is 0.39 ug/mL.)

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Inhibin beta A/Activin A, Active Protein (Cat# AAA258193)

Full Name

Inhibin beta A/Activin A Protein, Mouse, Recombinant (His Tag)

Purity

>88% as determined by SDS-PAGE

Pricing

$490/0.05 mg $955/2x0.05 mg $1,400/3x0.05 mg $1,815/4x0.05 mg $2,015/5x0.05 mg

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Carbonic Anhydrase IX, Active Protein (Cat# AAA258194)

Full Name

Carbonic Anhydrase IX Protein, Mouse, Recombinant (His Tag)

Gene Names

Car9; Ca9; CAIX; MN/CA9

Purity

>95% as determined by SDS-PAGE

Pricing

$310/0.05 mg $2,310/1 mg $4,500/2x1 mg $6,570/3x1 mg $8,530/4x1 mg $10,195/5x1 mg

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Application Data (Immobilized Mouse IFNGR1-His at 2 ug/mL (100 ul/well) can bind mouse IFNG-Fc, The EC50 of mouse IFNG-Fc is 20-100 ng/mL.)

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IFNGR1, Active Protein (Cat# AAA258196)

Full Name

IFNGR1 Protein, Mouse, Recombinant (His Tag)

Gene Names

Ifngr1; Ifgr; CD119; Ifngr; Nktar; IFN-gammaR

Purity

>98% as determined by SDS-PAGE

Pricing

$325/0.1 mg $625/2x0.1 mg $910/3x0.1 mg $1,180/4x0.1 mg $1,245/5x0.1 mg

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Application Data (Measured in antiviral assay using L929 cells infected with vesicular stomatitisvirus (VSV). The ED50 for this effect is typically 0.2-1 ng/mL.)

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Interferon Gamma, Active Protein (Cat# AAA258198)

Full Name

Interferon Gamma Protein, Mouse, Recombinant (His Tag)

Gene Names

Ifng; Ifg; IFN-g

Purity

>75% as determined by SDS-PAGE

Pricing

$220/0.02 mg $375/0.1 mg $725/2x0.1 mg $1,060/3x0.1 mg $1,370/4x0.1 mg $1,485/5x0.1 mg

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Application Data

Application Data (Immobilized human ACE2 protein (mFc tag)(Cat:10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant SARS-CoV-2 (BA.2.75) Spike S1+S2 trimer Protein (ECD, His Tag)(Cat:AAA258580), the EC50 is 15-40 ng/mL.)

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COVID 19 (BA.2.75) Spike S1+S2 trimer Coronavirus, Active Protein (Cat# AAA258580)

Full Name

SARS-CoV-2 (BA.2.75) Spike S1+S2 trimer Protein (ECD, His Tag)

Purity

>95% as determined by SDS-PAGE. >95% as determined by SEC-HPLC.

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Application Data (Immobilized ACE2 Protein, Human, Recombinant (mFc Tag)(Cat:10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant SARS-CoV-2(BA.4/BA.5) S1+S2 trimer Protein (ECD, His & AVI Tag) (Cat:AAA258581), the EC50 is 2.7-8.1 ng/mL.)

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COVID 19 (BA.4/BA.5) Spike S1+S2 trimer Coronavirus, Active Protein (Cat# AAA258581)

Full Name

SARS-CoV-2 (BA.4/BA.5) Spike S1+S2 trimer Protein (ECD, His & AVI Tag), Biotinylated

Purity

>90% as determined by SDS-PAGE. >90% as determined by SEC-HPLC.

Pricing

$490/0.02 mg $955/2x0.02 mg $1,400/3x0.02 mg $1,815/4x0.02 mg $2,015/5x0.02 mg

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Application Data (Immobilized human ACE2 protein (Fc tag)(Cat: 10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant SARS-CoV-2 (BA.2.75.2) Spike RBD Protein (His Tag)(Cat: AAA258583), the EC50 is 20-60 ng/mL.)

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COVID 19 BA.2.75.2 (Omicron) Spike RBD Coronavirus, Active Protein (Cat# AAA258583)

Full Name

SARS-CoV-2 BA.2.75.2 (Omicron) Spike RBD Protein (His Tag)

Purity

>95% as determined by SDS-PAGE. >95% as determined by SEC-HPLC.

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Application Data (Immobilized human ACE2 protein (Fc tag)(Cat: 10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant SARS-CoV-2 (BA.2.75)Spike RBD Protein (His&AVI Tag),Biotinylated(Cat: AAA258584), the EC50 is 1.8-6 ng/mL.)

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COVID 19 BA.2.75 (Omicron) Spike RBD Coronavirus, Active Protein (Cat# AAA258584)

Full Name

SARS-CoV-2 BA.2.75 (Omicron) Spike RBD Protein (His & AVI Tag), Biotinylated

Purity

>90% as determined by SDS-PAGE. >90% as determined by SEC-HPLC.

Pricing

$490/0.02 mg $955/2x0.02 mg $1,400/3x0.02 mg $1,815/4x0.02 mg $2,015/5x0.02 mg

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Application Data (Immobilized human ACE2 protein (Fc tag)(Cat: 10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant SARS-CoV-2 (BA.2.75) Spike S1+S2 trimer Protein(ECD, His&AVI Tag)(Cat: AAA258587), the EC50 is 4-12 ng/mL.)

Application Data

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COVID 19 (BA.2.75) Spike S1+S2 trimer Coronavirus, Active Protein (Cat# AAA258587)

Full Name

SARS-CoV-2 (BA.2.75) Spike S1+S2 trimer Protein (ECD, His & AVI Tag), Biotinylated

Purity

>90% as determined by SDS-PAGE. >95% as determined by SEC-HPLC.

Pricing

$490/0.02 mg $955/2x0.02 mg $1,400/3x0.02 mg $1,815/4x0.02 mg $2,015/5x0.02 mg

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Application Data (Immobilized human ACE2 protein (Fc tag)(Cat: 10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant Recombinant SARS-CoV-2 (BA.2.3.20) Spike RBD Protein (His Tag)(Cat: AAA258589), the EC50 is 6-18 ng/mL.)

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COVID 19 (BA.2.3.20) Spike RBD Coronavirus, Active Protein (Cat# AAA258589)

Full Name

SARS-CoV-2 (BA.2.3.20) Spike RBD Protein (His Tag)

Purity

>95% as determined by SDS-PAGE. >95% as determined by SEC-HPLC.

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Application Data (Immobilized human ACE2 protein (Fc tag)(Cat: 10108-H05H) at 2 ug/mL (100 uL/well) can bind Recombinant SARS-CoV-2 BA.3 (Omicron) Spike S1+S2 trimer Protein (His Tag)(Cat:AAA258595), the EC50 is 5-15 ng/mL.)

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COVID 19 BA.3 (Omicron) Spike S1+S2 trimer Coronavirus, Active Protein (Cat# AAA258595)

Full Name

SARS-CoV-2 BA.3 (Omicron) Spike S1+S2 trimer Protein (ECD, His Tag)

Purity

>90% as determined by SDS-PAGE. >90% as determined by SEC-HPLC.

Pricing

$610/0.1 mg $1,180/2x0.1 mg $1,725/3x0.1 mg $2,235/4x0.1 mg $2,530/5x0.1 mg

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Bioactivity

SDS-PAGE ((Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.)

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Angiotensin-converting enzyme 2 (ACE2), Active Protein (Cat# AAA244035)

Full Name

Recombinant Human Angiotensin-converting enzyme 2 (ACE2), partial

Gene Names

ACE2; ACEH

Purity

Greater or equal to 85% purity as determined by SDS-PAGE.

Pricing

$580/0.02 mg $760/0.1 mg $4,180/1 mg $8,140/2x1 mg $11,895/3x1 mg $15,440/4x1 mg $18,900/5x1 mg

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Bioactivity (Carbonic Anhydrase (CA) catalyzes the reversible reaction of CO2  H2O = HCO3-  H, which is fundamental to many processes such as respiration, renal tubular acidification and bone resorption. CA13 is a cytosolic enzyme with a unique and widespread distribution pattern as compared to the other cytosolic CAs, indicating that it may play important physiological roles in several organs. The activity of recombinant mouse CA13 was measured by its ability to hydrolyze 4-Nitrophenyl acetate (4-NPA) to 4-Nitrophenol. The reaction was performed in 12.5 mM Tris, 75 mM NaCl, pH 7.5 (assay buffer), initiated by addition 50 uL of various concentrations of CA13 (diluted by assay buffer) to 50 uL of 2 mM substrate 4-NPA (100 mM stock in Acetone, diluted by assay buffer). Incubated at 37 degree C for 5min, then read at a wavelength of 400 nm.)

SDS-PAGE (Figure. SDS-PAGE)

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Carbonic Anhydrase XIII (CA13), Active Protein (Cat# AAA161907)

Full Name

Active Carbonic Anhydrase XIII (CA13)

Gene Names

Car13; Ca13; 2310075C21Rik

Applications

Activity Assay, Cell Culture

Purity

Greater than 95% by SDS-PAGE

Pricing

$215/0.01 mg $380/0.05 mg $585/0.1 mg $700/0.2 mg $1,330/0.5 mg $1,960/1 mg $2,590/2 mg $4,775/5 mg $9,305/2x5 mg $13,600/3x5 mg $17,655/4x5 mg $21,580/5x5 mg

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Bioactivity (Figure 2. Inhibition of A549 cells proliferation after stimulated with FBLN2.)

Bioactivity (Fibulin 2 (FBLN2) is the second largest member of the seven-member fibulin family of extracellular membrane (ECM) glycoproteins. The protein is known to form disulfide-linked homodimers, but it can also be secreted as an oligomer. Fibulin 2 is considered a multifunctional binding protein due to its association with numerous ECM components, but its specific interactions have yet to be determined. Fibulin 2 is localized at the interface between microfibrils and the elastin core and its known interactions include nidogen-1, perlecan, laminin, aggrecan, endostatins, versican, collagen, and tropoelastin. It is down-regulated in numerous forms of cancer including breast, colorectal, lung, esophageal, and squamous cell carcinoma, but over-expression has been shown with solid tumors. To test the effect of FBLN2 on cell apoptosis, A549 cells were seeded into triplicate wells of 96-well plates at a density of 4,000 cells/well and allowed to attach overnight, then the medium was replaced with various concentrations of recombinant mouse FBLN2 diluted with 5% serum standard DMEM. After incubated for 72h, cells were observed by inverted microscope and cell proliferation was measured by Cell Counting Kit-8 (CCK-8). Briefly, 10 ul of CCK-8 solution was added to each well of the plate, then the absorbance at 450 nm was measured using a microplate reader after incubating the plate for 1h at 37 degree C. Proliferation of A549 cells after incubation with FBLN2 for 72h observed by inverted microscope was shown in Figure 1. Cell viability was assessed by CCK-8 (Cell Counting Kit-8) assay after incubation with recombinant mouse FBLN2 for 72h. The result was shown in Figure 2. It was obvious that FBLN2 significantly inhibit cell viability of A549 cells. The ED50 is 1.25 ug/mL.)

SDS-PAGE (Figure. SDS-PAGE)

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Fibulin 2 (FBLN2), Active Protein (Cat# AAA161909)

Full Name

Active Fibulin 2 (FBLN2)

Gene Names

Fbln2; FIBL-2; 5730577E14Rik

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$235/0.01 mg $450/0.05 mg $680/0.1 mg $835/0.2 mg $1,595/0.5 mg $2,355/1 mg $3,115/2 mg $5,740/5 mg $11,180/2x5 mg $16,345/3x5 mg $21,215/4x5 mg $25,960/5x5 mg

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Bioactivity (Taste receptor type 1 member 3 (TAS1R3), responsible for mediating taste perception, is a G protein-coupled receptor (GPCR) expressed in gustatory cells located within the taste buds on the tongue. It can form a heterodimeric receptor with TAS1R1 to elicit the umami taste response, or it can bind with TAS1R2 to form a receptor for the sweet taste response, thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human TAS1R3 and recombinant mouse TAS1R1. Briefly, biotin-linked TAS1R3 were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100 ul were then transferred to TAS1R1-coated microtiter wells and incubated for 1h at 37 degree C. Wells were washed with PBST 3 times and incubation with Streptavidin-HRP for 30min, then wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50 ul stop solution to the wells and read at 450 nm immediately. The binding activity of recombinant human TAS1R3 and recombinant mouse TAS1R1 was shown in Figure 1, the EC50 for this effect is 0.31 ug/mL.)

SDS-PAGE (Figure. SDS-PAGE)

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Taste Receptor Type 1 Member 3 (TAS1R3), Active Protein (Cat# AAA161923)

Full Name

Active Taste Receptor Type 1 Member 3 (TAS1R3)

Gene Names

TAS1R3; T1R3

Applications

Activity Assay, Cell Culture

Purity

Greater than 95% by SDS-PAGE

Pricing

$280/0.01 mg $535/0.05 mg $810/0.1 mg $985/0.2 mg $1,895/0.5 mg $2,815/1 mg $3,705/2 mg $6,840/5 mg $13,335/2x5 mg $19,485/3x5 mg $25,300/4x5 mg $31,000/5x5 mg

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Bioactivity (Isocitrate Dehydrogenase 2 (IDH2) catalyzes the oxidative decarboxylation of isocitrate to alpha-ketoglutarate. There are two subclasses in the IDH family, one of them utilizing NADP  as the electron acceptor and the other using NAD. The protein encoded by this gene is the NADP dependent isocitrate dehydrogenase found in the mitochondrial. The activity of recombinant human IDH2 was measured by the ability to oxidatively decarboxylate isocitrate to 2-oxoglutarate. The reaction was performed in 25 mM Tris, 0.5 mM MnCl2, 5 mM DTT, pH 7.5 (Assay Buffer), initiated by addition 50 uL of various concentrations of IDH2 (diluted by Assay Buffer) to 50 uL of substrate mixture consisted of 1 mM NADP and 2 mM isocitric acid. The final well serves as a negative control with no IDH2, replaced with 50ul assay buffer. Incubated at 25 degree C for 5min, then read at a wavelength of 340 nm. The specific activity of recombinant human IDH2 is >200 pmol/min/ug.)

SDS-PAGE (Figure. SDS-PAGE)

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Isocitrate Dehydrogenase 2, mitochondrial (IDH2), Active Protein (Cat# AAA161929)

Full Name

Active Isocitrate Dehydrogenase 2, mitochondrial (IDH2)

Gene Names

IDH2; IDH; IDP; IDHM; IDPM; ICD-M; D2HGA2; mNADP-IDH

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$285/0.01 mg $550/0.05 mg $830/0.1 mg $1,010/0.2 mg $1,955/0.5 mg $2,900/1 mg $3,820/2 mg $7,055/5 mg $13,750/2x5 mg $20,090/3x5 mg $26,085/4x5 mg

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Bioactivity (Granzyme H is a member of the granzyme family of serine proteases found specifically in the cytotoxic granules of cytotoxic T lymphocytes (CTL) and natural killer (NK) cells. Granzyme H's functions are largely unknown. The more abundant expression of Granzyme H than Granzyme B in NK cells suggests that Granzyme H may complement the pro-apoptotic function of Granzyme B in this cell type. Human Granzyme H is synthesized as a precursor (246 residues) with a signal peptide (residues 1-18), a propeptide (residues 19-20) and a mature chain (residues 21-246). The purified recombinant human Granzyme H consists of residues 19 to 246 which activity was measured by its ability to cleaves a thioester substrate Z-Lys-SBzl•HCl. The reaction was performed in 0.05 M Tris, 0.15 M NaCl, 0.01% Triton X-100, pH 8.0 (Assay Buffer), initiated by addition 50 uL of various concentrations of GZMH (diluted by Assay Buffer) to 50 uL of 1.2 mM Substrate and DTNB mixture. The final well serves as a negative control with no GZMH, replaced with 50 uL assay buffer. Incubated at 25 degree C for 5min, then read at a wavelength of 405 nm. The specific activity of recombinant human Granzyme H is >300 pmol/min/ug.)

SDS-PAGE (Figure. SDS-PAGE)

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Granzyme H (GZMH), Active Protein (Cat# AAA161935)

Full Name

Active Granzyme H (GZMH)

Gene Names

GZMH; CCP-X; CGL-2; CSP-C; CTLA1; CTSGL2

Applications

Activity Assay, Cell Culture

Purity

Greater than 95% by SDS-PAGE

Pricing

$285/0.01 mg $550/0.05 mg $830/0.1 mg $1,010/0.2 mg $1,955/0.5 mg $2,900/1 mg $3,820/2 mg $7,055/5 mg $13,750/2x5 mg $20,090/3x5 mg $26,085/4x5 mg

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Bioactivity (C reactive protein (CRP) is an annular (ring-shaped), pentameric protein found in blood plasma, whose levels rise in response to inflammation. It is an acute-phase protein of hepatic origin that increases following interleukin-6 secretion by macrophages and T cells. Its physiological role is to bind to lysophosphatidylcholine expressed on the surface of dead or dying cells (and some types of bacteria) in order to activate the complement system via C1q. Besides, Coagulation Factor II (F2) has been identified as an interactor of CRP, thus a functional binding ELISA assay was conducted to detect the interaction of recombinant horse CRP and recombinant rat F2. Briefly, CRP was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 ul were then transferred to F2-coated microtiter wells and incubated for 1h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-CRP pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37 degree C, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50 uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of recombinant horse CRP and recombinant rat F2 was shown in Figure 1, the EC50 for this effect is 3.29 ug/mL.)

SDS-PAGE (Figure. SDS-PAGE)

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C ReProtein (CRP), Active Protein (Cat# AAA161779)

Full Name

Active C Reactive Protein (CRP)

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$285/0.01 mg $555/0.05 mg $840/0.1 mg $1,020/0.2 mg $1,975/0.5 mg $2,935/1 mg $3,870/2 mg $7,160/5 mg $13,950/2x5 mg $20,390/3x5 mg $26,470/4x5 mg

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Bioactivity (Figure 2. Cell proliferation of M-NFS-60 cells after stimulated with G-CSF.)

Bioactivity (G-CSF is a pleiotropic cytokine best known for its specific effects on the proliferation, differentiation, and activation of hematopoietic cells of the neutrophilic granulocyte lineage. It is produced mainly by monocytes and macrophages upon activation by endotoxin, TNF-alpha and IFN-gamma. In addition, various carcinoma cell lines and myeloblastic leukemia cells can express G-CSF constitutively. In vitro, G-CSF stimulates growth, differentiation and functions of cells from the neutrophil lineage. Consistent with its in vitro functions, G-CSF has been found to play important roles in defense against infection, in inflammation and repair, and in the maintenance of steady state hematopoiesis. The activity of G-CSF is usually measured by a cell proliferation assay using M-NFS60 mouse myelogenous leukemia lymphoblast cells. M-NFS60 cells were seeded into triplicate wells of 96-well plates at a density of 8,000 cells/well with 2% serum standard 1640 which contains various concentrations of recombinant rat G-CSF. After incubated for 3 days, cells were observed by inverted microscope and cell proliferation was measured by Cell Counting Kit-8 (CCK-8). Briefly, 10 ul of CCK-8 solution was added to each well of the plate, then the absorbance at 450 nm was measured using a microplate reader after incubating the plate for 2-4 hours at 37 degree C. Proliferation of M-NFS-60 cells after incubation with G-CSF for 3 days observed by inverted microscope was shown in Figure 1. Cell viability was assessed by CCK-8 (Cell Counting Kit-8) assay after incubation with recombinant rat G-CSF for 3 days. The result was shown in Figure 2. It was obvious that G-CSF significantly increased cell viability of M-NFS-60 cells. The EC50 is 0.63 ng/ml)

SDS-PAGE (Figure. SDS-PAGE)

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Colony Stimulating Factor 3, Granulocyte (GCSF), Active Protein (Cat# AAA161666)

Full Name

Active Colony Stimulating Factor 3, Granulocyte (GCSF)

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$290/0.01 mg $570/0.05 mg $850/0.1 mg $1,055/0.2 mg $2,010/0.5 mg $2,985/1 mg $3,930/2 mg $7,265/5 mg $14,165/2x5 mg $20,705/3x5 mg $26,875/4x5 mg

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Bioactivity (Interleukin 15 (IL15) is a widely expressed cytokine that is structurally and functionally related to IL2, which plays an important role in many immunological diseases. IL15 also regulates T and natural killer (NK) cell activation and proliferation. The activity of recombinant pig IL15 was measured in a cell proliferation assay using MO7e human megakaryocytic leukemic cells. MO7e cells were seeded into triplicate wells of 96-well plates at a density of 30,000 cells/well in RPMI-1640 with the addition of various concentrations of rpIL15. After incubated for 72h, cells were observed by inverted microscope and cell proliferation was measured by Cell Counting Kit-8 (CCK-8). Briefly, 10 ul of CCK-8 solution was added to each well of the plate, then the absorbance at 450 nm was measured using a microplate reader after incubating the plate for 1-4 hours at 37 degree C. Cell proliferation of MO7e cells after incubation with rpIL15 for 72h observed by inverted microscope was shown in Figure 1. The dose-effect curve of rpIL15 was shown in Figure 2. It was obvious that rpIL15 significantly promoted cell proliferation of MO7e cells.The EC50 for this effect is typically 0.55 ug/ml.)

SDS-PAGE (Figure. SDS-PAGE)

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Interleukin 15 (IL15), Active Protein (Cat# AAA161674)

Full Name

Active Interleukin 15 (IL15)

Gene Names

IL15; IL-15

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$370/0.01 mg $825/0.05 mg $1,260/0.1 mg $1,560/0.2 mg $3,050/0.5 mg $4,510/1 mg $6,000/2 mg $10,980/5 mg $21,395/2x5 mg $31,270/3x5 mg $40,600/4x5 mg

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Bioactivity (Extracellular superoxide dismutase [Cu-Zn] is an enzyme that in humans is encoded by the SOD3 gene. This gene encodes a member of the superoxide dismutase (SOD) protein family. SODs are antioxidant enzymes that catalyze the dismutation of two superoxide radicals into hydrogen peroxide and oxygen. Acroding to the report, in a weakly alkaline buffer solution (pH=8.2) with N-tris(hydroxymethyl)amino methane-HCL, pyrogallol can occur autoxidation in the air, then SOD can inhibit this reaction. Thus, we use this way to measued the activity of recombinant human SOD3. The reaction was performed in adding 8 ul 5 mmol/L pyrogallol to 200 ul 50mmol/L Tris-HCl, rapidly mixing at 25 degree C, then read at 325 nm (using 50mmol/L Tris-HCl as blank control) in kinetic mode for 3 minutes using a microplate reader controlling the pyrogallol autoxidation rate at 0.70 OD/min. Different concentrations of recombinant human SOD3 were added into 200 ul 50 mmol/L Tris-HCl, incubated for 20 min at 25 degree C, then adding 8 ul 5 mmol/L pyrogallol to each well, rapidly mixing and read at 325 nm in kinetic mode for 3 minutes. Under these conditions, the enzyme amount of 50% inhibition of pyrogallol autooxidation per minute is defined as a unit. The specific activity of recombinant human SOD3 is 846.6 U/mg.)

SDS-PAGE (Figure. SDS-PAGE)

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Superoxide Dismutase 3, Extracellular (SOD3), Active Protein (Cat# AAA161691)

Full Name

Active Superoxide Dismutase 3, Extracellular (SOD3)

Gene Names

SOD3; EC-SOD

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$225/0.01 mg $415/0.05 mg $630/0.1 mg $765/0.2 mg $1,460/0.5 mg $2,165/1 mg $2,850/2 mg $5,265/5 mg $10,260/2x5 mg $14,990/3x5 mg $19,465/4x5 mg $23,820/5x5 mg

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Bioactivity (Acid phosphatase locus 1 (ACP1) is a low molecular weight protein tyrosine phosphatase that has been shown to be an important regulator of insulin receptor signaling. EFNA1 is a kind of receptor tyrosine kinase which can Interact with ACP1. Thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human EFNA1 and recombinant human ACP1. Briefly, EFNA1 was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 ul were then transferred to ACP1-coated microtiter wells and incubated for 1h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-EFNA1 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37 degree C, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50 uL stop solution to the wells and read at 450/630 nm immediately. When recombinant human ACP1 is immobilized at 2 ug/ml (100 ul/well), the concentration of EFNA1 that produces 50% optimal binding response is found to be approximately 0.21 ug/ml.)

SDS-PAGE (Figure. SDS-PAGE)

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Acid Phosphatase 1 (ACP1), Active Protein (Cat# AAA161820)

Full Name

Active Acid Phosphatase 1 (ACP1)

Gene Names

ACP1; HAAP

Applications

Activity Assay, Cell Culture

Purity

Greater than 90% by SDS-PAGE

Pricing

$210/0.01 mg $370/0.05 mg $550/0.1 mg $665/0.2 mg $1,250/0.5 mg $1,850/1 mg $2,435/2 mg $4,475/5 mg $8,720/2x5 mg $12,740/3x5 mg $16,535/4x5 mg $20,250/5x5 mg

What Are Active Proteins?

Proteins are large molecules made up of long chains of amino acids.
They will typically fold into a very particular 3-dimensional shape/conformation, that is sometimes referred to as their “native” form, which allows them to work properly in the body. For the purposes of product categorization, AAA Biotech will typically refer to proteins purified from their original animal host as being “native” proteins (this is to signify their difference compared to their “recombinant” or “synthetic” protein counterparts).

If a protein successfully folds into the correct shape, it is will typically display high fidelity characteristics to its original protein in its original animal host, and be classified as an active protein, as it will be able to function “normally” in most enzymatic or binding capacities. If it loses this shape, due to factors such as heat or strong chemicals (such as detergents), it becomes inactive and is no longer able to perform its basic functions. All of the proteins in this category are made under strict quality control, and they are active, pure, low in contaminants, and stable.
Most are stored as freeze-dried powders and come without extra tags, so they’re very close to the actual natural/native form.

Key Applications of Active Proteins

1. Scientific Research

• Aid in the study of how proteins function in the body


• Aid in understanding various disease processes

2. Drug Development

• Powerful tools to investigate how potential drugs interact with specific proteins


• Ideal for identifying drug targets

3. Cell Culture

• Are routinely utilized to support cell growth and function (e.g., using exogenous growth factors)


• Can be used to promote cellular development into specific types (differentiation)

4. Diagnostics

• Regularly utilized in tests to detect diseases or infections (e.g., COVID-19, cancer)


• Note: All products are strictly for research-use only (RUO).

5. Therapeutics

• Some active proteins are used directly as treatments (e.g., insulin, enzymes)


• Note: All products are strictly for research-use only (RUO).

6. Vaccine Development

• Used to create or test vaccines by mimicking parts of viruses or bacteria

7. Biochemical Assays

• They can facilitate the characterization of enzyme activity, binding strength, or protein interactions in lab tests

Why Buy Active Proteins from AAA Biotech?

• High biological activity – Verified to perform as expected or indicated on datasheet


• Strict quality control – We are confident in our active proteins’ reliability and consistency


• High purity & low endotoxin – Ideal for applications involving sensitive or precious samples/components


• Freeze-dried for stability – Long shelf life and straightforward storage


• Mostly tag-free – Closer to natural/native protein form

FAQ

1. What are active proteins used for in research?

Active proteins are used primarily in the study of how proteins function, in characterizing/discovering drug interactions, supporting cell growth, running biochemical assays, and in development of diagnostics or therapeutics.

2. How are AAA Biotech's active proteins validated?

AAA Biotech’s active proteins are validated through strict quality control and functional assays to ensure they are properly folded and active. “Active”, though, can be an ambiguous term, so if a specific “activity” or “binding” capability of a protein is of crucial interest to you, please inquire with us prior to purchase, and we will provide further details on how the “Active” modifier was determined to be applicable.

3. Are these proteins tested for biological activity?

Yes, all active proteins from AAA Biotech are tested to confirm they have the expected biological activity before being offered for use. Though, said “biological activity” can be either “enzymatic”, “binding”, or both.