Phospho-specific antibodies’ typical purpose is to enable researchers to detect changes in proteins. They will exclusively bind to the amino acid sequence on a protein that has been phosphorylated (which is both a physical & chemical change) and do not bind to the same amino acid sequence on said protein if it lacks said phosphorylation. This aids in being able to clearly see and understand the data produced from this particular protein modification.
WB (Western Blot) (Western blot analysis of lysates from Jurkat cells treated with EGF 200ng/ml 15', using PKC thet (Phospho-Ser695) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using PKC thet (Phospho-Ser695) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HUVEC cells treated with Anisomycin 25ug/ml 30', using ATF2 (Phospho-Ser480) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human lung carcinoma, using ATF2 (Phospho-Ser480) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HeLa cells, using ATF2 (Phospho-Ser480) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from COS7 cells treated with TNF-a 20ng/ml+Calyculin A 50nM 5', using BAD (Phospho-Ser91/128) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using BAD (Phospho-Ser91/128) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HUVEC cells treated with UV 15', using C/EBP-epsilon (Phospho-Thr74) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using C/EBP-epsilon (Phospho-Thr74) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HeLa cells, using C/EBP-epsilon (Phospho-Thr74) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from LOVO cells, using Calcium Sensing Receptor (Phospho-Thr888) Antibody. The lane on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HeLa cells, using Calcium Sensing Receptor (Phospho-Thr888) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from Jurkat cells treated with Insulin 0.01U/ml 15', using Calmodulin (Phospho-Thr79+Ser81) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using Calmodulin (Phospho-Thr79+Ser81) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HepG2 cells, using Calmodulin (Phospho-Thr79+Ser81) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from COS7 cells treated with EGF 200ng/ml 30', using CD18/ITGB2 (Phospho-Thr758) Antibody. The lane on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HepG2 cells, using CD18/ITGB2 (Phospho-Thr758) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from Jurkat cells treated with PMA 125ng/ml 30', using CHOP (Phospho-Ser30) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using CHOP (Phospho-Ser30) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of A549 cells, using CHOP (Phospho-Ser30) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HUVEC cells, using CKII-beta (Phospho-Ser209) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using CKII-beta (Phospho-Ser209) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HepG2 cells, using c-Met (Phospho-Tyr1003) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human colon carcinoma, using c-Met (Phospho-Tyr1003) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HepG2 cells, using c-Met (Phospho-Tyr1003) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HepG2 cells, using CSFR (Phospho-Tyr561) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using CSFR (Phospho-Tyr561) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HepG2 cells, using EPHB1/2 (Phospho-Tyr594/604) Antibody. The lane on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HUVEC cells, using EPHB1/2 (Phospho-Tyr594/604) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from COLO205 cells treated with serum 20% 15', using Elk3 (Phospho-Ser357) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using Elk3 (Phospho-Ser357) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of HeLa cells, using Elk3 (Phospho-Ser357) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
IHC (Immunohiostchemistry) (Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using STAT6(Phospho-Tyr641) Antibody(left) or the same antibody preincubated with blocking peptide(right).)
WB (Western Blot) (Western blot analysis of extracts from Hela cells untreated or treated with IL-4 using STAT6(Phospho-Tyr641) Antibody.)
Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatography usin
IHC (Immunohiostchemistry) (Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using ATF4(Phospho-Ser245) Antibody(left) or the same antibody preincubated with blocking peptide(right).)
WB (Western Blot) (Western blot analysis of extracts from Hela cells untreated or treated with UV using ATF4(Phospho-Ser245) Antibody.)
Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatography usin
Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatography usin
WB (Western Blot) (Western blot of HeLa lysate showing specific labeling of the ~95k IR protein phosphorylated at Thr1160 (Control). Immunolabeling is completely eliminated by treatment with lambda-phosphatase (?-Ptase).)
IHC (Immunohiostchemistry) (Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using MAPKAPK2 (Phospho-Thr334) antibody. Western blot analysis of extracts from NIH/3T3 cells, using MAPKAPK2 (Phospho-Thr334) antibody.)
Affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
WB (Western Blot) (Detection of human Phospho MCM2 (Ser41) by western blot. Samples: Whole cell lysate (30 ug) from HeLa cells that were either untreated or treated with alkaline phosphatase (AP). Antibodies: Affinity purified rabbit anti-phospho MCM2 (Ser41) antibody AAA210771 used at 0.1 ug/ml. After probing with the phospho-specific antibodies, rabbit anti-MCM2 antibody was used at 0.2 ug/ml to show total MCM2. Detection: Chemiluminescence with a 1 minute exposure.)
WB (Western Blot) (Detection of human Phospho MCM2 (S41) by western blot. Samples: Whole cell lysate (50 ug) from HeLa and HEK293T cells prepared using NETN lysis buffer. Antibody: Affinity purified rabbit anti-Phospho MCM2 (S41) antibody AAA210771 (lot AAA210771-1) used for WB at 0.1 ug/ml. Detection: Chemiluminescence with an exposure time of 10 seconds.)
IHC (Immunohistochemistry) (Detection of human and mouse MCM2 (Ser41) by immunohistochemistry. Sample: FFPE section of human laryngeal squamous cell carcinoma (left) and mouse squamous cell carcinoma (right). Antibody: Affinity purified rabbit anti-MCM2 (Ser41) (Cat. No. AAA210771 Lot1) used at a dilution of 1:1,000 (1ug/ml). Detection: DAB)
IHC (Immunohiostchemistry) (Immunohistochemical analysis of paraffin-embedded human liver cancer. 1, Antibody was diluted at 1:200(4 degree overnight). 2, Tris-EDTA,pH9.0 was used for antigen retrieval. 3,Secondary antibody was diluted at 1:200(room temperature, 45min).)
WB (Western Blot) (Western Blot analysis of Hela treated or untreated by LPS lysis, using primary antibody at 1:1000 dilution. Secondary antibody)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from 293 cells, using Stathmin 1 (Phospho-Ser15) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohiostchemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using Stathmin 1 (Phospho-Ser15) Antibody. The picture on the right is blocked with the phospho peptide.)
IF (Immunofluorescence) (Immunofluorescence analysis of COS7 cells, using Stathmin 1 (Phospho-Ser15) Antibody. The picture on the right is blocked with the phospho peptide.)
Immunofluorescence, Immunohistochemistry, Western Blot
Purity
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HeLa cells treated with nocodazole, using Stathmin 1 (Phospho-Ser37) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using Stathmin 1 (Phospho-Ser37) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from 293 cells treated with serum 10% 15', using Tau (Phospho-Ser356) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using Tau (Phospho-Ser356) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from mouse brain, using Tau (Phospho-Ser422) Antibody. The lane on the left is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using Tau (Phospho-Ser422) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from NIH/3T3 cells treated with forskolin 40 muM 30', using VASP (Phospho-Ser157) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human tonsil, using VASP (Phospho-Ser157) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from RAW264.7 cells, using VASP (Phospho-Ser238) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human tonsil, using VASP (Phospho-Ser238) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from HepG2 cells treated with Na3VO4 0.3nM 40', using VEGFR2 (Phospho-Tyr1214) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using VEGFR2 (Phospho-Tyr1214) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from SK-OV3 cells, using VEGFR2 (Phospho-Tyr951) Antibody. The lane on the left is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using VEGFR2 (Phospho-Tyr951) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
WB (Western Blot) (Western blot analysis of lysates from COS7 cells treated with UV 15', using Catenin-beta (Phospho-Tyr489) Antibody. The lane on the right is blocked with the phospho peptide.)
IHC (Immunohistochemistry) (Immunohistochemistry analysis of paraffin-embedded human brain, using Catenin-beta (Phospho-Tyr489) Antibody. The picture on the right is blocked with the phospho peptide.)
Purified from rabbit antiserum by affinity-chromatography using phospho peptide. The antibody against non-phospho peptide was removed by chromatography using corresponding non-phospho peptide.
Pricing
What Are Phospho Antibodies?
Protein phosphorylation is a process where a phosphate group is added to certain amino acid residues of a protein – usually serine (S), threonine (T), or tyrosine (Y) - by enzymes called kinases. This process is integral in controlling cellular signaling, cellular growth, and other biological functions.
Our catalog includes a wide range of phospho-specific antibodies that can accurately detect this important marker. They perform strongly in widely-used laboratory applications such as Western blot, flow cytometry, immunohistochemistry, and immunofluorescence microscopy. We value your trust in us and are committed to providing top-quality products and services. All of our antibodies are guaranteed to work for the applications and species indicated on our website & associated product pages.
What Are The Key Applications of Phospho Antibodies?
1. Western Blotting
One of the first steps a researcher can take in utilizing these phospho-specific antibodies, is to check if the antibody works using a technique referred to as “Western blot”. For those unfamiliar, Western Blot aids in showing whether the protein that the antibody recognizes is appearing at the correct/expected size. These phospho-specific antibodies should also be able to detect changes in the target protein’s phosphorylation (on/off state) when cells are stimulated in certain ways.
2. Staining of Fixed Cells (Immunocytochemistry)
Another routine use of these phospho-specific antibodies, is to test if the antibody is able to demonstrate similar performance when used on fixed cells (intact cells that have been preserved) as it did in the Western blot tests. It is an important aspect in many cases to confirm that the antibody works in actual intact cell samples. Ideally, the method used for cellular fixation should be the same as what is used in pathology labs (like using 10% formalin). To check if the antibody works well in tissue sections (FFPE), researchers will often test it on fixed cells that are processed similar to tissue samples.
3. Specificity Tests Using Peptides
In order to make sure that the antibody is only binding to the right target:
Laboratory technicians will mix the antibody with phospho-peptides (short segments of the protein containing the phosphate group modification).
If the antibody signal disappears, it is confirmation that it is binding to the correct phosphorylated location.
A more robust test is to use both the phosphorylated and non-phosphorylated (dephosphorylated) versions of the protein. The antibody should react only with the phosphorylated one.
Another method sometimes utilized is to treat the sample with an enzyme, such as alkaline phosphatase, that specifically removes phosphate groups. If the antibody signal disappears after this, it also confirms specificity.
4. Genetic Confirmation
As a final step, scientists can genetically manipulate the nucleotide sequence and alter the target protein by removing the exact site where phosphorylation happens. If the antibody no longer appears to detect the modified protein, it is strong evidence supporting the antibody being specific for that phosphorylated site.
Why Buy Phospho Antibodies Through Us?
The production laboratory adheres to strict and consistent protocols prior to releasing any of these phospho-specific antibodies:
Standard methods and proper controls in all tests to ensure high quality.
These antibodies are tested and validated in different cell types and species.
High quality control criterion to ensure each batch is consistent, so you will obtain reliable results every time.
FAQ
1. What Are Phospho-Specific Antibodies?
Phospho-specific antibodies are made to detect proteins only when they have a phosphate group linked to a specific amino acid residue. This empowers scientists understand if a protein is "turned on" or active, based on its phosphorylation state.
2. How to Detect Phosphorylated Proteins in a Western Blot?
To find out if a protein is phosphorylated using Western blot:
Use a phospho-specific antibody that binds only to the phosphorylated form of the protein.
You can also use a “regular” antibody for the same amino acid sequence of the protein that the phospho-specific antibody is binding to (but in this case, this antibody will not bind if there is a phosphate group present) in order to compare how much of it is phosphorylated versus how much is non-phosphorylated (or “total” protein, if the “normal” antibody’s epitopes are non-phospho-site-specific).
3. How to Choose the Best Antibody?
Here are some simple tips to help you pick the right antibody:
Know your target
Match your sample characteristics
Confirm the intended use is appropriate
Check “host” and “type”
Check the “quality” of the presented data/images
Appraise whether the available validation meets your needs
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