Cell Signaling Technology

Product Pathways - Motif Antibodies

Phospho-(Ser/Thr) PKA Substrate Antibody #9621

Applications Reactivity Source
W IP IHC-P E-P All Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IHC-P=Immunohistochemistry (Paraffin)  E-P=ELISA (Peptide)
Reactivity Key: All=All species expected

Specificity / Sensitivity

Phospho-(Ser/Thr) PKA Substrate Antibody detects peptides and proteins containing a phospho-serine/threonine residue with arginine at the -3 position. It is a useful tool in identifying substrates of AGC family kinases, including PKA and PKC. It does not cross-react with the nonphosphorylated PKA substrate motif. (U.S. Patent No's.: 6,441,140; 6,982,318; 7,259,022; 7,344,714; U.S.S.N. 11,484,485; and all foreign equivalents.)

Source / Purification

Polyclonal antibodies are produced by immunizing rabbits with a synthetic phospho-PKA substrate peptide (KLH-coulpled). Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from A431 cells, untreated or calyculin A-treated, using Phospho-(Ser/Thr) PKA Substrate Antibody.

Western Blotting

Western Blotting

Western blot analysis of extracts from A431 cells, phosphorylated in vitro by protein kinase A, Erk2 or cdc2/cyclin A, plus or minus PKA inhibitor (PKI), using Phospho-(Ser/Thr) PKA Substrate Antibody.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human colon carcinoma, using Phospho-(Ser/Thr) PKA Substrate Antibody.


IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human lung carcinoma, using Phospho-(Ser/Thr) PKA Substrate Antibody.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human breast carcinoma control (left) or lambda phosphatase-treated (right), using Phsopho-(Ser/Thr) PKA Substrate Antibody.

ELISA-Peptide

ELISA-Peptide

Phospho-(Ser/Thr) PKA Substrate Antibody DELFIA® Assay: Signal-to-noise ratio of phospho- versus nonphospho-peptides. (T* and S* denote phosphorylated threonine and serine.) (DELFIA® is a registered trademark of PerkinElmer, Inc.)


Background

An important class of kinases, refered to as Arg-directed kinases or AGC-family kinases, includes cAMP-dependent protein kinase (PKA), cGMP-dependent protein kinase (PKG), protein kinase C, Akt and RSK. These kinases share a substrate specificity characterized by Arg at position -3 relative to the phosphorylated Ser or Thr (1,2). Phospho-PKA substrate-specific antibodies from Cell Signaling Technology are powerful tools for investigating the regulation of phosphorylation by PKA and other Arg-directed kinases, as well as for high throughput kinase drug discovery.

  1. Montminy, M. (1997) Annu Rev Biochem 66, 807-22.
  2. Pearson, R.B. and Kemp, B.E. (1991) Methods Enzymol 200, 62-81.

Application References

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!

Companion Products

License/Use Restrictions: Use of CST Motif Antibodies within certain methods (e.g., U.S. Patent No.'s 7,198,896 & 7,300,753) may require a license from CST. For information regarding academic licensing terms please have your technology transfer office contact CST Legal Department at CST_ip@cellsignal.com. For information regarding commerical licensing terms please contact CST Business Development at cbunker@cellsignal.com.

Product Pathways

Drug Discovery Tools

Featured Technologies

Protein Classes