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Phospho-P21CIP1(T57) Antibody

Peptide Affinity Purified Rabbit Polyclonal Antibody (Pab)

  • DB - Phospho-P21CIP1(T57) Antibody AP3190a
    Dot blot analysis of anti-Phospho-P21CIP1-T57 Antibody (Cat.#AP3190a) on nitrocellulose membrane. 50ng of Phospho-peptide or Non Phospho-peptide per dot were adsorbed. Antibody working concentrations are 0.5ug per ml.
  • IHC-P - Phospho-P21CIP1(T57) Antibody AP3190a
    Formalin-fixed and paraffin-embedded human cancer tissue reacted with the primary antibody, which was peroxidase-conjugated to the secondary antibody, followed by AEC staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated. BC = breast carcinoma; HC = hepatocarcinoma.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P38936
Reactivity Human
Host Rabbit
Clonality Polyclonal
Isotype Rabbit Ig
Calculated MW 18119 Da
Additional Information
Gene ID 1026
Other Names Cyclin-dependent kinase inhibitor 1, CDK-interacting protein 1, Melanoma differentiation-associated protein 6, MDA-6, p21, CDKN1A, CAP20, CDKN1, CIP1, MDA6, PIC1, SDI1, WAF1
Target/Specificity This P21CIP1 Antibody is generated from rabbits immunized with a KLH conjugated synthetic phosphopeptide corresponding to amino acid residues surrounding T57 of human P21CIP1.
Dilution DB~~1:500
Format Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification.
StorageMaintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsPhospho-P21CIP1(T57) Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Synonyms CAP20, CDKN1, CIP1, MDA6, PIC1, SDI1, WA
Function May be the important intermediate by which p53/TP53 mediates its role as an inhibitor of cellular proliferation in response to DNA damage. Binds to and inhibits cyclin-dependent kinase activity, preventing phosphorylation of critical cyclin- dependent kinase substrates and blocking cell cycle progression. Functions in the nuclear localization and assembly of cyclin D- CDK4 complex and promotes its kinase activity towards RB1. At higher stoichiometric ratios, inhibits the kinase activity of the cyclin D-CDK4 complex.
Cellular Location Cytoplasm. Nucleus.
Tissue Location Expressed in all adult tissues, with 5-fold lower levels observed in the brain
Research Areas
Citations (0)

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This gene encodes a potent cyclin-dependent kinase inhibitor. The encoded protein binds to and inhibits the activity of cyclin-CDK2 or -CDK4 complexes, and thus functions as a regulator of cell cycle progression at G1. The expression of this gene is tightly controlled by the tumor suppressor protein p53, through which this protein mediates the p53-dependent cell cycle G1 phase arrest in response to a variety of stress stimuli. This protein can interact with proliferating cell nuclear antigen (PCNA), a DNA polymerase accessory factor, and plays a regulatory role in S phase DNA replication and DNA damage repair. This protein was reported to be specifically cleaved by CASP3-like caspases, which thus leads to a dramatic activation of CDK2, and may be instrumental in the execution of apoptosis following caspase activation. Two alternatively spliced variants, which encode an identical protein, have been reported.


Scott, S.A., et al., Leuk. Res. 28(12):1293-1301 (2004).
Amini, S., et al., J. Biol. Chem. 279(44):46046-46056 (2004).
Chen, T., et al., Cancer Res. 64(20):7412-7419 (2004).
Sieburg, M., et al., J. Virol. 78(19):10399-10409 (2004).
Giraud, S., et al., Oncogene 23(44):7391-7398 (2004).

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$ 295.00
$ 99.00
Cat# AP3190a
(40 western blots)
Availability: In Stock
Bulk Size
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