Astana Biomed Group, an authorized Abcam distributor in Central Asia

Human p21 Matched Antibody Pair Kit (ab212063)

Key features and details

  • Unlabeled capture antibody, biotin-labeled detection antibody and calibrated protein standard
  • For economical ELISA and ELISA-based assay development
  • Reacts with: Human
  • Range: 62.5 pg/ml - 4000 pg/ml

Overview

  • Product name

    Human p21 Matched Antibody Pair Kit
    See all p21 kits

  • Detection method

    Colorimetric

  • Assay type

    ELISA set

  • Sensitivity

    9.7 pg/ml

  • Range

    62.5 pg/ml - 4000 pg/ml

  • Species reactivity

    Reacts with: Human

  • Product overview

    Human p21Matched Antibody Pair Kits include a capture and a biotinylated detector antibody pair, along with a calibrated protein standard, suitable for sandwich ELISA. The Matched Antibody Pair Kit can be used to quantify native and recombinant human p21.


    Optimization of the kit reagents to sample type, immunoassay format or instrumentation may be required. Guidelines for use of this kit in a standard 96-well microplate sandwich ELISA using HRP/TMB system of colorimetric detection is described in this assay procedure for the purposes of quantification.


    Protocol information and tips on the use of the Matched Antibody Pair kits for sandwich ELISA can be found on our website. An accessory pack can be purchased which includes buffer reagents required to perform 10 x 96-well plate sandwich ELISAs (ab210905).


    For additional information on the performance of the antibody pair used in this kit, please see our equivalent SimpleStep ELISA kit ab171579. Please note that while the antibody pair is the same provided in the corresponding SimpleStep ELISA Kit, due to differences in their formulation, this antibody pair cannot be used with the consumables provided with our SimpleStep ELISA Kits.

  • Tested applications

    Suitable for: ELISA, IAmore details

  • Platform

    Reagents

Properties

  • Storage instructions

    Store at -20°C. Please refer to protocols.
  • Components 10 x 96 tests 5 x 96 tests
    Human p21 Capture Antibody 2 x 50µg 1 x 50µg
    Human p21 Detector Antibody 2 x 12.5µg 1 x 12.5µg
    Human p21 Lyophilized Protein 2 vials 1 vial

  • Research areas

  • 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.

  • Tissue specificity

    Expressed in all adult human tissues, with 5-fold lower levels observed in the brain.

  • Sequence similarities

    Belongs to the CDI family.

  • Domain

    The PIP-box K+4 motif mediates both the interaction with PCNA and the recuitment of the DCX(DTL) complex: while the PIP-box interacts with PCNA, the presence of the K+4 submotif, recruits the DCX(DTL) complex, leading to its ubiquitination.
    The C-terminal is required for nuclear localization of the cyclin D-CDK4 complex.

  • Post-translational
    modifications

    Phosphorylation of Thr-145 by Akt or of Ser-146 by PKC impairs binding to PCNA. Phosphorylation at Ser-114 by GSK3-beta enhances ubiquitination by the DCX(DTL) complex.
    Ubiquitinated by MKRN1; leading to polyubiquitination and 26S proteasome-dependent degradation. Ubiquitinated by the DCX(DTL) complex, also named CRL4(CDT2) complex, leading to its degradation during S phase or following UV irradiation. Ubiquitination by the DCX(DTL) complex is essential to control replication licensing and is PCNA-dependent: interacts with PCNA via its PIP-box, while the presence of the containing the 'K+4' motif in the PIP box, recruit the DCX(DTL) complex, leading to its degradation.

  • Cellular localization

    Cytoplasm. Nucleus.
  • Information by UniProt

  • Alternative names

    • CAP20
    • CDK-interacting protein 1
    • CDKI
    • CDKN1
    • Cdkn1a
    • CDN1A_HUMAN
    • CIP1
    • Cyclin Dependent Kinase Inhibitor 1A
    • Cyclin-dependent kinase inhibitor 1
    • Cyclin-dependent kinase inhibitor 1A (P21)
    • Cyclin-dependent kinase inhibitor 1A (p21, Cip1)
    • DNA Synthesis Inhibitor
    • MDA-6
    • MDA6
    • Melanoma differentiation-associated protein
    • Melanoma differentiation-associated protein 6
    • p21
    • P21 protein
    • p21CIP1
    • p21Cip1/Waf1
    • p21WAF
    • PIC1
    • SDI1
    • SLC12A9
    • WAF1
    • Wild type p53 activated fragment 1
    • Wild type p53 activated fragment 1 (WAF1)
    • Wildtype p53-activated fragment 1
    see all

  • Database links

    Images

    • Human p21 standard curve
      Human p21 standard curve

      Standard calibration curve. Background subtracted values are graphed.

    • Sandwich ELISA - Human p21 Matched Antibody Pair Kit (ab212063)
      Sandwich ELISA - Human p21 Matched Antibody Pair Kit (ab212063)
      To learn more about the advantages of recombinant antibodies see here.

    Please note: All products are "FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES"
    For licensing inquiries, please contact partnerships@abcam.com

    Alternative products to Human p21 Matched Antibody Pair Kit (ab212063)

    © 2021 Astana Biomed Group LLP. All rights reserved.