PRODUCT
Summary
p21 (Cip1) antibody recognizes p21Cip1 protein, a cyclin-dependent kinase inhibitor with a predicted molecular weight of 18 kDa. p21 is a major downstream regulator of p53 activity in response to DNA damage to control cell cycle arrest. p21 also interacts with proliferating cell nuclear antigen (PCNA) to inhibit PCNA-dependent S-phase DNA synthesis.
APPLICATION
Application Note
*Optimal dilutions/concentrations should be determined by the researcher.
Application |
Recommended Dilution |
1:500-1:3000 |
1:100-1:1000 |
Assay dependent |
Assay dependent |
1:100-1:500 |
Not tested in other applications.
Calculated MW
Positive Control
HCT116 (30 μM Cisplatin treatment for 24 hr) , HCT116 (30 μM Cisplatin treatment for 48 hr)
Predict Reactivity
Sheep, Bovine, Cat, Rhesus Monkey(>80% identity)
PROPERTIES
Form
Liquid
Buffer
PBS
Preservative
No preservative
Storage
Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Concentration
1.45 mg/ml (Please refer to the vial label for the specific concentration.)
Antigen Species
Human
Immunogen
Recombinant protein encompassing a sequence within the center region of human p21 Cip1. The exact sequence is proprietary.
Purification
Affinity purified by Protein A.
Conjugation
Unconjugated
RRID
AB_2888121
Note
For laboratory research use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
Purchasers shall not, and agree not to enable third parties to, analyze, copy, reverse engineer or otherwise attempt to determine the structure or sequence of the product.
TARGET
Synonyms
cyclin dependent kinase inhibitor 1A , CAP20 , CDKN1 , CIP1 , MDA-6 , P21 , SDI1 , WAF1 , p21CIP1
Cellular Localization
Cytoplasm , Nucleus
Background
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. [provided by RefSeq]
Database
Research Area
DATA IMAGES
|
GTX629543 WB Image
Wild-type (WT) and p21 Cip1 knockout (KO) HeLa cell extracts (30 μg) were separated by 15% SDS-PAGE, and the membrane was blotted with p21 Cip1 antibody [GT1032] (GTX629543) diluted at 1:500. The HRP-conjugated anti-mouse IgG antibody (GTX213111-01) was used to detect the primary antibody, and the signal was developed with Trident ECL plus-Enhanced.
|
|
GTX629543 WB Image
p21 Cip1 antibody [GT1032] detects p21 Cip1 protein by western blot analysis. A. 30 μg HCT116 whole cell lysate/extract (untreated) B. 30 μg HCT116 whole cell lysate/extract (30 μM Cisplatin treatment for 24 hr) C. 30 μg HCT116 whole cell lysate/extract (30 μM Cisplatin treatment for 48 hr) 15% SDS-PAGE p21 Cip1 antibody [GT1032] (GTX629543) dilution: 1:1000 The HRP-conjugated anti-mouse IgG antibody (GTX213111-01) was used to detect the primary antibody.
|
|
GTX629543 IP Image
p21 Cip1 antibody [GT1032] immunoprecipitates CDKN1A protein in IP experiments. IP samples: HCT-116 whole cell extract treat with 30uM cisplatin for 48 hr A. 30 μg HCT-116 whole cell extract treat with 30uM cisplatin for 48 hr B. Control with 4 μg of preimmune Mouse IgG C. Immunoprecipitation of CDKN1A protein by 4 μg p21 Cip1 antibody [GT1032] (GTX629543) 15 % SDS-PAGE The immunoprecipitated CDKN1A protein was detected by p21 Cip1 antibody [GT1032] (GTX629543) diluted at 1:1000. [EasyBlot anti-mouse IgG (GTX221667-01) was used as a secondary reagent]
|
|
GTX629543 ICC/IF Image
p21 Cip1 antibody [GT1032] detects p21 Cip1 protein at nucleus by immunofluorescent analysis.Sample: Mock and treated HCT116 cells were fixed in 4% paraformaldehyde at RT for 15 min.Green: p21 Cip1 stained by p21 Cip1 antibody [GT1032] (GTX629543) diluted at 1:500.Blue: Hoechst 33342 staining.Scale bar= 10 μm.
|
|
GTX629543 ICC/IF Image
p21 Cip1 antibody [GT1032] detects p21 Cip1 protein at nucleus by immunofluorescent analysis. Sample: MCF7 cells were fixed in 4% paraformaldehyde at RT for 15 min. Green: CDK4 protein stained by CDK4 antibody (GTX102993) diluted at 1:1000. Red: p21 Cip1 protein stained by p21 Cip1 antibody [GT1032] (GTX629543) diluted at 1:500. Blue: Hoechst 33342 staining.
|
|
GTX629543 FACS Image
p21 Cip1 antibody [GT1032] (GTX629543) detects p21 Cip1 by flow cytometry analysis. Sample: HepG2 cell. Black: Unlabelled sample was used as a control. Red: p21 Cip1 antibody [GT1032] (GTX629543) dilution: 1:50. Acquisition of 20,000 events were collected for FACS analysis.
|
|
GTX629543 IHC-P Image
p21 Cip1 antibody [GT1032] detects p21 Cip1 protein at nucleus by immunohistochemical analysis.Sample: Paraffin-embedded human lung cancer.p21 Cip1 stained by p21 Cip1 antibody [GT1032] (GTX629543) diluted at 1:200.Antigen Retrieval: Citrate buffer, pH 6.0, 15 min
|
|
GTX629543 WB Image
The data was published in the journal PLoS One in 2015. PMID: 25961745
|
|
GTX629543 WB Image
The data was published in the journal PLoS One in 2015. PMID: 25961745
|
|
GTX629543 WB Image
The data was published in the journal PLoS One in 2015. PMID: 25961745
|
REFERENCE
REVIEW
p21 Cip1 antibody [GT1032]
Cat. No. GTX629543
Rating
|
|
( Average 4.5 based on 4 users reviews)
|
Application
Western Blot(WB)
|
|
( Average 4.3 based on 3 users reviews)
|
Immunocytochemistry/ Immunofluorescence(ICC/IF)
|
|
( Average 5 based on 1 users reviews)
|
Date :
Anonymous submitted on 14-Oct-2020
Application Tested :
WB
Sample Species :
Hu
Sample :
HepG2 cells
Amount used :
20 μg
Blocking :
5% non-fat milk in TBST, 22°C, 0.5Hr
Primary Antibody :
1:2000, 22°C, 18Hr
Date :
Anonymous submitted on 13-Mar-2019
Application Tested :
WB
Sample Species :
Hu
Sample :
KOPN79 cells
Amount used :
20 μg
Blocking :
5% skim milk in TBST, 25°C, 1Hr
Primary Antibody :
1:1000, 4°C, 16Hr
Date :
Anonymous submitted on 03-Jan-2019
Application Tested :
ICC/IF
Sample Species :
Hu
Sample :
MIA PaCa-2 cells
Blocking :
3% BSA, 25°C, 0.3Hr
Fixation :
4% paraformaldehyde
Permeabilization /Antigen retrieval :
0.8% Triton X-100 in 3% BSA
Primary Antibody :
1:100, 4°C, 16Hr
Date :
Anonymous submitted on 27-Aug-2013
Application Tested :
WB
Sample Species :
Hu
Sample :
HCT116 cells
Amount used :
30μg
Blocking :
1%BSA in PBST, 4°C, 1Hr
Primary Antibody :
1:3000, 4°C, 16Hr