| Host: | Mouse | 
| Applications: | ELISA/FC/IF/IHC | 
| Reactivity: | Human/Chimpanzee/Monkey/Mouse/Rat | 
| Note: | STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. | 
| Short Description : | Mouse monoclonal antibody anti-p21/WAF1 is suitable for use in ELISA, Flow Cytometry, Immunofluorescence and Immunohistochemistry research applications. | 
| Clonality : | Monoclonal | 
| Clone ID : | WA-1 | 
| Conjugation: | Unconjugated | 
| Isotype: | IgG1k | 
| Formulation: | PBS with 0.02% Sodium Azide. | 
| Purification: | Affinity purified from tissue culture. | 
| Concentration: | Can be provided as 100 µg/mL, 500 µg/mL or 1mg/mL. | 
| Dilution Range: | ELISA (solid phase: 0, 1-100 µg/ml; tracer: 0, 001-100 µg/ml for 30 min at RT). Flow Cytometry (0, 5-1, 0 µg/million cells in 0, 1 ml). Immunofluorescence (1-2 µg/ml).Immunohistology (1-2 µg/ml for 30 min at RT; requires boiling tissue sections in 10 | 
| Storage Instruction: | Store for up to 1 year at 2-8°C upon receipt. | 
| Gene Symbol: | CDKN1A | 
| Gene ID: | 1026 | 
| Uniprot ID: | CDN1A_HUMAN | 
| Immunogen: | A BALB/c mouse was immunized with human p21 protein. Fusion partner: Sp2/0. | 
| Tissue Specificity | Expressed in all adult tissues, with 5-fold lower levels observed in the brain. | 
| 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. Phosphorylation of Thr-145 by PIM2 enhances CDKN1A stability and inhibits cell proliferation. Phosphorylation of Thr-145 by PIM1 results in the relocation of CDKN1A to the cytoplasm and enhanced CDKN1A protein stability. UV radiation-induced phosphorylation at Thr-80 by LKB1 and at Ser-146 by NUAK1 leads to its degradation. 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. Ubiquitination at Ser-2 leads to degradation by the proteasome pathway. Ubiquitinated by RNF114.leading to proteasomal degradation. Acetylation leads to protein stability. Acetylated in vitro on Lys-141, Lys-154, Lys-161 and Lys-163. Deacetylation by HDAC1 is prevented by competitive binding of C10orf90/FATS to HDAC1. | 
| Function | Plays an important role in controlling cell cycle progression and DNA damage-induced G2 arrest. Involved in p53/TP53 mediated inhibition of cellular proliferation in response to DNA damage. Also involved in p53-independent DNA damage-induced G2 arrest mediated by CREB3L1 in astrocytes and osteoblasts. 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. Inhibits DNA synthesis by DNA polymerase delta by competing with POLD3 for PCNA binding. Negatively regulates the CDK4- and CDK6-driven phosphorylation of RB1 in keratinocytes, thereby resulting in the release of E2F1 and subsequent transcription of E2F1-driven G1/S phase promoting genes. | 
| Protein Name | Cyclin-Dependent Kinase Inhibitor 1Cdk-Interacting Protein 1Melanoma Differentiation-Associated Protein 6Mda-6P21 | 
| Database Links | Reactome: R-HSA-187577Reactome: R-HSA-198323Reactome: R-HSA-2559582Reactome: R-HSA-2559586Reactome: R-HSA-5674400Reactome: R-HSA-6785807Reactome: R-HSA-6804116Reactome: R-HSA-69202Reactome: R-HSA-69231Reactome: R-HSA-69563Reactome: R-HSA-69656Reactome: R-HSA-69895Reactome: R-HSA-8852276Reactome: R-HSA-8866911Reactome: R-HSA-8878166Reactome: R-HSA-8941855Reactome: R-HSA-8951664Reactome: R-HSA-9616222Reactome: R-HSA-9617828Reactome: R-HSA-9661069Reactome: R-HSA-9702518Reactome: R-HSA-9703465Reactome: R-HSA-9725370Reactome: R-HSA-9755511Reactome: R-HSA-9825892 | 
| Cellular Localisation | CytoplasmNucleus | 
| Alternative Antibody Names | Anti-Cyclin-Dependent Kinase Inhibitor 1 antibodyAnti-Cdk-Interacting Protein 1 antibodyAnti-Melanoma Differentiation-Associated Protein 6 antibodyAnti-Mda-6 antibodyAnti-P21 antibodyAnti-CDKN1A antibodyAnti-CAP20 antibodyAnti-CDKN1 antibodyAnti-CIP1 antibodyAnti-MDA6 antibodyAnti-PIC1 antibodyAnti-SDI1 antibodyAnti-WAF1 antibody | 
Information sourced from Uniprot.org
 
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