• Human B-cell lymphoma stained with anti- p27 antibody using peroxidase-conjugate and DAB chromogen. Note nuclear staining of tumor cells.

Anti-CDKN1B antibody [SX53G8] (STJ180205)

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STJ180205

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Host: Mouse
Applications: IHC-P
Reactivity: Human
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-CDKN1B is suitable for use in Immunohistochemistry research applications.
Clonality: Monoclonal
Clone ID: SX53G8
Conjugation: Unconjugated
Isotype: IgG1/Kappa
Formulation: Tris-HCI buffer containing stabilizing protein (BSA) and <0.1% ProClin
Purification: Affinity purified
Dilution Range: 1:50‐200
Storage Instruction: Store at 2‐8°C for up to 24 months. Predilute: Ready to use, no reconstitution necessary. Concentrate: Use dilution range and appropriate lab‐standardized diluent. Stability after dilution: 7 days at 24°C, 3 months at 2‐8°C, 6months at ‐20°C.
Gene Symbol: CDKN1B
Gene ID: 1027
Uniprot ID: CDN1B_HUMAN
Specificity: Positive control: Colon carcinoma
Immunogen: Purified glutathione S-transferase (GST)-p27Kip1 fusion protein
Tissue Specificity Expressed in kidney (at protein level). Expressed in all tissues tested. Highest levels in skeletal muscle, lowest in liver and kidney.
Post Translational Modifications Phosphorylated.phosphorylation occurs on serine, threonine and tyrosine residues. Phosphorylation on Ser-10 is the major site of phosphorylation in resting cells, takes place at the G(0)-G(1) phase and leads to protein stability. Phosphorylation on other sites is greatly enhanced by mitogens, growth factors, cMYC and in certain cancer cell lines. The phosphorylated form found in the cytoplasm is inactivate. Phosphorylation on Thr-198 is required for interaction with 14-3-3 proteins. Phosphorylation on Thr-187, by CDK1 and CDK2 leads to protein ubiquitination and proteasomal degradation. Tyrosine phosphorylation promotes this process. Phosphorylation by PKB/AKT1 can be suppressed by LY294002, an inhibitor of the catalytic subunit of PI3K. Phosphorylation on Tyr-88 and Tyr-89 has no effect on binding CDK2, but is required for binding CDK4. Dephosphorylated on tyrosine residues by G-CSF. Ubiquitinated.in the cytoplasm by the KPC complex (composed of RNF123/KPC1 and UBAC1/KPC2) and, in the nucleus, by SCF(SKP2). The latter requires prior phosphorylation on Thr-187. Ubiquitinated.by a TRIM21-containing SCF(SKP2)-like complex.leads to its degradation. Subject to degradation in the lysosome. Interaction with SNX6 promotes lysosomal degradation.
Function Important regulator of cell cycle progression. Inhibits the kinase activity of CDK2 bound to cyclin A, but has little inhibitory activity on CDK2 bound to SPDYA. Involved in G1 arrest. Potent inhibitor of cyclin E- and cyclin A-CDK2 complexes. Forms a complex with cyclin type D-CDK4 complexes and is involved in the assembly, stability, and modulation of CCND1-CDK4 complex activation. Acts either as an inhibitor or an activator of cyclin type D-CDK4 complexes depending on its phosphorylation state and/or stoichometry.
Protein Name Cyclin-Dependent Kinase Inhibitor 1b
Cyclin-Dependent Kinase Inhibitor P27
P27kip1
Database Links Reactome: R-HSA-187577
Reactome: R-HSA-198323
Reactome: R-HSA-2559582
Reactome: R-HSA-2559586
Reactome: R-HSA-5625900
Reactome: R-HSA-5674400
Reactome: R-HSA-6804116
Reactome: R-HSA-69202
Reactome: R-HSA-69231
Reactome: R-HSA-69563
Reactome: R-HSA-69656
Reactome: R-HSA-8849470
Reactome: R-HSA-9607240
Reactome: R-HSA-9617828
Reactome: R-HSA-9634638
Reactome: R-HSA-9661069
Cellular Localisation Nucleus
Cytoplasm
Endosome
Nuclear And Cytoplasmic In Quiescent Cells
Akt- Or Rsk-Mediated Phosphorylation On Thr-198
Binds 14-3-3
Translocates To The Cytoplasm And Promotes Cell Cycle Progression
Mitogen-Activated Uhmk1 Phosphorylation On Ser-10 Also Results In Translocation To The Cytoplasm And Cell Cycle Progression
Phosphorylation On Ser-10 Facilitates Nuclear Export
Translocates To The Nucleus On Phosphorylation Of Tyr-88 And Tyr-89
Colocalizes At The Endosome With Snx6
This Leads To Lysosomal Degradation
Alternative Antibody Names Anti-Cyclin-Dependent Kinase Inhibitor 1b antibody
Anti-Cyclin-Dependent Kinase Inhibitor P27 antibody
Anti-P27kip1 antibody
Anti-CDKN1B antibody
Anti-KIP1 antibody
Anti-p27 antibody

Information sourced from Uniprot.org

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