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- Table of Contents
1 Citations 7 Q&As
9 Citations 2 Q&As
1 Citations 1 Q&As
Facts about Cyclin-dependent kinase inhibitor 1B.
Involved in G1 arrest. Potent inhibitor of cyclin E- and cyclin A- CDK2 complexes.
| Human | |
|---|---|
| Gene Name: | CDKN1B |
| Uniprot: | P46527 |
| Entrez: | 1027 |

| Belongs to: |
|---|
| CDI family |

CDKN1B; CDKN4; cyclin-dependent kinase inhibitor 1B (p27, Kip1); cyclin-dependent kinase inhibitor 1B; Cyclin-dependent kinase inhibitor p27; Kip1; KIP1P27KIP1; MEN1B; MEN4; p27; p27Kip1
Mass (kDA):
22.073 kDA

| Human | |
|---|---|
| Location: | 12p13.1 |
| Sequence: | 12; NC_000012.12 (12717368..12722369) |
Expressed in all tissues tested. Highest levels in skeletal muscle, lowest in liver and kidney.
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 (By similarity).





PMID: 8033212 by Polyak K., et al. Cloning of p27Kip1, a cyclin-dependent kinase inhibitor and a potential mediator of extracellular antimitogenic signals.
PMID: 7882309 by Pietenpol J.A., et al. Assignment of the human p27Kip1 gene to 12p13 and its analysis in leukemias.
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