Tchem CCND1 G1/S-specific cyclin-D1

Protein Summary

Description

Regulatory component of the cyclin D1-CDK4 (DC) complex that phosphorylates and inhibits members of the retinoblastoma (RB) protein family including RB1 and regulates the cell-cycle during G(1)/S transition. Phosphorylation of RB1 allows dissociation of the transcription factor E2F from the RB/E2F complex and the subsequent transcription of E2F target genes which are responsible for the progression through the G(1) phase. Hypophosphorylates RB1 in early G(1) phase. Cyclin D-CDK4 complexes are major integrators of various mitogenenic and antimitogenic signals. Also substrate for SMAD3, phosphorylating SMAD3 in a cell-cycle-dependent manner and repressing its transcriptional activity. Component of the ternary complex, cyclin D1/CDK4/CDKN1B, required for nuclear translocation and activity of the cyclin D-CDK4 complex. Exhibits transcriptional corepressor activity with INSM1 on the NEUROD1 and INS promoters in a cell cycle-independent manner. The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance throughout the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin forms a complex with and functions as a regulatory subunit of CDK4 or CDK6, whose activity is required for cell cycle G1/S transition. This protein has been shown to interact with tumor suppressor protein Rb and the expression of this gene is regulated positively by Rb. Mutations, amplification and overexpression of this gene, which alters cell cycle progression, are observed frequently in a variety of tumors and may contribute to tumorigenesis. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• P24385
• Q6LEF0

Gene Name

• CCND1

Ensembl ID

• ENST00000227507
• ENSP00000227507
• ENSG00000110092

Symbol

• BCL1
• PRAD1
• BCL1
• PRAD1
• U21B31
• D11S287E

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
biological process	1
chemical	1
hub protein	1
transcription factor perturbation	1
biological term	0.99

Protein Classes

PANTHER Classes

Protein / Enzyme Modulator / Kinase Modulator / Kinase Activator / G1/s-specific Cyclin-d1

DTO Classes

Protein / Enzyme Modulator / Kinase Modulator / Kinase Activator / G1/s-specific Cyclin-d1

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 8039.16   (req: < 5)

Gene RIFs: 1424   (req: <= 3)

Antibodies: 1839   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 8039.16   (req: >= 5)

Gene RIFs: 1424   (req: > 3)

Antibodies: 1839   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 50

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 1