CCNH

The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through 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 CDK7 kinase and ring finger protein MAT1. The kinase complex is able to phosphorylate CDK2 and CDC2 kinases, thus functions as a CDK-activating kinase (CAK). This cyclin and its kinase partner are components of TFIIH, as well as RNA polymerase II protein complexes. They participate in two different transcriptional regulation processes, suggesting an important link between basal transcription control and the cell cycle machinery. A pseudogene of this gene is found on chromosome 4. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Nov 2010]

Description

Cyclin H

Tissue specificity

Low tissue specificity

Subcell location

Nucleoplasm

Predicted location

Intracellular

Protein family

Cancer-related genes
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

5 (87318416 - 87412930)

Ensembl ID

ENSG00000134480  (ver. 103.38)

Orthologs

Mouse Ccnh: ENSMUSG00000021548

UniProt

P51946

neXtProt

NX_P51946

Human splice variants
Mouse splice variants

Protein structure