OnCo

CCNH (Cyclin-H) is a protein that switches other genes on and off. In the public catalogues the evidence so far is association rather than a proven role. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Component of the CDK-activating kinase (CAK) complex, a master regulator of CDK activity by catalysing the activating threonine phosphorylation of CDKs. Binds and activates cyclin-dependent protein kinase CDK7, the catalytic subunit of CAK. CAK activates major mediators of cell cycle control, including CDK1, CDK2, CDK4 and CDK6, and plays a key role in regulating cell cycle progression. CAK complexed to the core-TFIIH basal transcription factor activates RNA polymerase II by serine phosphorylation of the repetitive C-terminal domain (CTD) of its large subunit (POLR2A), allowing its escape from the promoter and elongation of the transcripts. Involved in cell cycle control and in RNA transcription by RNA polymerase II. Its expression and activity are constant throughout the cell cycle. Location: Nucleus (UniProt). Locus 5q14.3 (HGNC).

Class: transcription · Gene: CCNH · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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Companion diagnostics

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Preclinical models

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Literature

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Query for this target: (TITLE:"CCNH" OR ABSTRACT:"CCNH" OR TITLE:"cyclin H" OR ABSTRACT:"cyclin H" OR TITLE:"Cyclin-H" OR ABSTRACT:"Cyclin-H" OR TITLE:"p34" OR ABSTRACT:"p34" OR TITLE:"p37" OR ABSTRACT:"p37" OR TITLE:"CycH" OR ABSTRACT:"CycH") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about CCNH, not a curated reading list.

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The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/ccnh.json. Licence CC BY-NC 4.0.