OnCo

CCNT1 (Cyclin-T1) is a protein that switches other genes on and off. In the public catalogues it is called a cancer driver by mutation analysis of patient cohorts. Tied to Acute myeloid leukaemia. 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

Regulatory subunit of the cyclin-dependent kinase pair (CDK9/cyclin-T1) complex, also called positive transcription elongation factor B (P-TEFb), which facilitates the transition from abortive to productive elongation by phosphorylating the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNA Pol II). Required to activate the protein kinase activity of CDK9: acts by mediating formation of liquid-liquid phase separation (LLPS) that enhances binding of P-TEFb to the CTD of RNA Pol II. Serves as an essential cofactor for Tat, by promoting RNA Pol II activation, allowing transcription of viral genes. Location: Nucleus (UniProt). Locus 12q13.11-q13.12 (HGNC).

Where it is found
  • Acute myeloid leukaemia: IntOGen driver in 1 cohort (AML)
Class: transcription · Gene: CCNT1 · 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:"CCNT1" OR ABSTRACT:"CCNT1" OR TITLE:"cyclin T1" OR ABSTRACT:"cyclin T1" OR TITLE:"Cyclin-T1" OR ABSTRACT:"Cyclin-T1" OR TITLE:"CYCT1" OR ABSTRACT:"CYCT1" OR TITLE:"HIVE1" OR ABSTRACT:"HIVE1") 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 CCNT1, 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/ccnt1.json. Licence CC BY-NC 4.0.