OnCo

CTR9 (RNA polymerase-associated protein CTR9 homolog) 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. Tied to Wilms tumour. 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 PAF1 complex (PAF1C) which has multiple functions during transcription by RNA polymerase II and is implicated in regulation of development and maintenance of embryonic stem cell pluripotency. PAF1C associates with RNA polymerase II through interaction with POLR2A CTD non-phosphorylated and 'Ser-2'- and 'Ser-5'-phosphorylated forms and is involved in transcriptional elongation, acting both independently and synergistically with TCEA1 and in cooperation with the DSIF complex and HTATSF1. PAF1C is required for transcription of Hox and Wnt target genes. PAF1C is involved in haematopoiesis and stimulates transcriptional activity of KMT2A/MLL1; it promotes leukemogenesis through association with KMT2A/MLL1-rearranged oncoproteins, such as KMT2A/MLL1-MLLT3/AF9 and KMT2A/MLL1-MLLT1/ENL. PAF1C is involved in histone modifications such as ubiquitination of histone H2B and methylation on histone H3 'Lys-4' (H3K4me3). PAF1C recruits the RNF20/40 E3 ubiquitin-protein ligase complex and the E2 enzyme UBE2A or UBE2B to chromatin which mediate monoubiquitination of 'Lys-120' of histone H2B (H2BK120ub1); UB2A/B-mediated H2B ubiquitination is proposed to be coupled to transcription. Location: Nucleus speckle (UniProt). Locus 11p15.4 (HGNC).

Where it is found
  • Wilms tumour: Open Targets association 0.58 with Wilms tumour (MONDO_0006058)
Class: transcription · Gene: CTR9 · 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:"CTR9" OR ABSTRACT:"CTR9" OR TITLE:"CTR9 component of Paf1/RNA polymerase II complex" OR ABSTRACT:"CTR9 component of Paf1/RNA polymerase II complex" OR TITLE:"RNA polymerase-associated protein CTR9 homolog" OR ABSTRACT:"RNA polymerase-associated protein CTR9 homolog" OR TITLE:"KIAA0155" OR ABSTRACT:"KIAA0155" OR TITLE:"p150TSP" OR ABSTRACT:"p150TSP" OR TITLE:"SH2BP1" OR ABSTRACT:"SH2BP1") 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 CTR9, not a curated reading list.

Export

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/ctr9.json. Licence CC BY-NC 4.0.