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cpath:CPATH-69396 | http://www.biopax.org/relea... | Cyclin-dependent kinase 9 | lld:biogrid |
cpath:CPATH-69396 | http://www.biopax.org/relea... | CDK9_MOUSE | lld:biogrid |
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cpath:CPATH-69396 | http://www.biopax.org/relea... | 2.7.11.22 | lld:biogrid |
cpath:CPATH-69396 | http://www.biopax.org/relea... | 2.7.11.23 | lld:biogrid |
cpath:CPATH-69396 | http://www.biopax.org/relea... | Cell division protein kinase 9 | lld:biogrid |
cpath:CPATH-69396 | http://www.biopax.org/relea... | FUNCTION: Member of the cyclin-dependent kinase pair (CDK9/cyclin- T) complex, also called positive transcription elongation factor b (P-TEFb), which facilitates the transition from abortive to production elongation by phosphorylating the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNAP II), SUPT5H and RDBP. The CDK9/cyclin-K complex has also a kinase activity toward CTD of RNAP II and can substitute for P-TEFb in vitro (By similarity). CATALYTIC ACTIVITY: ATP + a protein = ADP + a phosphoprotein. CATALYTIC ACTIVITY: ATP + [DNA-directed RNA polymerase] = ADP + [DNA-directed RNA polymerase] phosphate. SUBUNIT: Associates with CCNT1/cyclin-T1 to form P-TEFb. P-TEFb forms a complex with AFF4/AF5Q31. Also associates with CCNK/cyclin-K. Component of a complex which is at least composed of HTATSF1/Tat-SF1, P-TEFb complex, RNA pol II, SUPT5H, and NCL/nucleolin. Component of the 7SK snRNP complex at least composed of P-TEFb (composed of CDK9 and CCNT1/cyclin-T1), HEXIM1, HEXIM2, BCDIN3, SART3 proteins and 7SK and U6 snRNAs (By similarity). SUBCELLULAR LOCATION: Nucleus (By similarity). ALTERNATIVE PRODUCTS: Event=Alternative splicing; Named isoforms=3; Name=1; IsoId=Q99J95-1; Sequence=Displayed; Name=2; IsoId=Q99J95-2; Sequence=VSP_016289; Note=No experimental confirmation available; Name=3; IsoId=Q99J95-3; Sequence=VSP_016290; TISSUE SPECIFICITY: Expressed at high levels in brain and kidney. SIMILARITY: Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. CDC2/CDKX subfamily. SIMILARITY: Contains 1 protein kinase domain. SEQUENCE CAUTION: Sequence=BAE25966.1; Type=Frameshift; Positions=46; COPYRIGHT: Protein annotation is derived from the UniProt Consortium (http://www.uniprot.org/). Distributed under the Creative Commons Attribution-NoDerivs License. | lld:biogrid |
cpath:CPATH-69396 | skos:exactMatch | uniprot-protein:Q99J95 | lld:mappings |
cpath:CPATH-69396 | skos:closeMatch | entrez-gene:107951 | lld:mappings |
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