Summary

Name CDK13
Full Name Cyclin-dependent kinase 13
Synonyms CDC2-related protein kinase 5, Cell division cycle 2-like protein kinase 5, Cell division protein kinase 13, hCDK13, Cholinesterase-related cell division controller | CDC2L, CDC2L5, CHED, KIAA1791
Primary ID Q14004
Links - -
Type protein
Relations 29
Function Cyclin-dependent kinase which displays CTD kinase activity and is required for RNA splicing. Has CTD kinase activity by hyperphosphorylating the C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit RPB1, thereby acting as a key regulator of transcription elongation. Required for RNA splicing, probably by phosphorylating SRSF1/SF2. Required during hematopoiesis. In case of infection by HIV-1 virus, interacts with HIV-1 Tat protein acetylated at 'Lys-50' and 'Lys-51', thereby increasing HIV-1 mRNA splicing and promoting the production of the doubly spliced HIV-1 protein Nef.

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation POLR2A 0.556
Publications: 25 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation EIF4B 0.254
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation EIF4EBP1 0.2
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding CyclinK/CDK13 0.914
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding CDK13 0.274
Publications: 1