J 2014

The structure and substrate specificity of human Cdk12/Cyclin K

BÖSKEN, Christian A.; Lucas FARNUNG; Corinna HINTERMAIR; Miriam Merzel SCHACHTER; Karin VOGEL- BACHMAYR et. al.

Basic information

Original name

The structure and substrate specificity of human Cdk12/Cyclin K

Authors

BÖSKEN, Christian A. (276 Germany); Lucas FARNUNG (276 Germany); Corinna HINTERMAIR (276 Germany); Miriam Merzel SCHACHTER (840 United States of America); Karin VOGEL- BACHMAYR (840 United States of America); Dalibor BLAŽEK (203 Czech Republic, guarantor, belonging to the institution); Kanchan ANAND (276 Germany); Robert P. FISHER (840 United States of America); Dirk EICK (276 Germany) and Matthias GEYER (276 Germany)

Edition

NATURE COMMUNICATIONS, London, Nature Publishing Group, 2014, 2041-1723

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10600 1.6 Biological sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

References:

Impact factor

Impact factor: 11.470

RIV identification code

RIV/00216224:14740/14:00073691

Organization unit

Central European Institute of Technology

UT WoS

000334302000008

EID Scopus

2-s2.0-84904343427

Keywords in English

RNA-POLYMERASE-II; C-TERMINAL DOMAIN; CAPPING ENZYME RECRUITMENT; CYCLIN-DEPENDENT KINASE-9; CTD CODE; P-TEFB; PROTEIN-KINASES; FISSION YEAST; CRYSTAL-STRUCTURE; IN-VIVO

Tags

International impact, Reviewed
Changed: 5/12/2014 08:02, Martina Prášilová

Abstract

In the original language

Phosphorylation of the RNA polymerase II C-terminal domain (CTD) by cyclin-dependent kinases is important for productive transcription. Here we determine the crystal structure of Cdk12/CycK and analyse its requirements for substrate recognition. Active Cdk12/CycK is arranged in an open conformation similar to that of Cdk9/CycT but different from those of cell cycle kinases. Cdk12 contains a C-terminal extension that folds onto the N- and C-terminal lobes thereby contacting the ATP ribose. The interaction is mediated by an HE motif followed by a polybasic cluster that is conserved in transcriptional CDKs. Cdk12/CycK showed the highest activity on a CTD substrate prephosphorylated at position Ser7, whereas the common Lys7 substitution was not recognized. Flavopiridol is most potent towards Cdk12 but was still 10-fold more potent towards Cdk9. T-loop phosphorylation of Cdk12 required coexpression with a Cdk-activating kinase. These results suggest the regulation of Pol II elongation by a relay of transcriptionally active CTD kinases.

Links

ED1.1.00/02.0068, research and development project
Name: CEITEC - central european institute of technology
GA14-09979S, research and development project
Name: Role Cdk12 a C-terminální domény RNA polymerázy II v transkripcně regulovaném procesu genomové nestability
Investor: Czech Science Foundation