The diverse roles of RNA polymerase II C-terminal domain phosphatase SCP1

BMB Rep. 2014 Apr;47(4):192-6. doi: 10.5483/bmbrep.2014.47.4.060.

Abstract

RNA polymerase II carboxyl-terminal domain (pol II CTD) phosphatases are a newly emerging family of phosphatases that are members of DXDX (T/V). The subfamily includes Small CTD phosphatases, like SCP1, SCP2, SCP3, TIMM50, HSPC129 and UBLCP. Extensive study of SCP1 has elicited the diversified roles of the small C terminal domain phosphatase. The SCP1 plays a vital role in various biological activities, like neuronal gene silencing and preferential Ser5 dephosphorylation, acts as a cardiac hypertrophy inducer with the help of its intronic miRNAs, and has shown a key role in cell cycle regulation. This short review offers an explanation of the mechanism of action of small CTD phosphatases, in different biological activities and metabolic processes.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Phosphoprotein Phosphatases / metabolism*
  • Protein Structure, Tertiary
  • RNA Polymerase II / chemistry*
  • RNA Polymerase II / metabolism*
  • Signal Transduction

Substances

  • RNA Polymerase II
  • Phosphoprotein Phosphatases
  • carboxy-terminal domain phosphatase