Relation Results

Name	GTF2H2 View Modifications
Full Name	General transcription factor IIH subunit 2
Synonyms	Basic transcription factor 2 44 kDa subunit, BTF2 p44, General transcription factor IIH polypeptide 2, TFIIH basal transcription factor complex p44 subunit \| BTF2P44
Primary ID	Q13888
Links	- -
Type	protein
Relations	2
Function	Component of the general transcription and DNA repair factor IIH (TFIIH) core complex, which is involved in general and transcription-coupled nucleotide excision repair (NER) of damaged DNA and, when complexed to CAK, in RNA transcription by RNA polymerase II. In NER, TFIIH acts by opening DNA around the lesion to allow the excision of the damaged oligonucleotide and its replacement by a new DNA fragment. In transcription, TFIIH has an essential role in transcription initiation. When the pre-initiation complex (PIC) has been established, TFIIH is required for promoter opening and promoter escape. Phosphorylation of the C-terminal tail (CTD) of the largest subunit of RNA polymerase II by the kinase module CAK controls the initiation of transcription. The N-terminus of GTF2H2 interacts with and regulates XPD whereas an intact C-terminus is required for a successful escape of RNAP II form the promoter.