Summary

Name GTF2H1
Full Name General transcription factor IIH subunit 1
Synonyms Basic transcription factor 2 62 kDa subunit, BTF2 p62, General transcription factor IIH polypeptide 1, TFIIH basal transcription factor complex p62 subunit | BTF2
Primary ID P32780
Links - -
Type protein
Relations 3
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.

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation E2F1 0.448
Publications: 2 Organism: In Vitro
+ form complex img/form-complex.png binding TFIIH 0.9
Publications: 1 Organism: Homo Sapiens