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GTF2H5
from Wikipedia
GTF2H5
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesGTF2H5, C6orf175, TFB5, TFIIH, TGF2H5, TTD, TTD-A, TTDA, bA120J8.2, TTD3, general transcription factor IIH subunit 5
External IDsOMIM: 608780; MGI: 107227; HomoloGene: 45635; GeneCards: GTF2H5; OMA:GTF2H5 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_207118

NM_181392
NM_001357804

RefSeq (protein)

NP_997001

NP_852057
NP_001344733

Location (UCSC)Chr 6: 158.17 – 158.2 MbChr 17: 6.13 – 6.14 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

General transcription factor IIH subunit 5 is a protein that in humans is encoded by the GTF2H5 gene.[5][6]

Function

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The GTF2H5(TTDA) gene encodes a small (71 amino acid) protein that stabilizes the multi-subunit transcription repair factor IIH(TFIIH). TFIIH plays a key role in a major DNA repair process, nucleotide excision repair (NER), by opening the DNA double helix after the initial recognition of damage in one strand. This step is followed by excision of the damaged region to generate a single-strand gap, and then repair synthesis, using the undamaged strand as template, to accurately fill in the gap. Disruption of the GTF2H5(TTDA) gene in a knockout mouse-model completely inactivates NER.[7] In humans, mutation in any one of four genes can give rise to the trichothiodystrophy phenotype. These genes are TTDN1, XPB, XPD and GTF2H5(TTDA).[7]

Interactions

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GTF2H5 has been shown to interact with GTF2H2[5][8] and XPB.[5]

References

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Further reading

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