GTF2H2

General transcription factor IIH, polypeptide 2, 44kDa
PDB rendering based on 1z60.
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 1Z60​
Identifiers
Symbols	GTF2H2 ; BTF2; BTF2P44; T-BTF2P44; TFIIH; p44
External IDs	OMIM: 601748 MGI: 1345669 HomoloGene: 1159 GeneCards: GTF2H2 Gene
Gene ontology Molecular function • nucleic acid binding • transcription factor activity, sequence-specific DNA binding • protein kinase activity • protein binding • DNA-dependent ATPase activity • translation factor activity, RNA binding • zinc ion binding • RNA polymerase II carboxy-terminal domain kinase activity • protein N-terminus binding Cellular component • core TFIIH complex • nucleoplasm • holo TFIIH complex Biological process • nucleotide-excision repair, DNA damage removal • G-protein coupled receptor internalization • DNA repair • transcription-coupled nucleotide-excision repair • nucleotide-excision repair • regulation of transcription, DNA-templated • transcription from RNA polymerase I promoter • transcription initiation from RNA polymerase I promoter • transcription elongation from RNA polymerase I promoter • termination of RNA polymerase I transcription • transcription from RNA polymerase II promoter • transcription initiation from RNA polymerase II promoter • transcription elongation from RNA polymerase II promoter • 7-methylguanosine mRNA capping • translation • protein phosphorylation • response to UV • gene expression • viral process • regulation of gene expression, epigenetic • negative regulation of gene expression, epigenetic • positive regulation of viral transcription Sources: Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	2966	23894
Ensembl	ENSG00000145736	ENSMUSG00000021639
UniProt	Q13888	Q9JIB4
RefSeq (mRNA)	NM_001515	NM_022011
RefSeq (protein)	NP_001506	NP_071294
Location (UCSC)	Chr 5: 71.03 – 71.07 Mb	Chr 13: 100.46 – 100.49 Mb
PubMed search

General transcription factor IIH subunit 2 is a protein that in humans is encoded by the GTF2H2 gene.^[1][2]

Function

This gene is part of a 500 kb inverted duplication on chromosome 5q13. This duplicated region contains at least four genes and repetitive elements which make it prone to rearrangements and deletions. The repetitiveness and complexity of the sequence have also caused difficulty in determining the organization of this genomic region. This gene is within the telomeric copy of the duplication. Deletion of this gene sometimes accompanies deletion of the neighboring SMN1 gene in spinal muscular atrophy (SMA) patients but it is unclear if deletion of this gene contributes to the SMA phenotype. This gene encodes the 44 kDa subunit of RNA polymerase II transcription initiation factor IIH which is involved in basal transcription and nucleotide excision repair. Transcript variants for this gene have been described, but their full length nature has not been determined. A second copy of this gene within the centromeric copy of the duplication has been described in the literature. It is reported to be different by either two or four base pairs; however, no sequence data is currently available for the centromeric copy of the gene.^[2]

Interactions

GTF2H2 has been shown to interact with GTF2H5,^[3][4] XPB^[3][5] and ERCC2.^[4][6]

See also

• Transcription Factor II H

References

1. Humbert S, van Vuuren H, Lutz Y, Hoeijmakers JH, Egly JM, Moncollin V (June 1994). "p44 and p34 subunits of the BTF2/TFIIH transcription factor have homologies with SSL1, a yeast protein involved in DNA repair". EMBO J. 13 (10): 2393–8. PMC 395104. PMID 8194529.
2. "Entrez Gene: GTF2H2 general transcription factor IIH, polypeptide 2, 44kDa".
3. Giglia-Mari G, Coin F, Ranish JA, Hoogstraten D, Theil A, Wijgers N, Jaspers NG, Raams A, Argentini M, van der Spek PJ, Botta E, Stefanini M, Egly JM, Aebersold R, Hoeijmakers JH, Vermeulen W (July 2004). "A new, tenth subunit of TFIIH is responsible for the DNA repair syndrome trichothiodystrophy group A". Nat. Genet. 36 (7): 714–9. doi:10.1038/ng1387. PMID 15220921.
4. Vermeulen W, Bergmann E, Auriol J, Rademakers S, Frit P, Appeldoorn E, Hoeijmakers JH, Egly JM (November 2000). "Sublimiting concentration of TFIIH transcription/DNA repair factor causes TTD-A trichothiodystrophy disorder". Nat. Genet. 26 (3): 307–13. doi:10.1038/81603. PMID 11062469.
5. Marinoni JC, Roy R, Vermeulen W, Miniou P, Lutz Y, Weeda G, Seroz T, Gomez DM, Hoeijmakers JH, Egly JM (March 1997). "Cloning and characterization of p52, the fifth subunit of the core of the transcription/DNA repair factor TFIIH". EMBO J. 16 (5): 1093–102. doi:10.1093/emboj/16.5.1093. PMC 1169708. PMID 9118947.
6. Coin F, Marinoni JC, Rodolfo C, Fribourg S, Pedrini AM, Egly JM (October 1998). "Mutations in the XPD helicase gene result in XP and TTD phenotypes, preventing interaction between XPD and the p44 subunit of TFIIH". Nat. Genet. 20 (2): 184–8. doi:10.1038/2491. PMID 9771713.

Further reading

• Svejstrup JQ, Vichi P, Egly JM (1996). "The multiple roles of transcription/repair factor TFIIH". Trends Biochem. Sci. 21 (9): 346–50. doi:10.1016/s0968-0004(96)10046-3. PMID 8870499.
• Jeang KT (1998). "Tat, Tat-associated kinase, and transcription". J. Biomed. Sci. 5 (1): 24–7. doi:10.1007/BF02253352. PMID 9570510.
• Yankulov K, Bentley D (1998). "Transcriptional control: Tat cofactors and transcriptional elongation". Curr. Biol. 8 (13): R447–9. doi:10.1016/S0960-9822(98)70289-1. PMID 9651670.
• van der Steege G, Draaijers TG, Grootscholten PM, Osinga J, Anzevino R, Velonà I, Den Dunnen JT, Scheffer H, Brahe C, van Ommen GJ (1995). "A provisional transcript map of the spinal muscular atrophy (SMA) critical region". Eur. J. Hum. Genet. 3 (2): 87–95. PMID 7552146.
• Henning KA, Li L, Iyer N, McDaniel LD, Reagan MS, Legerski R, Schultz RA, Stefanini M, Lehmann AR, Mayne LV, Friedberg EC (1995). "The Cockayne syndrome group A gene encodes a WD repeat protein that interacts with CSB protein and a subunit of RNA polymerase II TFIIH". Cell 82 (4): 555–64. doi:10.1016/0092-8674(95)90028-4. PMID 7664335.
• Blau J, Xiao H, McCracken S, O'Hare P, Greenblatt J, Bentley D (1996). "Three functional classes of transcriptional activation domain". Mol. Cell. Biol. 16 (5): 2044–55. PMC 231191. PMID 8628270.
• Iyer N, Reagan MS, Wu KJ, Canagarajah B, Friedberg EC (1996). "Interactions involving the human RNA polymerase II transcription/nucleotide excision repair complex TFIIH, the nucleotide excision repair protein XPG, and Cockayne syndrome group B (CSB) protein". Biochemistry 35 (7): 2157–67. doi:10.1021/bi9524124. PMID 8652557.
• Reardon JT, Ge H, Gibbs E, Sancar A, Hurwitz J, Pan ZQ (1996). "Isolation and characterization of two human transcription factor IIH (TFIIH)-related complexes: ERCC2/CAK and TFIIH". Proc. Natl. Acad. Sci. U.S.A. 93 (13): 6482–7. doi:10.1073/pnas.93.13.6482. PMC 39049. PMID 8692841.
• Drapkin R, Le Roy G, Cho H, Akoulitchev S, Reinberg D (1996). "Human cyclin-dependent kinase-activating kinase exists in three distinct complexes". Proc. Natl. Acad. Sci. U.S.A. 93 (13): 6488–93. doi:10.1073/pnas.93.13.6488. PMC 39050. PMID 8692842.
• Zhou Q, Sharp PA (1996). "Tat-SF1: cofactor for stimulation of transcriptional elongation by HIV-1 Tat". Science 274 (5287): 605–10. doi:10.1126/science.274.5287.605. PMID 8849451.
• Parada CA, Roeder RG (1996). "Enhanced processivity of RNA polymerase II triggered by Tat-induced phosphorylation of its carboxy-terminal domain". Nature 384 (6607): 375–8. doi:10.1038/384375a0. PMID 8934526.
• Bürglen L, Seroz T, Miniou P, Lefebvre S, Burlet P, Munnich A, Pequignot EV, Egly JM, Melki J (1997). "The gene encoding p44, a subunit of the transcription factor TFIIH, is involved in large-scale deletions associated with Werdnig-Hoffmann disease". Am. J. Hum. Genet. 60 (1): 72–9. PMC 1712562. PMID 8981949.
• García-Martínez LF, Ivanov D, Gaynor RB (1997). "Association of Tat with purified HIV-1 and HIV-2 transcription preinitiation complexes". J. Biol. Chem. 272 (11): 6951–8. doi:10.1074/jbc.272.11.6951. PMID 9054383.
• Carter TA, Bönnemann CG, Wang CH, Obici S, Parano E, De Fatima Bonaldo M, Ross BM, Penchaszadeh GK, Mackenzie A, Soares MB, Kunkel LM, Gilliam TC (1997). "A multicopy transcription-repair gene, BTF2p44, maps to the SMA region and demonstrates SMA associated deletions". Hum. Mol. Genet. 6 (2): 229–36. doi:10.1093/hmg/6.2.229. PMID 9063743.
• Marinoni JC, Roy R, Vermeulen W, Miniou P, Lutz Y, Weeda G, Seroz T, Gomez DM, Hoeijmakers JH, Egly JM (1997). "Cloning and characterization of p52, the fifth subunit of the core of the transcription/DNA repair factor TFIIH". EMBO J. 16 (5): 1093–102. doi:10.1093/emboj/16.5.1093. PMC 1169708. PMID 9118947.
• Cujec TP, Cho H, Maldonado E, Meyer J, Reinberg D, Peterlin BM (1997). "The human immunodeficiency virus transactivator Tat interacts with the RNA polymerase II holoenzyme". Mol. Cell. Biol. 17 (4): 1817–23. PMC 232028. PMID 9121429.
• Rossignol M, Kolb-Cheynel I, Egly JM (1997). "Substrate specificity of the cdk-activating kinase (CAK) is altered upon association with TFIIH". EMBO J. 16 (7): 1628–37. doi:10.1093/emboj/16.7.1628. PMC 1169767. PMID 9130708.
• García-Martínez LF, Mavankal G, Neveu JM, Lane WS, Ivanov D, Gaynor RB (1997). "Purification of a Tat-associated kinase reveals a TFIIH complex that modulates HIV-1 transcription". EMBO J. 16 (10): 2836–50. doi:10.1093/emboj/16.10.2836. PMC 1169892. PMID 9184228.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.