ID   A0A3B3QR48_9TELE        Unreviewed;       200 AA.
AC   A0A3B3QR48;
DT   05-DEC-2018, integrated into UniProtKB/TrEMBL.
DT   05-DEC-2018, sequence version 1.
DT   27-MAR-2024, entry version 23.
DE   RecName: Full=General transcription factor IIH subunit 3 {ECO:0000256|RuleBase:RU368090};
DE   AltName: Full=General transcription factor IIH polypeptide 3 {ECO:0000256|RuleBase:RU368090};
OS   Paramormyrops kingsleyae.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Osteoglossocephala;
OC   Osteoglossomorpha; Osteoglossiformes; Mormyridae; Paramormyrops.
OX   NCBI_TaxID=1676925 {ECO:0000313|Ensembl:ENSPKIP00000008075.1, ECO:0000313|Proteomes:UP000261540};
RN   [1] {ECO:0000313|Ensembl:ENSPKIP00000008075.1}
RP   IDENTIFICATION.
RG   Ensembl;
RL   Submitted (SEP-2023) to UniProtKB.
CC   -!- FUNCTION: Component of the general transcription and DNA repair factor
CC       IIH (TFIIH) core complex, which is involved in general and
CC       transcription-coupled nucleotide excision repair (NER) of damaged DNA
CC       and, when complexed to CAK, in RNA transcription by RNA polymerase II.
CC       In NER, TFIIH acts by opening DNA around the lesion to allow the
CC       excision of the damaged oligonucleotide and its replacement by a new
CC       DNA fragment. In transcription, TFIIH has an essential role in
CC       transcription initiation. When the pre-initiation complex (PIC) has
CC       been established, TFIIH is required for promoter opening and promoter
CC       escape. Phosphorylation of the C-terminal tail (CTD) of the largest
CC       subunit of RNA polymerase II by the kinase module CAK controls the
CC       initiation of transcription. {ECO:0000256|RuleBase:RU368090}.
CC   -!- SUBUNIT: Part of a TFIID-containing RNA polymerase II pre-initiation
CC       complex that is composed of TBP and at least GTF2A1, GTF2A2, GTF2E1,
CC       GTF2E2, GTF2F1, GTF2H2, GTF2H3, GTF2H4, GTF2H5, GTF2B, TCEA1, ERCC2,
CC       ERCC3, TAF1, TAF2, TAF3, TAF4, TAF5, TAF6, TAF7, TAF8, TAF9, TAF10,
CC       TAF11, TAF12 and TAF13. Component of the 7-subunit TFIIH core complex
CC       composed of XPB/ERCC3, XPD/ERCC2, GTF2H1, GTF2H2, GTF2H3, GTF2H4 and
CC       GTF2H5, which is active in NER. The core complex associates with the 3-
CC       subunit CDK-activating kinase (CAK) module composed of CCNH/cyclin H,
CC       CDK7 and MNAT1 to form the 10-subunit holoenzyme (holo-TFIIH) active in
CC       transcription. Interacts with RARA; the interaction requires prior
CC       phosphorylation of RARA on 'Ser-369' which then enhances interaction of
CC       RARA with CDK7. {ECO:0000256|RuleBase:RU368090}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000256|ARBA:ARBA00004123,
CC       ECO:0000256|RuleBase:RU368090}.
CC   -!- SIMILARITY: Belongs to the TFB4 family. {ECO:0000256|ARBA:ARBA00005273,
CC       ECO:0000256|RuleBase:RU368090}.
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DR   AlphaFoldDB; A0A3B3QR48; -.
DR   Ensembl; ENSPKIT00000032148.1; ENSPKIP00000008075.1; ENSPKIG00000023706.1.
DR   GeneTree; ENSGT00390000013143; -.
DR   Proteomes; UP000261540; Unplaced.
DR   GO; GO:0000439; C:transcription factor TFIIH core complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0005675; C:transcription factor TFIIH holo complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006289; P:nucleotide-excision repair; IEA:UniProtKB-UniRule.
DR   GO; GO:0006355; P:regulation of DNA-templated transcription; IEA:InterPro.
DR   Gene3D; 3.40.50.410; von Willebrand factor, type A domain; 1.
DR   InterPro; IPR004600; TFIIH_Tfb4/GTF2H3.
DR   InterPro; IPR036465; vWFA_dom_sf.
DR   PANTHER; PTHR12831:SF0; GENERAL TRANSCRIPTION FACTOR IIH SUBUNIT 3; 1.
DR   PANTHER; PTHR12831; TRANSCRIPTION INITIATION FACTOR IIH TFIIH , POLYPEPTIDE 3-RELATED; 1.
DR   Pfam; PF03850; Tfb4; 1.
PE   3: Inferred from homology;
KW   DNA damage {ECO:0000256|RuleBase:RU368090};
KW   DNA repair {ECO:0000256|RuleBase:RU368090};
KW   Metal-binding {ECO:0000256|RuleBase:RU368090};
KW   Nucleus {ECO:0000256|RuleBase:RU368090};
KW   Transcription {ECO:0000256|ARBA:ARBA00023163,
KW   ECO:0000256|RuleBase:RU368090};
KW   Transcription regulation {ECO:0000256|ARBA:ARBA00023015,
KW   ECO:0000256|RuleBase:RU368090}; Zinc {ECO:0000256|RuleBase:RU368090};
KW   Zinc-finger {ECO:0000256|ARBA:ARBA00022771, ECO:0000256|RuleBase:RU368090}.
SQ   SEQUENCE   200 AA;  21234 MW;  A6859FA58D9A9474 CRC64;
     MVMGNSHLVM NRTNKLAIIA SHCQESHFLY PSKHWKAGDM TGDDSGLGSG DGKYELLSVA
     NDLIAEEVRR LMARTKISGH QTDTMLAGSL AKALCCIPLS QDMKSRILVI RAAEDCALQY
     MNFMNVIFAA QKNGVLIDAC VLASDSGLLQ QAHATSTLLL VCVSCAVGVP VGLRPAFPVG
     PASPSARGLQ GGLFLPSQPH
//