ID A0A1F2P8P6_9EURY Unreviewed; 337 AA.
AC A0A1F2P8P6;
DT 18-JAN-2017, integrated into UniProtKB/TrEMBL.
DT 18-JAN-2017, sequence version 1.
DT 27-MAR-2024, entry version 34.
DE RecName: Full=Transcription initiation factor IIB {ECO:0000256|ARBA:ARBA00013932, ECO:0000256|HAMAP-Rule:MF_00383};
DE Short=TFIIB {ECO:0000256|HAMAP-Rule:MF_00383};
GN Name=tfb {ECO:0000256|HAMAP-Rule:MF_00383};
GN ORFNames=SCAL_000993 {ECO:0000313|EMBL:OFV67618.1};
OS Candidatus Syntrophoarchaeum caldarius.
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanosarcinales; Methanosarcinales incertae sedis; ANME-2 cluster;
OC Syntrophoarchaeum.
OX NCBI_TaxID=1838285 {ECO:0000313|EMBL:OFV67618.1, ECO:0000313|Proteomes:UP000186940};
RN [1] {ECO:0000313|EMBL:OFV67618.1, ECO:0000313|Proteomes:UP000186940}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BOX2 {ECO:0000313|EMBL:OFV67618.1};
RA Laso-Perez R., Richter M., Wegener G., Musat F.;
RT "Microbial consortia oxidize butane by reversing methanogenesis.";
RL Submitted (MAY-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Stabilizes TBP binding to an archaeal box-A promoter. Also
CC responsible for recruiting RNA polymerase II to the pre-initiation
CC complex (DNA-TBP-TFIIB). {ECO:0000256|HAMAP-Rule:MF_00383}.
CC -!- SIMILARITY: Belongs to the TFIIB family.
CC {ECO:0000256|ARBA:ARBA00010857, ECO:0000256|HAMAP-Rule:MF_00383}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OFV67618.1}.
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DR EMBL; LYOS01000003; OFV67618.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1F2P8P6; -.
DR STRING; 1838285.SCAL_000993; -.
DR PATRIC; fig|1838285.3.peg.1009; -.
DR Proteomes; UP000186940; Unassembled WGS sequence.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0017025; F:TBP-class protein binding; IEA:InterPro.
DR GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-KW.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0070897; P:transcription preinitiation complex assembly; IEA:InterPro.
DR CDD; cd20549; CYCLIN_TFIIB_archaea_like_rpt1; 1.
DR Gene3D; 1.10.472.170; -; 1.
DR Gene3D; 1.10.472.10; Cyclin-like; 1.
DR HAMAP; MF_00383; TF2B_arch; 1.
DR InterPro; IPR013763; Cyclin-like_dom.
DR InterPro; IPR036915; Cyclin-like_sf.
DR InterPro; IPR000812; TFIIB.
DR InterPro; IPR023484; TFIIB_arc.
DR InterPro; IPR023486; TFIIB_CS.
DR InterPro; IPR013150; TFIIB_cyclin.
DR InterPro; IPR013137; Znf_TFIIB.
DR PANTHER; PTHR11618:SF13; TRANSCRIPTION INITIATION FACTOR IIB; 1.
DR PANTHER; PTHR11618; TRANSCRIPTION INITIATION FACTOR IIB-RELATED; 1.
DR Pfam; PF08271; TF_Zn_Ribbon; 1.
DR Pfam; PF00382; TFIIB; 2.
DR PRINTS; PR00685; TIFACTORIIB.
DR SMART; SM00385; CYCLIN; 2.
DR SUPFAM; SSF47954; Cyclin-like; 2.
DR SUPFAM; SSF57783; Zinc beta-ribbon; 1.
DR PROSITE; PS00782; TFIIB; 1.
DR PROSITE; PS51134; ZF_TFIIB; 1.
PE 3: Inferred from homology;
KW Initiation factor {ECO:0000313|EMBL:OFV67618.1};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00383};
KW Protein biosynthesis {ECO:0000313|EMBL:OFV67618.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000186940};
KW Repeat {ECO:0000256|ARBA:ARBA00022737, ECO:0000256|HAMAP-Rule:MF_00383};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_00383};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015, ECO:0000256|HAMAP-
KW Rule:MF_00383};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_00383};
KW Zinc-finger {ECO:0000256|ARBA:ARBA00022771, ECO:0000256|PROSITE-
KW ProRule:PRU00469}.
FT DOMAIN 17..48
FT /note="TFIIB-type"
FT /evidence="ECO:0000259|PROSITE:PS51134"
FT REPEAT 129..212
FT /note="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REPEAT 223..304
FT /note="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT REGION 313..337
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 21
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 24
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 40
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
FT BINDING 43
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00383"
SQ SEQUENCE 337 AA; 37629 MW; 5C11CE8B493220A7 CRC64;
MTEAKEKAEE EQRVYRAATK CPECDSPILK QDYERGEIIC DSCGLVIEEN IMDQGAEWRA
FDYEQMVKRA RTGAPMTYMI HDKGLSTFID WRDANVHGKS AANIHRLRKW QNRVRVSSSS
ERSLIFAISE IDRMGSALGL SKDVREAAAL MYRKAMEKDL IRGRSVEGLA TAILYAVCRQ
KGIPRTLEEV GSVSRVKQKE IGRTYRFLSR ELDFKLQPSS PVEFVSRFCS RLGLKEDVRT
KAVEIVNKAE TQELTVGKGP ISIAAAAIYI AARMCGITRT QKEVAAATGV TEVTIRNRYK
DMVEAMGIEL PQLQPTSSSS SNLSSSGSPL NSEKELS
//
