ID I3WJP2_BIFBI Unreviewed; 331 AA.
AC I3WJP2;
DT 05-SEP-2012, integrated into UniProtKB/TrEMBL.
DT 05-SEP-2012, sequence version 1.
DT 24-JAN-2024, entry version 55.
DE RecName: Full=DNA-directed RNA polymerase subunit alpha {ECO:0000256|ARBA:ARBA00015972, ECO:0000256|HAMAP-Rule:MF_00059};
DE Short=RNAP subunit alpha {ECO:0000256|HAMAP-Rule:MF_00059};
DE EC=2.7.7.6 {ECO:0000256|ARBA:ARBA00012418, ECO:0000256|HAMAP-Rule:MF_00059};
DE AltName: Full=RNA polymerase subunit alpha {ECO:0000256|ARBA:ARBA00033070, ECO:0000256|HAMAP-Rule:MF_00059};
DE AltName: Full=Transcriptase subunit alpha {ECO:0000256|ARBA:ARBA00032524, ECO:0000256|HAMAP-Rule:MF_00059};
GN Name=rpoA {ECO:0000256|HAMAP-Rule:MF_00059,
GN ECO:0000313|EMBL:AFL05105.1};
GN ORFNames=BBB_1514 {ECO:0000313|EMBL:AFL05105.1};
OS Bifidobacterium bifidum BGN4.
OC Bacteria; Actinomycetota; Actinomycetes; Bifidobacteriales;
OC Bifidobacteriaceae; Bifidobacterium.
OX NCBI_TaxID=484020 {ECO:0000313|EMBL:AFL05105.1, ECO:0000313|Proteomes:UP000006173};
RN [1] {ECO:0000313|EMBL:AFL05105.1, ECO:0000313|Proteomes:UP000006173}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BGN4 {ECO:0000313|EMBL:AFL05105.1,
RC ECO:0000313|Proteomes:UP000006173};
RX PubMed=22887663; DOI=10.1128/JB.00988-12;
RA Yu D.S., Jeong H., Lee D.H., Kwon S.K., Song J.Y., Kim B.K., Park M.S.,
RA Ji G.E., Oh T.K., Kim J.F.;
RT "Complete Genome Sequence of the Probiotic Bacterium Bifidobacterium
RT bifidum Strain BGN4.";
RL J. Bacteriol. 194:4757-4758(2012).
CC -!- FUNCTION: DNA-dependent RNA polymerase catalyzes the transcription of
CC DNA into RNA using the four ribonucleoside triphosphates as substrates.
CC {ECO:0000256|HAMAP-Rule:MF_00059}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ribonucleoside 5'-triphosphate + RNA(n) = diphosphate +
CC RNA(n+1); Xref=Rhea:RHEA:21248, Rhea:RHEA-COMP:14527, Rhea:RHEA-
CC COMP:17342, ChEBI:CHEBI:33019, ChEBI:CHEBI:61557, ChEBI:CHEBI:140395;
CC EC=2.7.7.6; Evidence={ECO:0000256|ARBA:ARBA00024550,
CC ECO:0000256|HAMAP-Rule:MF_00059};
CC -!- SUBUNIT: Homodimer. The RNAP catalytic core consists of 2 alpha, 1
CC beta, 1 beta' and 1 omega subunit. When a sigma factor is associated
CC with the core the holoenzyme is formed, which can initiate
CC transcription. {ECO:0000256|HAMAP-Rule:MF_00059}.
CC -!- DOMAIN: The N-terminal domain is essential for RNAP assembly and basal
CC transcription, whereas the C-terminal domain is involved in interaction
CC with transcriptional regulators and with upstream promoter elements.
CC {ECO:0000256|HAMAP-Rule:MF_00059}.
CC -!- SIMILARITY: Belongs to the RNA polymerase alpha chain family.
CC {ECO:0000256|ARBA:ARBA00007123, ECO:0000256|HAMAP-Rule:MF_00059}.
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DR EMBL; CP001361; AFL05105.1; -; Genomic_DNA.
DR RefSeq; WP_003814583.1; NC_017999.1.
DR AlphaFoldDB; I3WJP2; -.
DR GeneID; 56627948; -.
DR KEGG; bbf:BBB_1514; -.
DR PATRIC; fig|484020.3.peg.1498; -.
DR HOGENOM; CLU_053084_0_1_11; -.
DR Proteomes; UP000006173; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR GO; GO:0000428; C:DNA-directed RNA polymerase complex; IEA:UniProtKB-KW.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003899; F:DNA-directed 5'-3' RNA polymerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046983; F:protein dimerization activity; IEA:InterPro.
DR GO; GO:0006351; P:DNA-templated transcription; IEA:UniProtKB-UniRule.
DR CDD; cd06928; RNAP_alpha_NTD; 1.
DR Gene3D; 1.10.150.20; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR Gene3D; 2.170.120.12; DNA-directed RNA polymerase, insert domain; 1.
DR Gene3D; 3.30.1360.10; RNA polymerase, RBP11-like subunit; 1.
DR HAMAP; MF_00059; RNApol_bact_RpoA; 1.
DR InterPro; IPR011262; DNA-dir_RNA_pol_insert.
DR InterPro; IPR011263; DNA-dir_RNA_pol_RpoA/D/Rpb3.
DR InterPro; IPR011773; DNA-dir_RpoA.
DR InterPro; IPR036603; RBP11-like.
DR InterPro; IPR011260; RNAP_asu_C.
DR InterPro; IPR036643; RNApol_insert_sf.
DR NCBIfam; TIGR02027; rpoA; 1.
DR Pfam; PF01000; RNA_pol_A_bac; 1.
DR Pfam; PF03118; RNA_pol_A_CTD; 1.
DR Pfam; PF01193; RNA_pol_L; 1.
DR SMART; SM00662; RPOLD; 1.
DR SUPFAM; SSF47789; C-terminal domain of RNA polymerase alpha subunit; 1.
DR SUPFAM; SSF56553; Insert subdomain of RNA polymerase alpha subunit; 1.
DR SUPFAM; SSF55257; RBP11-like subunits of RNA polymerase; 1.
PE 3: Inferred from homology;
KW DNA-directed RNA polymerase {ECO:0000256|ARBA:ARBA00022478,
KW ECO:0000256|HAMAP-Rule:MF_00059};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695, ECO:0000256|HAMAP-
KW Rule:MF_00059}; Reference proteome {ECO:0000313|Proteomes:UP000006173};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_00059};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00059}.
FT DOMAIN 18..225
FT /note="DNA-directed RNA polymerase RpoA/D/Rpb3-type"
FT /evidence="ECO:0000259|SMART:SM00662"
FT REGION 1..228
FT /note="Alpha N-terminal domain (alpha-NTD)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00059"
FT REGION 244..331
FT /note="Alpha C-terminal domain (alpha-CTD)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00059"
SQ SEQUENCE 331 AA; 36082 MW; 18A9F780D96937AC CRC64;
MLIAQRPTLT EESINPQRSR FVIEPLEPGF GYTLGNSLRR TLLSSIPGAA VTSVRISGAL
HEFTTLPGVV EDVTEILLNI KGIVLTSEYD EPVVMYLRKS GNGEVTAGDI TPPAGVTIAN
PDQHIATLAD DGELEIEFTV ERGRGYVPAQ MNKQDTDEIG RIPVDSIYSP VLKVSYKVEA
TRVEQRTDFD KLILDVETKP AISPRDAVAS AGSTLVELFG LCRELNVQAE GVEVGPAPVA
EETNPEMAVP IEDLNLTQRS YNCLKREGIH TIGELVAHTE QDLLDIRNFG MKSIDEVKDK
LQSMGLSLKS SPLGFDTNNL EGGTFFSPED E
//
