ID RPOA_SALRD Reviewed; 328 AA.
AC Q2S3N9;
DT 12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT 24-JUL-2007, sequence version 2.
DT 24-JAN-2024, entry version 107.
DE RecName: Full=DNA-directed RNA polymerase subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
DE Short=RNAP subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
DE EC=2.7.7.6 {ECO:0000255|HAMAP-Rule:MF_00059};
DE AltName: Full=RNA polymerase subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
DE AltName: Full=Transcriptase subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
GN Name=rpoA {ECO:0000255|HAMAP-Rule:MF_00059}; OrderedLocusNames=SRU_1060;
OS Salinibacter ruber (strain DSM 13855 / M31).
OC Bacteria; Rhodothermota; Rhodothermia; Rhodothermales; Salinibacteraceae;
OC Salinibacter.
OX NCBI_TaxID=309807;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 13855 / CECT 5946 / M31;
RX PubMed=16330755; DOI=10.1073/pnas.0509073102;
RA Mongodin E.F., Nelson K.E., Daugherty S., DeBoy R.T., Wister J., Khouri H.,
RA Weidman J., Walsh D.A., Papke R.T., Sanchez Perez G., Sharma A.K.,
RA Nesbo C.L., MacLeod D., Bapteste E., Doolittle W.F., Charlebois R.L.,
RA Legault B., Rodriguez-Valera F.;
RT "The genome of Salinibacter ruber: convergence and gene exchange among
RT hyperhalophilic bacteria and archaea.";
RL Proc. Natl. Acad. Sci. U.S.A. 102:18147-18152(2005).
CC -!- FUNCTION: DNA-dependent RNA polymerase catalyzes the transcription of
CC DNA into RNA using the four ribonucleoside triphosphates as substrates.
CC {ECO:0000255|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:0000255|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:0000255|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:0000255|HAMAP-Rule:MF_00059}.
CC -!- SIMILARITY: Belongs to the RNA polymerase alpha chain family.
CC {ECO:0000255|HAMAP-Rule:MF_00059}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABC44696.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000159; ABC44696.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_013061621.1; NC_007677.1.
DR RefSeq; YP_445192.1; NC_007677.1.
DR AlphaFoldDB; Q2S3N9; -.
DR SMR; Q2S3N9; -.
DR STRING; 309807.SRU_1060; -.
DR EnsemblBacteria; ABC44696; ABC44696; SRU_1060.
DR GeneID; 83727989; -.
DR KEGG; sru:SRU_1060; -.
DR PATRIC; fig|309807.25.peg.1098; -.
DR eggNOG; COG0202; Bacteria.
DR HOGENOM; CLU_053084_0_1_10; -.
DR OrthoDB; 9805706at2; -.
DR Proteomes; UP000008674; 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; Nucleotidyltransferase; Reference proteome;
KW Transcription; Transferase.
FT CHAIN 1..328
FT /note="DNA-directed RNA polymerase subunit alpha"
FT /id="PRO_0000264542"
FT REGION 1..230
FT /note="Alpha N-terminal domain (alpha-NTD)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
FT REGION 248..328
FT /note="Alpha C-terminal domain (alpha-CTD)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
SQ SEQUENCE 328 AA; 36701 MW; AF899F9FD4608683 CRC64;
MSNHGLQMPE GVHVEEVSDS EGQFVMGPLE RGYGVTIGNA LRRVLLSSLR GLAITAVKID
GVQHEFSTIP GVTEDVADLI LNLKEVRFKA DEMQEGHLHL NLEGPGNWTA ADIDEATAEY
DVLNPDQHVA TLAEDAVVNV DLRVGYGRGY VPSEENKRED DPIGVIAIDS IFTPIKNVNY
EVKPTRVGQK IDYEELLLDV ETDGSLTPEE AITQGASILR DHVSFFIQLE EEPEPVVEEQ
EVDEEVKRIR ELLAQPVDEL DLSVRSHNCL KAANIKTIGD LVRREEDEML KFRNFGRKSL
QELVEVLDER GLQFGMDVEE YLEEKKAS
//
