ID   RPOA_MARSD              Reviewed;         346 AA.
AC   C6C1B1;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-SEP-2009, sequence version 1.
DT   03-AUG-2022, entry version 68.
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=Desal_1211;
OS   Maridesulfovibrio salexigens (strain ATCC 14822 / DSM 2638 / NCIMB 8403 /
OS   VKM B-1763) (Desulfovibrio salexigens).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Maridesulfovibrio.
OX   NCBI_TaxID=526222;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14822 / DSM 2638 / NCIMB 8403 / VKM B-1763;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Munk A.C., Brettin T., Detter J.C., Han C.,
RA   Tapia R., Larimer F., Land M., Hauser L., Kyrpides N., Anderson I.,
RA   Wall J.D., Arkin A.P., Dehal P., Chivian D., Giles B., Hazen T.C.;
RT   "Complete sequence of Desulfovibrio salexigens DSM 2638.";
RL   Submitted (JUN-2009) to the EMBL/GenBank/DDBJ databases.
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}.
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DR   EMBL; CP001649; ACS79274.1; -; Genomic_DNA.
DR   RefSeq; WP_015851092.1; NC_012881.1.
DR   AlphaFoldDB; C6C1B1; -.
DR   SMR; C6C1B1; -.
DR   STRING; 526222.Desal_1211; -.
DR   PRIDE; C6C1B1; -.
DR   EnsemblBacteria; ACS79274; ACS79274; Desal_1211.
DR   KEGG; dsa:Desal_1211; -.
DR   eggNOG; COG0202; Bacteria.
DR   HOGENOM; CLU_053084_0_1_7; -.
DR   OMA; LMKFRNF; -.
DR   OrthoDB; 662686at2; -.
DR   Proteomes; UP000002601; 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:transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.170.120.12; -; 1.
DR   Gene3D; 3.30.1360.10; -; 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   PANTHER; PTHR32108; PTHR32108; 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; SSF55257; SSF55257; 1.
DR   SUPFAM; SSF56553; SSF56553; 1.
DR   TIGRFAMs; TIGR02027; rpoA; 1.
PE   3: Inferred from homology;
KW   DNA-directed RNA polymerase; Nucleotidyltransferase; Reference proteome;
KW   Transcription; Transferase.
FT   CHAIN           1..346
FT                   /note="DNA-directed RNA polymerase subunit alpha"
FT                   /id="PRO_1000202353"
FT   REGION          1..242
FT                   /note="Alpha N-terminal domain (alpha-NTD)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
FT   REGION          258..346
FT                   /note="Alpha C-terminal domain (alpha-CTD)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
SQ   SEQUENCE   346 AA;  39267 MW;  6B4639CDF5CAEAE2 CRC64;
     MLIQDGDKLI NTRNWAELVK PEQLVRDPKS NELYGKFICE PLERGFGTTI GNSLRRVLLS
     SMQGAAAVAV KIEGVQHEFT TIEGVMEDVT EIVLNIKQIR FAMTTDEPQF LTLRVNKQGV
     VTAADIQENQ NVKVLNPEQI IATLSEKMDM EMTFEIRMGK GYVPADMHEG LVNEIGHIIL
     DSSFSPIRKV AYSVEQARVG QMTNYDKLII EVFTDGSVTP EDAIAYSAKI LKDQLSVFIN
     FDEMGSEQEE SKESDLDLNP NLFKSIDELE LSVRATNCLK AANIRIVGEL VQRTEQTMLK
     TKNFGRKSLD EIRRVLDSME LKFGMVLEDF DKKHQEWLKR KEKNEA