ID   RPOA_DESAH              Reviewed;         340 AA.
AC   C0Q9U7;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 71.
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=HRM2_36000;
OS   Desulforapulum autotrophicum (strain ATCC 43914 / DSM 3382 / VKM B-1955 /
OS   HRM2) (Desulfobacterium autotrophicum).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfobacterales;
OC   Desulfobacteraceae; Desulforapulum.
OX   NCBI_TaxID=177437;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43914 / DSM 3382 / VKM B-1955 / HRM2;
RX   PubMed=19187283; DOI=10.1111/j.1462-2920.2008.01825.x;
RA   Strittmatter A.W., Liesegang H., Rabus R., Decker I., Amann J., Andres S.,
RA   Henne A., Fricke W.F., Martinez-Arias R., Bartels D., Goesmann A.,
RA   Krause L., Puehler A., Klenk H.P., Richter M., Schuler M., Gloeckner F.O.,
RA   Meyerdierks A., Gottschalk G., Amann R.;
RT   "Genome sequence of Desulfobacterium autotrophicum HRM2, a marine sulfate
RT   reducer oxidizing organic carbon completely to carbon dioxide.";
RL   Environ. Microbiol. 11:1038-1055(2009).
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; CP001087; ACN16665.1; -; Genomic_DNA.
DR   RefSeq; WP_015905415.1; NC_012108.1.
DR   AlphaFoldDB; C0Q9U7; -.
DR   SMR; C0Q9U7; -.
DR   STRING; 177437.HRM2_36000; -.
DR   EnsemblBacteria; ACN16665; ACN16665; HRM2_36000.
DR   KEGG; dat:HRM2_36000; -.
DR   eggNOG; COG0202; Bacteria.
DR   HOGENOM; CLU_053084_0_1_7; -.
DR   OMA; LMKFRNF; -.
DR   OrthoDB; 662686at2; -.
DR   Proteomes; UP000000442; 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..340
FT                   /note="DNA-directed RNA polymerase subunit alpha"
FT                   /id="PRO_1000202354"
FT   REGION          1..237
FT                   /note="Alpha N-terminal domain (alpha-NTD)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
FT   REGION          256..340
FT                   /note="Alpha C-terminal domain (alpha-CTD)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
SQ   SEQUENCE   340 AA;  37890 MW;  6254279CC93F5F51 CRC64;
     MSSDELVYMN WREIIMPEKV AVTTTSTYGK FVCEPLEKGY GITIGNSLRR IILSSLYGAA
     IVSVKFSEAL HEYSVVSDVR EDVSEIIMNL KEVKLKLDDP GDKILTINVK GEKFVTAADI
     ISGDGRVEIL NPEQHIATVS KGGELMMTML VKTGKGYALA ASNKDPEAPV GTIPIDSVFS
     PIKRVKYVVG ASRIGQKTDY DKLTMEIWTD GSVTPEDSVA YAAKILKEQM NPFINFDEDI
     EPELVEKEHE GAAKNFNENL YRSVDELELS VRSSNCLKNA QILKIYQLVQ KTDNEMLKTK
     NFGRKSLNEI KEVLTSMDLS LGMDLEGFEP PEEDQIKEGE