ID   RPOA_THEVB              Reviewed;         321 AA.
AC   Q8DML0;
DT   22-AUG-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 113.
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=tlr0105;
OS   Thermosynechococcus vestitus (strain NIES-2133 / IAM M-273 / BP-1).
OC   Bacteria; Cyanobacteria; Pseudanabaenales; Thermosynechococcaceae;
OC   Thermosynechococcus.
OX   NCBI_TaxID=197221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NIES-2133 / IAM M-273 / BP-1;
RX   PubMed=12240834; DOI=10.1093/dnares/9.4.123;
RA   Nakamura Y., Kaneko T., Sato S., Ikeuchi M., Katoh H., Sasamoto S.,
RA   Watanabe A., Iriguchi M., Kawashima K., Kimura T., Kishida Y., Kiyokawa C.,
RA   Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takeuchi C., Yamada M., Tabata S.;
RT   "Complete genome structure of the thermophilic cyanobacterium
RT   Thermosynechococcus elongatus BP-1.";
RL   DNA Res. 9:123-130(2002).
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. In cyanobacteria the RNAP catalytic core is
CC       composed of 2 alpha, 1 beta, 1 beta', 1 gamma and 1 omega subunit. When
CC       a sigma factor is associated with the core the holoenzyme is formed,
CC       which can initiate transcription (By similarity). {ECO:0000250}.
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; BA000039; BAC07658.1; -; Genomic_DNA.
DR   RefSeq; NP_680896.1; NC_004113.1.
DR   RefSeq; WP_011055960.1; NC_004113.1.
DR   AlphaFoldDB; Q8DML0; -.
DR   SMR; Q8DML0; -.
DR   STRING; 197221.22293826; -.
DR   EnsemblBacteria; BAC07658; BAC07658; BAC07658.
DR   KEGG; tel:tlr0105; -.
DR   PATRIC; fig|197221.4.peg.108; -.
DR   eggNOG; COG0202; Bacteria.
DR   OMA; LMKFRNF; -.
DR   OrthoDB; 662686at2; -.
DR   Proteomes; UP000000440; 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..321
FT                   /note="DNA-directed RNA polymerase subunit alpha"
FT                   /id="PRO_0000175401"
FT   REGION          1..235
FT                   /note="Alpha N-terminal domain (alpha-NTD)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
FT   REGION          252..321
FT                   /note="Alpha C-terminal domain (alpha-CTD)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
SQ   SEQUENCE   321 AA;  35685 MW;  E5D8FC2204CC021F CRC64;
     MAYQIECLET RVEEDQGQYG QFALHPLAPG QGITVGNALR RVLLSNLPGS AVTAVRIAGV
     NHEFSTIPGV REDVMDILLQ MKQLVIRSHT SEPQMGRLFA QAPENEPLTV TAGMVQLGSE
     VEVVNPNHYI ATLMPGATLE MEFKIEKDRG YRSVERVRDD RLALDYLQLD AVFMPVRRVN
     YTVDSVRSAG AEGDRQLQDY LKLEIWTNGS LTPQDALNQA ATILVDLFSP LKEVPLHTSE
     ATATDDHDET GQIPIEQLNL SVRAYNCLKR AQVNTVADLL EYSQEELLEI KNFGQKSAEE
     VIEALQKHLG ITLPPQKAAR N