RPOA_PROM0
ID RPOA_PROM0 Reviewed; 312 AA.
AC A3PF25;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 03-APR-2007, sequence version 1.
DT 03-AUG-2022, entry version 86.
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=P9301_17271;
OS Prochlorococcus marinus (strain MIT 9301).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=167546;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9301;
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
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: In cyanobacteria the RNAP catalytic core is composed of 2
CC alpha, 1 beta, 1 beta', 1 gamma and 1 omega subunit. When a sigma
CC factor is associated with the core the holoenzyme is formed, which can
CC initiate 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; CP000576; ABO18350.1; -; Genomic_DNA.
DR RefSeq; WP_011863643.1; NC_009091.1.
DR AlphaFoldDB; A3PF25; -.
DR SMR; A3PF25; -.
DR STRING; 167546.P9301_17271; -.
DR EnsemblBacteria; ABO18350; ABO18350; P9301_17271.
DR KEGG; pmg:P9301_17271; -.
DR eggNOG; COG0202; Bacteria.
DR HOGENOM; CLU_053084_0_1_3; -.
DR OMA; LMKFRNF; -.
DR Proteomes; UP000001430; 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..312
FT /note="DNA-directed RNA polymerase subunit alpha"
FT /id="PRO_0000296851"
FT REGION 1..229
FT /note="Alpha N-terminal domain (alpha-NTD)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
FT REGION 240..312
FT /note="Alpha C-terminal domain (alpha-CTD)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
SQ SEQUENCE 312 AA; 34194 MW; A0352F9F0FAA1FF7 CRC64;
MLQYQIERID HQIADDRSQT GTFLIGPLER GQATTLGNSL RRVLMGGLEG SAVTAVRIAG
INHEYATIPG VREDVLDILL NCKQLSINST NPELEIGRLV ASGPMEVKAN DIQFSSQVEI
VDGEKPIATI QEGHNLELEI HVERGVGYRP VDRKSEETTA IDLLQIDAVF MPVKRVNFTI
DETAVAEGGT GRERLKMEVV TDGSTSPDDA IAEAANQLIE LFQPLATVTM VEEIPEEPEP
SPEAQIPLEE LNLSVRAYNC LKRAQVNSVS DLMGFSYEDL LEIKNFGSKS ADEVIEALER
IGISIPQSRT SV