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Database: UniProt
Entry: A0A1J1LKN7_9CYAN
LinkDB: A0A1J1LKN7_9CYAN
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ID   A0A1J1LKN7_9CYAN        Unreviewed;       326 AA.
AC   A0A1J1LKN7;
DT   15-FEB-2017, integrated into UniProtKB/TrEMBL.
DT   15-FEB-2017, sequence version 1.
DT   24-JAN-2024, entry version 30.
DE   RecName: Full=DNA-directed RNA polymerase subunit alpha {ECO:0000256|ARBA:ARBA00015972, ECO:0000256|HAMAP-Rule:MF_00059};
DE            Short=RNAP subunit alpha {ECO:0000256|HAMAP-Rule:MF_00059};
DE            EC=2.7.7.6 {ECO:0000256|ARBA:ARBA00012418, ECO:0000256|HAMAP-Rule:MF_00059};
DE   AltName: Full=RNA polymerase subunit alpha {ECO:0000256|ARBA:ARBA00033070, ECO:0000256|HAMAP-Rule:MF_00059};
DE   AltName: Full=Transcriptase subunit alpha {ECO:0000256|ARBA:ARBA00032524, ECO:0000256|HAMAP-Rule:MF_00059};
GN   Name=rpoA {ECO:0000256|HAMAP-Rule:MF_00059,
GN   ECO:0000313|EMBL:CUR33072.1};
GN   ORFNames=PL9214500319 {ECO:0000313|EMBL:CUR33072.1};
OS   Planktothrix tepida PCC 9214.
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Oscillatoriophycideae;
OC   Oscillatoriales; Microcoleaceae; Planktothrix.
OX   NCBI_TaxID=671072 {ECO:0000313|EMBL:CUR33072.1, ECO:0000313|Proteomes:UP000184315};
RN   [1] {ECO:0000313|Proteomes:UP000184315}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Regsiter A., william w.;
RL   Submitted (OCT-2015) 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:0000256|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:0000256|ARBA:ARBA00024550,
CC         ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00059}.
CC   -!- SIMILARITY: Belongs to the RNA polymerase alpha chain family.
CC       {ECO:0000256|ARBA:ARBA00007123, ECO:0000256|HAMAP-Rule:MF_00059}.
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DR   EMBL; CZDF01000156; CUR33072.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1J1LKN7; -.
DR   STRING; 671072.PL9214500319; -.
DR   OrthoDB; 9805706at2; -.
DR   Proteomes; UP000184315; Unassembled WGS sequence.
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 {ECO:0000256|ARBA:ARBA00022478,
KW   ECO:0000256|HAMAP-Rule:MF_00059};
KW   Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695, ECO:0000256|HAMAP-
KW   Rule:MF_00059}; Reference proteome {ECO:0000313|Proteomes:UP000184315};
KW   Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW   Rule:MF_00059};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW   Rule:MF_00059}.
FT   DOMAIN          27..234
FT                   /note="DNA-directed RNA polymerase RpoA/D/Rpb3-type"
FT                   /evidence="ECO:0000259|SMART:SM00662"
FT   REGION          1..235
FT                   /note="Alpha N-terminal domain (alpha-NTD)"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00059"
FT   REGION          247..326
FT                   /note="Alpha C-terminal domain (alpha-CTD)"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00059"
SQ   SEQUENCE   326 AA;  36007 MW;  CB2517680A7B2FF1 CRC64;
     MEKGGPSVAQ FKIECIESNT DTDRSQYGKF VLEPLERGQG TTVGNALRRV LLSNLEGSAI
     TSVRVAGVNH EFATITGVRE DVLEILLNLK EVVLKSYTHQ KQIGRLLVQG PATVTAGHFD
     LPSEVEVVDK NQYIATLAPG ATLEMEFQVE KGTGYRAVER SRDEATALDF LQIDAVFMPV
     RKVNYTVEDA RVGGSLEKDR LIMEIWTNGS FSPQEALSQA ANILVDLFTP LKDITLESIK
     SDQNDDIDPT SQIPIEELQL SVRAYNCLKR AQINSVADLR DYTQEDLLEI KNFGQKSAEE
     VIEALQKRLG ITLPQERASK PAASSP
//
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