RPOA_CYAM1
ID RPOA_CYAM1 Reviewed; 316 AA.
AC Q85FU3;
DT 02-FEB-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2003, sequence version 1.
DT 03-AUG-2022, entry version 105.
DE RecName: Full=DNA-directed RNA polymerase subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
DE Short=PEP {ECO:0000255|HAMAP-Rule:MF_00059};
DE EC=2.7.7.6 {ECO:0000255|HAMAP-Rule:MF_00059};
DE AltName: Full=Plastid-encoded RNA polymerase subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
DE Short=RNA polymerase subunit alpha {ECO:0000255|HAMAP-Rule:MF_00059};
GN Name=rpoA {ECO:0000255|HAMAP-Rule:MF_00059};
OS Cyanidioschyzon merolae (strain NIES-3377 / 10D) (Unicellular red alga).
OG Plastid; Chloroplast.
OC Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae;
OC Cyanidioschyzon.
OX NCBI_TaxID=280699;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NIES-3377 / 10D;
RX PubMed=12755171; DOI=10.1093/dnares/10.2.67;
RA Ohta N., Matsuzaki M., Misumi O., Miyagishima S.-Y., Nozaki H., Tanaka K.,
RA Shin-i T., Kohara Y., Kuroiwa T.;
RT "Complete sequence and analysis of the plastid genome of the unicellular
RT red alga Cyanidioschyzon merolae.";
RL DNA Res. 10:67-77(2003).
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 plastids the minimal PEP RNA polymerase catalytic core is
CC composed of four subunits: alpha, beta, beta', and beta''. When a
CC (nuclear-encoded) sigma factor is associated with the core the
CC holoenzyme is formed, which can initiate transcription.
CC {ECO:0000255|HAMAP-Rule:MF_00059}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
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; AB002583; BAC76252.1; -; Genomic_DNA.
DR RefSeq; NP_849090.1; NC_004799.1.
DR AlphaFoldDB; Q85FU3; -.
DR SMR; Q85FU3; -.
DR STRING; 45157.CMV185CT; -.
DR EnsemblPlants; CMV185CT; CMV185CT; CMV185C.
DR GeneID; 844994; -.
DR Gramene; CMV185CT; CMV185CT; CMV185C.
DR KEGG; cme:CymeCp158; -.
DR eggNOG; ENOG502RZXA; Eukaryota.
DR HOGENOM; CLU_053084_0_1_1; -.
DR Proteomes; UP000007014; Chloroplast.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
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 Chloroplast; DNA-directed RNA polymerase; Nucleotidyltransferase; Plastid;
KW Reference proteome; Transcription; Transferase.
FT CHAIN 1..316
FT /note="DNA-directed RNA polymerase subunit alpha"
FT /id="PRO_0000175451"
FT REGION 1..233
FT /note="Alpha N-terminal domain (alpha-NTD)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
FT REGION 245..316
FT /note="Alpha C-terminal domain (alpha-CTD)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00059"
SQ SEQUENCE 316 AA; 35870 MW; CE3BDBD39FCEC500 CRC64;
MCMSQFPIEF QIECAASTIN HARDIYAKFI LQPLSYTQAL TMGNSLRRVL LSELESISIT
AVRIAGASHE LATLKGVRED VLQIMLNLKQ IVWRGQLKKQ PTITRLKVQG PAIVTAAAFQ
SEANSSANII DTCQYIATID TQDILEMECQ LEQSSGYRLA KPSEMIDWLP IDGVFMPVKR
VNFWVDKALV DKVLVDKALH LEIWTNGSIS PQEALHQAAR ILTHWFNPLQ TLEWKTSHTK
NEQTMAQLSN MLIEELDLSV RAYNCLKRAQ IHSVADLMQY TQEELLALKN FGQKSVEEVN
KALEQKLHCQ LKKYVD