ID   RPOZ_SYNY3              Reviewed;          76 AA.
AC   P74352;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   03-AUG-2022, entry version 120.
DE   RecName: Full=DNA-directed RNA polymerase subunit omega;
DE            Short=RNAP omega subunit;
DE            EC=2.7.7.6;
DE   AltName: Full=RNA polymerase omega subunit;
DE   AltName: Full=Transcriptase subunit omega;
GN   Name=rpoZ; OrderedLocusNames=ssl2982;
OS   Synechocystis sp. (strain PCC 6803 / Kazusa).
OC   Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC   unclassified Synechocystis.
OX   NCBI_TaxID=1111708;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 6803 / Kazusa;
RX   PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA   Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA   Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA   Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA   Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT   genome and assignment of potential protein-coding regions.";
RL   DNA Res. 3:109-136(1996).
CC   -!- FUNCTION: Promotes RNA polymerase assembly. Latches the N- and C-
CC       terminal regions of the beta' subunit thereby facilitating its
CC       interaction with the beta and alpha subunits (By similarity).
CC       {ECO:0000250}.
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;
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 (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the RNA polymerase subunit omega family.
CC       {ECO:0000305}.
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DR   EMBL; BA000022; BAA18446.1; -; Genomic_DNA.
DR   PIR; S76187; S76187.
DR   AlphaFoldDB; P74352; -.
DR   SMR; P74352; -.
DR   STRING; 1148.1653533; -.
DR   PaxDb; P74352; -.
DR   EnsemblBacteria; BAA18446; BAA18446; BAA18446.
DR   KEGG; syn:ssl2982; -.
DR   eggNOG; ENOG5032RMS; Bacteria.
DR   InParanoid; P74352; -.
DR   OMA; LRAIIEM; -.
DR   Proteomes; UP000001425; Chromosome.
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:0006351; P:transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00366; RNApol_bact_RpoZ; 1.
DR   InterPro; IPR003716; DNA-dir_RNA_pol_omega.
DR   InterPro; IPR006110; Pol_omega/Rpo6/RPB6.
DR   InterPro; IPR036161; RPB6/omega-like_sf.
DR   Pfam; PF01192; RNA_pol_Rpb6; 1.
DR   SUPFAM; SSF63562; SSF63562; 1.
PE   3: Inferred from homology;
KW   DNA-directed RNA polymerase; Nucleotidyltransferase; Reference proteome;
KW   Transcription; Transferase.
FT   CHAIN           1..76
FT                   /note="DNA-directed RNA polymerase subunit omega"
FT                   /id="PRO_0000129001"
SQ   SEQUENCE   76 AA;  8737 MW;  972582C63F602164 CRC64;
     MTKRSNLDSN HIIYRSEELL GAASNRYNIT VRVAKRAKEN RSEDFDSIDD PNMKPAIRAI
     IEMSDELTRP EIISDN