ID   SIGS_STAA3              Reviewed;         156 AA.
AC   Q2FFW3;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 2.
DT   25-MAY-2022, entry version 88.
DE   RecName: Full=RNA polymerase sigma factor SigS;
GN   Name=sigS; OrderedLocusNames=SAUSA300_1722;
OS   Staphylococcus aureus (strain USA300).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=367830;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=USA300;
RX   PubMed=16517273; DOI=10.1016/s0140-6736(06)68231-7;
RA   Diep B.A., Gill S.R., Chang R.F., Phan T.H., Chen J.H., Davidson M.G.,
RA   Lin F., Lin J., Carleton H.A., Mongodin E.F., Sensabaugh G.F.,
RA   Perdreau-Remington F.;
RT   "Complete genome sequence of USA300, an epidemic clone of community-
RT   acquired meticillin-resistant Staphylococcus aureus.";
RL   Lancet 367:731-739(2006).
CC   -!- FUNCTION: Sigma factors are initiation factors that promote the
CC       attachment of RNA polymerase to specific initiation sites and are then
CC       released. Sigma-S contributes to the protection against external
CC       stress, thus playing a role in cellular fitness and survival (By
CC       similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the sigma-70 factor family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABD20491.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000255; ABD20491.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_000671052.1; NZ_CP027476.1.
DR   AlphaFoldDB; Q2FFW3; -.
DR   SMR; Q2FFW3; -.
DR   EnsemblBacteria; ABD20491; ABD20491; SAUSA300_1722.
DR   KEGG; saa:SAUSA300_1722; -.
DR   HOGENOM; CLU_047691_20_2_9; -.
DR   Proteomes; UP000001939; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0016987; F:sigma factor activity; IEA:UniProtKB-KW.
DR   GO; GO:0006352; P:DNA-templated transcription, initiation; IEA:InterPro.
DR   Gene3D; 1.10.10.10; -; 1.
DR   InterPro; IPR014284; RNA_pol_sigma-70_dom.
DR   InterPro; IPR007627; RNA_pol_sigma70_r2.
DR   InterPro; IPR013325; RNA_pol_sigma_r2.
DR   InterPro; IPR016032; Sig_transdc_resp-reg_C-effctor.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   Pfam; PF04542; Sigma70_r2; 1.
DR   SUPFAM; SSF46894; SSF46894; 1.
DR   SUPFAM; SSF88946; SSF88946; 1.
DR   TIGRFAMs; TIGR02937; sigma70-ECF; 1.
PE   3: Inferred from homology;
KW   DNA-binding; Sigma factor; Transcription; Transcription regulation.
FT   CHAIN           1..156
FT                   /note="RNA polymerase sigma factor SigS"
FT                   /id="PRO_0000367457"
FT   DNA_BIND        126..145
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000250"
FT   MOTIF           29..44
FT                   /note="Polymerase core binding"
SQ   SEQUENCE   156 AA;  19136 MW;  7306285B34C00B2C CRC64;
     MKFNDVYNKH HKIIHHLLKK YNISYNYDEY YQLLLIKMWQ LSQIYKPSSK QSLSSFLFTR
     LNFYLIDLFR QQNQLKDVIL CENNSPTLTE QPTYFNEHDL RLQDIFKLLN QRERLWLKLY
     LEGYKQFEIA EIMSLSLSTI KLIKMSVKRK CQHNFN