ID   SPX_STAAM               Reviewed;         131 AA.
AC   P60378; Q99V93;
DT   16-FEB-2004, integrated into UniProtKB/Swiss-Prot.
DT   16-FEB-2004, sequence version 1.
DT   03-AUG-2022, entry version 117.
DE   RecName: Full=Global transcriptional regulator Spx {ECO:0000255|HAMAP-Rule:MF_01132};
GN   Name=spx {ECO:0000255|HAMAP-Rule:MF_01132}; OrderedLocusNames=SAV0997;
OS   Staphylococcus aureus (strain Mu50 / ATCC 700699).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=158878;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Mu50 / ATCC 700699;
RX   PubMed=11418146; DOI=10.1016/s0140-6736(00)04403-2;
RA   Kuroda M., Ohta T., Uchiyama I., Baba T., Yuzawa H., Kobayashi I., Cui L.,
RA   Oguchi A., Aoki K., Nagai Y., Lian J.-Q., Ito T., Kanamori M.,
RA   Matsumaru H., Maruyama A., Murakami H., Hosoyama A., Mizutani-Ui Y.,
RA   Takahashi N.K., Sawano T., Inoue R., Kaito C., Sekimizu K., Hirakawa H.,
RA   Kuhara S., Goto S., Yabuzaki J., Kanehisa M., Yamashita A., Oshima K.,
RA   Furuya K., Yoshino C., Shiba T., Hattori M., Ogasawara N., Hayashi H.,
RA   Hiramatsu K.;
RT   "Whole genome sequencing of meticillin-resistant Staphylococcus aureus.";
RL   Lancet 357:1225-1240(2001).
CC   -!- FUNCTION: Global transcriptional regulator that plays a key role in
CC       stress response and exerts either positive or negative regulation of
CC       genes. Acts by interacting with the C-terminal domain of the alpha
CC       subunit of the RNA polymerase (RNAP). This interaction can enhance
CC       binding of RNAP to the promoter region of target genes and stimulate
CC       their transcription, or block interaction of RNAP with activator.
CC       {ECO:0000255|HAMAP-Rule:MF_01132}.
CC   -!- SUBUNIT: Interacts with the C-terminal domain of the alpha subunit of
CC       the RNAP. {ECO:0000255|HAMAP-Rule:MF_01132}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01132}.
CC   -!- SIMILARITY: Belongs to the ArsC family. Spx subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01132}.
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DR   EMBL; BA000017; BAB57159.1; -; Genomic_DNA.
DR   RefSeq; WP_000258003.1; NC_002758.2.
DR   AlphaFoldDB; P60378; -.
DR   SMR; P60378; -.
DR   World-2DPAGE; 0002:P60378; -.
DR   PaxDb; P60378; -.
DR   EnsemblBacteria; BAB57159; BAB57159; SAV0997.
DR   GeneID; 66839191; -.
DR   KEGG; sav:SAV0997; -.
DR   HOGENOM; CLU_116644_1_1_9; -.
DR   OMA; IMIDDKR; -.
DR   PhylomeDB; P60378; -.
DR   BioCyc; SAUR158878:SAV_RS05395-MON; -.
DR   PHI-base; PHI:7702; -.
DR   Proteomes; UP000002481; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0045892; P:negative regulation of transcription, DNA-templated; IEA:InterPro.
DR   HAMAP; MF_01132; Spx; 1.
DR   InterPro; IPR006660; Arsenate_reductase-like.
DR   InterPro; IPR023731; Spx.
DR   InterPro; IPR036249; Thioredoxin-like_sf.
DR   InterPro; IPR006504; Tscrpt_reg_Spx/MgsR.
DR   PANTHER; PTHR30041; PTHR30041; 1.
DR   Pfam; PF03960; ArsC; 1.
DR   SUPFAM; SSF52833; SSF52833; 1.
DR   TIGRFAMs; TIGR01617; arsC_related; 1.
DR   PROSITE; PS51353; ARSC; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Disulfide bond; Redox-active center; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..131
FT                   /note="Global transcriptional regulator Spx"
FT                   /id="PRO_0000162563"
FT   DISULFID        10..13
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01132"
SQ   SEQUENCE   131 AA;  15441 MW;  89F67A54666699BF CRC64;
     MVTLFTSPSC TSCRKAKAWL QEHDIPYTER NIFSEHLTID EIKQILKMTE DGTDEIISTR
     SKTYQKLNVD IDSLPLQDLY SIIQDNPGLL RRPIILDNKR LQVGYNEDEI RRFLPRKVRT
     FQLQEAQRMV D