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SRRB_STAAR
ID   SRRB_STAAR              Reviewed;         583 AA.
AC   Q6GGK7;
DT   27-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   27-SEP-2005, sequence version 2.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=Sensor protein SrrB;
DE            EC=2.7.13.3;
DE   AltName: Full=Staphylococcal respiratory response protein B;
GN   Name=srrB; OrderedLocusNames=SAR1567;
OS   Staphylococcus aureus (strain MRSA252).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=282458;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MRSA252;
RX   PubMed=15213324; DOI=10.1073/pnas.0402521101;
RA   Holden M.T.G., Feil E.J., Lindsay J.A., Peacock S.J., Day N.P.J.,
RA   Enright M.C., Foster T.J., Moore C.E., Hurst L., Atkin R., Barron A.,
RA   Bason N., Bentley S.D., Chillingworth C., Chillingworth T., Churcher C.,
RA   Clark L., Corton C., Cronin A., Doggett J., Dowd L., Feltwell T., Hance Z.,
RA   Harris B., Hauser H., Holroyd S., Jagels K., James K.D., Lennard N.,
RA   Line A., Mayes R., Moule S., Mungall K., Ormond D., Quail M.A.,
RA   Rabbinowitsch E., Rutherford K.M., Sanders M., Sharp S., Simmonds M.,
RA   Stevens K., Whitehead S., Barrell B.G., Spratt B.G., Parkhill J.;
RT   "Complete genomes of two clinical Staphylococcus aureus strains: evidence
RT   for the rapid evolution of virulence and drug resistance.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:9786-9791(2004).
CC   -!- FUNCTION: Member of the two-component regulatory system SrrA/SrrB,
CC       which is involved in the global regulation of staphylococcal virulence
CC       factors in response to environmental oxygen levels as well as biofilm
CC       formation. Also plays an essential role in host-derived nitric oxide
CC       resistance by regulating hmp/flavohemoglobin, an enzyme that detoxifies
CC       nitric oxide by converting it to nitrate. Functions as a sensor protein
CC       kinase which is autophosphorylated at a histidine residue and transfers
CC       its phosphate group to SrrA. In turn, SrrA binds to the upstream
CC       promoter regions of the target genes to positively and negatively
CC       regulate their expression. {ECO:0000250|UniProtKB:Q5HFT1}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + protein L-histidine = ADP + protein N-phospho-L-
CC         histidine.; EC=2.7.13.3;
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250}; Multi-pass membrane
CC       protein {ECO:0000250}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAG40563.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; BX571856; CAG40563.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_000987777.1; NC_002952.2.
DR   AlphaFoldDB; Q6GGK7; -.
DR   SMR; Q6GGK7; -.
DR   KEGG; sar:SAR1567; -.
DR   HOGENOM; CLU_000445_89_2_9; -.
DR   OrthoDB; 1827824at2; -.
DR   Proteomes; UP000000596; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0000155; F:phosphorelay sensor kinase activity; IEA:InterPro.
DR   CDD; cd00082; HisKA; 1.
DR   Gene3D; 3.30.565.10; -; 1.
DR   InterPro; IPR003660; HAMP_dom.
DR   InterPro; IPR003594; HATPase_C.
DR   InterPro; IPR036890; HATPase_C_sf.
DR   InterPro; IPR005467; His_kinase_dom.
DR   InterPro; IPR003661; HisK_dim/P.
DR   InterPro; IPR036097; HisK_dim/P_sf.
DR   InterPro; IPR041328; HisK_sensor.
DR   InterPro; IPR004358; Sig_transdc_His_kin-like_C.
DR   Pfam; PF00672; HAMP; 1.
DR   Pfam; PF02518; HATPase_c; 1.
DR   Pfam; PF18698; HisK_sensor; 1.
DR   Pfam; PF00512; HisKA; 1.
DR   PRINTS; PR00344; BCTRLSENSOR.
DR   SMART; SM00304; HAMP; 1.
DR   SMART; SM00387; HATPase_c; 1.
DR   SMART; SM00388; HisKA; 1.
DR   SUPFAM; SSF47384; SSF47384; 1.
DR   SUPFAM; SSF55874; SSF55874; 1.
DR   PROSITE; PS50885; HAMP; 1.
DR   PROSITE; PS50109; HIS_KIN; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cell membrane; Kinase; Membrane; Nucleotide-binding;
KW   Phosphoprotein; Transferase; Transmembrane; Transmembrane helix;
KW   Two-component regulatory system.
FT   CHAIN           1..583
FT                   /note="Sensor protein SrrB"
FT                   /id="PRO_0000074885"
FT   TOPO_DOM        1..11
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        12..32
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        33..174
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        175..195
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        196..583
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          197..249
FT                   /note="HAMP"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00102"
FT   DOMAIN          366..583
FT                   /note="Histidine kinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00107"
FT   MOD_RES         369
FT                   /note="Phosphohistidine; by autocatalysis"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00107"
SQ   SEQUENCE   583 AA;  66120 MW;  030CA3683B0617F5 CRC64;
     MMSRLNSVVI KLWLTIILIV TTVLILLSIA LITFMQYYFT QETENAIRED ARRISSLVEQ
     SHNKEEAIKY SQTLIENPGG LMIINNKHRQ STASLSNIKK QMLNEVVNND HFDDVFDKGK
     SVTRNVTIKE KGSSQTYILL GYPTKAQKNS HSKYSGVFIY KDLKSIEDTN NAITIITIIT
     AVIFLTITTV FAFFLSSRIT KPLRRLRDQA TRVSEGDYSY KPSVTTKDEI GQLSQAFNQM
     STEIEEHVDA LSTSKNIRDS LINSMVEGVL GINESRQIIL SNKMANDIMD NIDEDAKAFL
     LRQIEDTFKS KQTEMRDLEM NTRFFVVTTS YIDKIEQGGK SGVVVTVRDM TNEHNLDQMK
     KDFIANVSHE LRTPISLLQG YTESIVDGIV TEPDEIKESL AIVLDESKRL NRLVNELLNV
     ARMDAEGLSV NKEVQPIAAL LDKMKIKYRQ QADDLGLNMT FNYCKKRVWT YDMDRMDQVL
     TNLIDNASRY TKPGDEIAIT CDENESEDIL YIKDTGTGIA PEHLQQVFDR FYKVDAARTR
     GKQGTGLGLF ICKMIIEEHG GSIDVKSELG KGTTFIIKLP KPE
 
 
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