ID   HSSS_STAAE              Reviewed;         457 AA.
AC   A6QJK4;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   25-MAY-2022, entry version 93.
DE   RecName: Full=Heme sensor protein HssS;
DE            EC=2.7.13.3;
GN   Name=hssS; OrderedLocusNames=NWMN_2264;
OS   Staphylococcus aureus (strain Newman).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=426430;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Newman;
RX   PubMed=17951380; DOI=10.1128/jb.01000-07;
RA   Baba T., Bae T., Schneewind O., Takeuchi F., Hiramatsu K.;
RT   "Genome sequence of Staphylococcus aureus strain Newman and comparative
RT   analysis of staphylococcal genomes: polymorphism and evolution of two major
RT   pathogenicity islands.";
RL   J. Bacteriol. 190:300-310(2008).
RN   [2]
RP   FUNCTION IN REGULATION OF HRTAB EXPRESSION, AND MODULATION OF VIRULENCE.
RX   PubMed=18005689; DOI=10.1016/j.chom.2007.03.001;
RA   Torres V.J., Stauff D.L., Pishchany G., Bezbradica J.S., Gordy L.E.,
RA   Iturregui J., Anderson K.L., Dunman P.M., Joyce S., Skaar E.P.;
RT   "A Staphylococcus aureus regulatory system that responds to host heme and
RT   modulates virulence.";
RL   Cell Host Microbe 1:109-119(2007).
RN   [3]
RP   FUNCTION, REGULATION, PHOSPHORYLATION AT HIS-249, AND MUTAGENESIS OF
RP   HIS-249.
RX   PubMed=17635909; DOI=10.1074/jbc.m703797200;
RA   Stauff D.L., Torres V.J., Skaar E.P.;
RT   "Signaling and DNA-binding activities of the Staphylococcus aureus HssR-
RT   HssS two-component system required for heme sensing.";
RL   J. Biol. Chem. 282:26111-26121(2007).
CC   -!- FUNCTION: Member of the two-component regulatory system HssS/HssR
CC       involved in intracellular heme homeostasis and tempering of
CC       staphylococcal virulence. HssS functions as a heme sensor histidine
CC       kinase which is autophosphorylated at a histidine residue and transfers
CC       its phosphate group to an aspartate residue of HssR. HssR/HssS
CC       activates the expression of hrtAB, an efflux pump, in response to
CC       extracellular heme, hemin, hemoglobin or blood.
CC       {ECO:0000269|PubMed:17635909, ECO:0000269|PubMed:18005689}.
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   -!- PTM: Autophosphorylated. {ECO:0000269|PubMed:17635909}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AP009351; BAF68536.1; -; Genomic_DNA.
DR   RefSeq; WP_000477329.1; NZ_CP023390.1.
DR   AlphaFoldDB; A6QJK4; -.
DR   SMR; A6QJK4; -.
DR   iPTMnet; A6QJK4; -.
DR   EnsemblBacteria; BAF68536; BAF68536; NWMN_2264.
DR   KEGG; sae:NWMN_2264; -.
DR   HOGENOM; CLU_000445_89_6_9; -.
DR   OMA; IDNIAHE; -.
DR   Proteomes; UP000006386; 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; IPR004358; Sig_transdc_His_kin-like_C.
DR   Pfam; PF00672; HAMP; 1.
DR   Pfam; PF02518; HATPase_c; 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   1: Evidence at protein level;
KW   ATP-binding; Cell membrane; Kinase; Membrane; Nucleotide-binding;
KW   Phosphoprotein; Transferase; Transmembrane; Transmembrane helix;
KW   Two-component regulatory system; Virulence.
FT   CHAIN           1..457
FT                   /note="Heme sensor protein HssS"
FT                   /id="PRO_0000331348"
FT   TRANSMEM        9..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        164..184
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          186..238
FT                   /note="HAMP"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00102"
FT   DOMAIN          246..456
FT                   /note="Histidine kinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00107"
FT   MOD_RES         249
FT                   /note="Phosphohistidine; by autocatalysis"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00107,
FT                   ECO:0000269|PubMed:17635909"
FT   MUTAGEN         249
FT                   /note="H->A: Abolishes autophosphorylation."
FT                   /evidence="ECO:0000269|PubMed:17635909"
SQ   SEQUENCE   457 AA;  52375 MW;  3EE4DB5A89F1D627 CRC64;
     MFKTLYARIA IYSITVILFS ALISFVLTNV YYHYNLKASN DAKIMKTLKE ARQYEQSAKP
     THIQQYFKHL GQMNYQIMTI DQKGHKTFYG EPFREDTLSQ NAINNVLNNQ DYHGIKDKPF
     ALFVTGFFDN VTDNTVGINF KTKDGSIAVF MRPDIGETFS EFRTFLAVLL MLLLFISISL
     VIASTYSIIR PVKKLKLATE RLIDGDFETP IKQTRKDEIG TLQYHFNKMR ESLGQVDQMR
     QHFVQNVSHE IKTPLTHIHH LLSELQQTSD KTLRQQYIND IYTITTQLSG LTTELLLLSE
     LDNHQHLLFD DKIQVNQLIK DIIRHEQFAA DEKSLIILAD LESINFLGNQ RLLHQALSNL
     LINAIKYTDV GGAIDIALQH SHNNIIFTIS NDGSPISPQA EARLFERFYK VSKHDNSNGL
     GLAITKSIIE LHHGTIQFTQ SNEYVTTFTI TLPNNSL