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Protein

Heme sensor protein HssS

Gene

hssS

Organism
Staphylococcus aureus (strain NCTC 8325)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Member of the two-component regulatory system HssS/HssR involved in intracellular heme homeostasis and tempering of staphylococcal virulence. HssS functions as a heme sensor histidine kinase which is autophosphorylated at a histidine residue and transfers its phosphate group to an aspartate residue of HssR. HssR/HssS activates the expression of hrtAB, an efflux pump, in response to extracellular heme, hemin, hemoglobin or blood (By similarity).By similarity

Catalytic activityi

ATP + protein L-histidine = ADP + protein N-phospho-L-histidine.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionKinase, Transferase
Biological processTwo-component regulatory system, Virulence
LigandATP-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Heme sensor protein HssS (EC:2.7.13.3)
Gene namesi
Name:hssS
Ordered Locus Names:SAOUHSC_02644
OrganismiStaphylococcus aureus (strain NCTC 8325)
Taxonomic identifieri93061 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcaceaeStaphylococcus
Proteomesi
  • UP000008816 Componenti: Chromosome

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei9 – 29HelicalSequence analysisAdd BLAST21
Transmembranei164 – 184HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Keywords - Cellular componenti

Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003313471 – 457Heme sensor protein HssSAdd BLAST457

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei249Phosphohistidine; by autocatalysisPROSITE-ProRule annotation1

Post-translational modificationi

Autophosphorylated.By similarity

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi93061.SAOUHSC_02644.

Structurei

3D structure databases

ProteinModelPortaliQ2FVQ8.
SMRiQ2FVQ8.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini186 – 238HAMPPROSITE-ProRule annotationAdd BLAST53
Domaini246 – 456Histidine kinasePROSITE-ProRule annotationAdd BLAST211

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105BZU. Bacteria.
ENOG410XNMH. LUCA.
HOGENOMiHOG000079356.
KOiK02484.
OMAiDEYTFIQ.

Family and domain databases

CDDicd06225. HAMP. 1 hit.
Gene3Di3.30.565.10. 1 hit.
InterProiView protein in InterPro
IPR003660. HAMP_dom.
IPR003594. HATPase_C.
IPR005467. His_kinase_dom.
IPR003661. HisK_dim/P.
IPR004358. Sig_transdc_His_kin-like_C.
PfamiView protein in Pfam
PF00672. HAMP. 1 hit.
PF02518. HATPase_c. 1 hit.
PF00512. HisKA. 1 hit.
PRINTSiPR00344. BCTRLSENSOR.
SMARTiView protein in SMART
SM00304. HAMP. 1 hit.
SM00387. HATPase_c. 1 hit.
SM00388. HisKA. 1 hit.
SUPFAMiSSF47384. SSF47384. 1 hit.
SSF55874. SSF55874. 1 hit.
PROSITEiView protein in PROSITE
PS50885. HAMP. 1 hit.
PS50109. HIS_KIN. 1 hit.

Sequencei

Sequence statusi: Complete.

Q2FVQ8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MFKTLYARIA IYSITVILFS ALISFVLTNV YYHYNLKASN DAKIMKTLKE
60 70 80 90 100
ARQYEQSAKP THIQQYFKHL GQMNYQIMTI DQKGHKTFYG EPFREDTLSQ
110 120 130 140 150
NAINNVLNNQ DYHGIKDKPF ALFVTGFFDN VTDNTVGINF KTKDGSIAVF
160 170 180 190 200
MRPDIGETFS EFRTFLAVLL MLLLFISISL VIASTYSIIR PVKKLKLATE
210 220 230 240 250
RLIDGDFETP IKQTRKDEIG TLQYHFNKMR ESLGQVDQMR QHFVQNVSHE
260 270 280 290 300
IKTPLTHIHH LLSELQQTSD KTLRQQYIND IYTITTQLSG LTTELLLLSE
310 320 330 340 350
LDNHQHLLFD DKIQVNQLIK DIIRHEQFAA DEKSLIILAD LESINFLGNQ
360 370 380 390 400
RLLHQALSNL LINAIKYTDV GGAIDIALQH SHNNIIFTIS NDGSPISPQA
410 420 430 440 450
EARLFERFYK VSKHDNSNGL GLAITKSIIE LHHGTIQFTQ SNEYVTTFTI

TLPNNSL
Length:457
Mass (Da):52,375
Last modified:March 21, 2006 - v1
Checksum:i3EE4DB5A89F1D627
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000253 Genomic DNA. Translation: ABD31652.1.
RefSeqiWP_000477329.1. NC_007795.1.
YP_501106.1. NC_007795.1.

Genome annotation databases

EnsemblBacteriaiABD31652; ABD31652; SAOUHSC_02644.
GeneIDi3921206.
KEGGisao:SAOUHSC_02644.
PATRICifig|93061.5.peg.2391.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiHSSS_STAA8
AccessioniPrimary (citable) accession number: Q2FVQ8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: March 21, 2006
Last modified: June 7, 2017
This is version 84 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome