ID   AGRB_STAAB              Reviewed;         187 AA.
AC   Q2YUD1;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-DEC-2005, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=Accessory gene regulator protein B {ECO:0000255|HAMAP-Rule:MF_00784};
DE            EC=3.4.-.- {ECO:0000255|HAMAP-Rule:MF_00784};
GN   Name=agrB {ECO:0000255|HAMAP-Rule:MF_00784}; OrderedLocusNames=SAB1920;
OS   Staphylococcus aureus (strain bovine RF122 / ET3-1).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=273036;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=bovine RF122 / ET3-1;
RX   PubMed=17971880; DOI=10.1371/journal.pone.0001120;
RA   Herron-Olson L., Fitzgerald J.R., Musser J.M., Kapur V.;
RT   "Molecular correlates of host specialization in Staphylococcus aureus.";
RL   PLoS ONE 2:E1120-E1120(2007).
CC   -!- FUNCTION: Essential for the production of a quorum sensing system
CC       signal molecule, the autoinducing peptide (AIP). This quorum sensing
CC       system is responsible for the regulation of the expression of virulence
CC       factor genes. Involved in the proteolytic processing of AgrD, the
CC       precursor of AIP. {ECO:0000255|HAMAP-Rule:MF_00784}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_00784};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00784}.
CC   -!- SIMILARITY: Belongs to the AgrB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00784}.
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DR   EMBL; AJ938182; CAI81609.1; -; Genomic_DNA.
DR   RefSeq; WP_001105699.1; NC_007622.1.
DR   AlphaFoldDB; Q2YUD1; -.
DR   MEROPS; C75.001; -.
DR   KEGG; sab:SAB1920; -.
DR   HOGENOM; CLU_098969_2_2_9; -.
DR   OMA; MKFAIVY; -.
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:0008233; F:peptidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   GO; GO:0009372; P:quorum sensing; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00784; AgrB; 1.
DR   InterPro; IPR006741; AgrB.
DR   Pfam; PF04647; AgrB; 1.
DR   SMART; SM00793; AgrB; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Hydrolase; Membrane; Protease; Quorum sensing;
KW   Transmembrane; Transmembrane helix; Virulence.
FT   CHAIN           1..187
FT                   /note="Accessory gene regulator protein B"
FT                   /id="PRO_1000046839"
FT   TRANSMEM        49..69
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00784"
FT   TRANSMEM        82..102
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00784"
FT   TRANSMEM        106..126
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00784"
FT   TRANSMEM        144..164
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00784"
FT   TRANSMEM        166..186
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00784"
SQ   SEQUENCE   187 AA;  21678 MW;  FB9DEF574AE3BB3C CRC64;
     MNYFDNKIDQ FATYLQKRNN LDHIQFLQVR LGMQIIVGNF LKILVTYSIS IFLSVFLYTL
     VTHLSYMLIR YNAHGAHAKS SILCYIQSIL IFVFVPYFLI NIDINFTYLL ALSIIGLISV
     VIYAPAATKK QPIPIKLVKR KKYVSIIMYL LVMILSLIIH PFYAQFMLLG ILVESITLLP
     IFFPKED