ID   FTSY_BUCAP              Reviewed;         351 AA.
AC   Q8KA77;
DT   15-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   27-MAR-2024, entry version 129.
DE   RecName: Full=Signal recognition particle receptor FtsY {ECO:0000255|HAMAP-Rule:MF_00920};
DE            Short=SRP receptor {ECO:0000255|HAMAP-Rule:MF_00920};
DE            EC=3.6.5.4 {ECO:0000255|HAMAP-Rule:MF_00920};
GN   Name=ftsY {ECO:0000255|HAMAP-Rule:MF_00920};
GN   OrderedLocusNames=BUsg_025;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- FUNCTION: Involved in targeting and insertion of nascent membrane
CC       proteins into the cytoplasmic membrane. Acts as a receptor for the
CC       complex formed by the signal recognition particle (SRP) and the
CC       ribosome-nascent chain (RNC). Interaction with SRP-RNC leads to the
CC       transfer of the RNC complex to the Sec translocase for insertion into
CC       the membrane, the hydrolysis of GTP by both Ffh and FtsY, and the
CC       dissociation of the SRP-FtsY complex into the individual components.
CC       {ECO:0000255|HAMAP-Rule:MF_00920}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=GTP + H2O = GDP + H(+) + phosphate; Xref=Rhea:RHEA:19669,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:37565,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:58189; EC=3.6.5.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00920};
CC   -!- SUBUNIT: Part of the signal recognition particle protein translocation
CC       system, which is composed of SRP and FtsY. SRP is a ribonucleoprotein
CC       composed of Ffh and a 4.5S RNA molecule. {ECO:0000255|HAMAP-
CC       Rule:MF_00920}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane; Peripheral membrane protein;
CC       Cytoplasmic side. Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00920}.
CC   -!- SIMILARITY: Belongs to the GTP-binding SRP family. FtsY subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00920}.
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DR   EMBL; AE013218; AAM67596.1; -; Genomic_DNA.
DR   RefSeq; WP_011053562.1; NC_004061.1.
DR   AlphaFoldDB; Q8KA77; -.
DR   SMR; Q8KA77; -.
DR   STRING; 198804.BUsg_025; -.
DR   GeneID; 75259107; -.
DR   KEGG; bas:BUsg_025; -.
DR   eggNOG; COG0552; Bacteria.
DR   HOGENOM; CLU_009301_3_0_6; -.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006614; P:SRP-dependent cotranslational protein targeting to membrane; IEA:InterPro.
DR   CDD; cd17874; FtsY; 1.
DR   Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR   Gene3D; 1.20.120.140; Signal recognition particle SRP54, nucleotide-binding domain; 1.
DR   HAMAP; MF_00920; FtsY; 1.
DR   InterPro; IPR003593; AAA+_ATPase.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR013822; Signal_recog_particl_SRP54_hlx.
DR   InterPro; IPR004390; SR_rcpt_FtsY.
DR   InterPro; IPR036225; SRP/SRP_N.
DR   InterPro; IPR000897; SRP54_GTPase_dom.
DR   InterPro; IPR042101; SRP54_N_sf.
DR   NCBIfam; TIGR00064; ftsY; 1.
DR   PANTHER; PTHR43134:SF7; CELL DIVISION PROTEIN FTSY HOMOLOG, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR43134; SIGNAL RECOGNITION PARTICLE RECEPTOR SUBUNIT ALPHA; 1.
DR   Pfam; PF00448; SRP54; 1.
DR   Pfam; PF02881; SRP54_N; 1.
DR   SMART; SM00382; AAA; 1.
DR   SMART; SM00962; SRP54; 1.
DR   SMART; SM00963; SRP54_N; 1.
DR   SUPFAM; SSF47364; Domain of the SRP/SRP receptor G-proteins; 1.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR   PROSITE; PS00300; SRP54; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Cytoplasm; GTP-binding; Hydrolase; Membrane;
KW   Nucleotide-binding; Receptor.
FT   CHAIN           1..351
FT                   /note="Signal recognition particle receptor FtsY"
FT                   /id="PRO_0000101129"
FT   BINDING         156..163
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00920"
FT   BINDING         238..242
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00920"
FT   BINDING         302..305
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00920"
SQ   SEQUENCE   351 AA;  39470 MW;  1CA5A59A4B6E7FF3 CRC64;
     MNFDKKNSFF SWINSKIKKN NKKEKKENIL LKKEKEGIHT IQNIDNKKID FLFKLKNSLN
     KTKQFFGDSI SRIFLSKKID DAFFEELEDT MLLSDIGVHT TDQIISKLIN DATHKELKNP
     EKVYFLLKEH MYSILNRVEK PLKISNHTPF VILVVGINGT GKTTTVSKLA KKYKLAGKSV
     MLAAADTFRA AGIEQLQILG KRNNIPVISQ SSGSDPASVA FDAVKSAISK KIDVLIIDTA
     GRLHNKLHLL EELKKMVRVI KKLNLSAPHE IMLIIDACNG QNTIKQTEMF HKAINLTGLV
     ITKLDGTAKG GVIFSLANQF LIPIRYIGIG EKTTDLVVFN SNDFIKSIFV K
//