ID A0A0S8HQ18_9BACE Unreviewed; 445 AA.
AC A0A0S8HQ18;
DT 17-FEB-2016, integrated into UniProtKB/TrEMBL.
DT 17-FEB-2016, sequence version 1.
DT 27-MAR-2024, entry version 26.
DE RecName: Full=Signal recognition particle protein {ECO:0000256|HAMAP-Rule:MF_00306};
DE EC=3.6.5.4 {ECO:0000256|HAMAP-Rule:MF_00306};
DE AltName: Full=Fifty-four homolog {ECO:0000256|HAMAP-Rule:MF_00306};
GN Name=ffh {ECO:0000256|HAMAP-Rule:MF_00306};
GN ORFNames=AMS27_04730 {ECO:0000313|EMBL:KPK86596.1};
OS Bacteroides sp. SM23_62_1.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae;
OC Bacteroides.
OX NCBI_TaxID=1703353 {ECO:0000313|EMBL:KPK86596.1, ECO:0000313|Proteomes:UP000051265};
RN [1] {ECO:0000313|EMBL:KPK86596.1, ECO:0000313|Proteomes:UP000051265}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SM23_62_1 {ECO:0000313|EMBL:KPK86596.1};
RX PubMed=25922666; DOI=10.1186/s40168-015-0077-6;
RA Baker B.J., Lazar C.S., Teske A.P., Dick G.J.;
RT "Genomic resolution of linkages in carbon, nitrogen, and sulfur cycling
RT among widespread estuary sediment bacteria.";
RL Microbiome 3:14-14(2015).
CC -!- FUNCTION: Involved in targeting and insertion of nascent membrane
CC proteins into the cytoplasmic membrane. Binds to the hydrophobic signal
CC sequence of the ribosome-nascent chain (RNC) as it emerges from the
CC ribosomes. The SRP-RNC complex is then targeted to the cytoplasmic
CC membrane where it interacts with the SRP receptor FtsY.
CC {ECO:0000256|HAMAP-Rule:MF_00306}.
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:0000256|ARBA:ARBA00035577, ECO:0000256|HAMAP-
CC Rule:MF_00306};
CC -!- SUBUNIT: Part of the signal recognition particle protein translocation
CC system, which is composed of SRP and FtsY. {ECO:0000256|HAMAP-
CC Rule:MF_00306}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00306}.
CC Note=The SRP-RNC complex is targeted to the cytoplasmic membrane.
CC {ECO:0000256|HAMAP-Rule:MF_00306}.
CC -!- DOMAIN: Composed of three domains: the N-terminal N domain, which is
CC responsible for interactions with the ribosome, the central G domain,
CC which binds GTP, and the C-terminal M domain, which binds the RNA and
CC the signal sequence of the RNC. {ECO:0000256|HAMAP-Rule:MF_00306}.
CC -!- SIMILARITY: Belongs to the GTP-binding SRP family. SRP54 subfamily.
CC {ECO:0000256|ARBA:ARBA00005450, ECO:0000256|HAMAP-Rule:MF_00306}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KPK86596.1}.
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DR EMBL; LJUQ01000030; KPK86596.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0S8HQ18; -.
DR PATRIC; fig|1703353.3.peg.1615; -.
DR Proteomes; UP000051265; Unassembled WGS sequence.
DR GO; GO:0048500; C:signal recognition particle; IEA:UniProtKB-UniRule.
DR GO; GO:0008312; F:7S RNA binding; IEA:InterPro.
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; cd18539; SRP_G; 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 Gene3D; 1.10.260.30; Signal recognition particle, SRP54 subunit, M-domain; 1.
DR HAMAP; MF_00306; SRP54; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR036891; Signal_recog_part_SRP54_M_sf.
DR InterPro; IPR013822; Signal_recog_particl_SRP54_hlx.
DR InterPro; IPR004125; Signal_recog_particle_SRP54_M.
DR InterPro; IPR004780; SRP.
DR InterPro; IPR022941; SRP54.
DR InterPro; IPR000897; SRP54_GTPase_dom.
DR InterPro; IPR042101; SRP54_N_sf.
DR NCBIfam; TIGR00959; ffh; 1.
DR PANTHER; PTHR11564:SF5; SIGNAL RECOGNITION PARTICLE 54 KDA PROTEIN; 1.
DR PANTHER; PTHR11564; SIGNAL RECOGNITION PARTICLE 54K PROTEIN SRP54; 1.
DR Pfam; PF00448; SRP54; 1.
DR Pfam; PF02881; SRP54_N; 1.
DR Pfam; PF02978; SRP_SPB; 1.
DR SMART; SM00382; AAA; 1.
DR SMART; SM00962; SRP54; 1.
DR SMART; SM00963; SRP54_N; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR SUPFAM; SSF47446; Signal peptide-binding domain; 1.
DR PROSITE; PS00300; SRP54; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00306};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|HAMAP-
KW Rule:MF_00306};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00306};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00306};
KW Ribonucleoprotein {ECO:0000256|ARBA:ARBA00023274, ECO:0000256|HAMAP-
KW Rule:MF_00306};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW Rule:MF_00306};
KW Signal recognition particle {ECO:0000256|ARBA:ARBA00023135,
KW ECO:0000256|HAMAP-Rule:MF_00306}.
FT DOMAIN 268..281
FT /note="SRP54-type proteins GTP-binding"
FT /evidence="ECO:0000259|PROSITE:PS00300"
FT BINDING 106..113
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 189..193
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 247..250
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
SQ SEQUENCE 445 AA; 49294 MW; 664146513BA9E992 CRC64;
MFENLTDRLD KAFRLLKGQG RITEINVAET LKDVRKALLD ADVHYKIAKS FTDTVKEKAL
GEKILAAVQP SQMMVKIVHD ELALLMGGET ADLNLKGNPA VILVAGLQGS GKTTFAAKLA
HYVKKKKGRT PLLVAGDIYR PAAIEQLKIL GEQVETPVYS DENSKDPVRI CKDAVRSAKL
QGQNVVIIDT AGRLAIDEEM MKEVAAIKNT VTPQEILFIV DSMTGQDAVN TAKEFNDRLD
FHGVVLTKLD GDTRGGAALS IKTVVQKPIK FVSIGEKPDA LDVFHPERMA DRILGMGDIV
TLVEKAQEQY DVEEARKIQK KIAKNQFNFN DFISQVQQIK KMGNIQDLAS MIPGMGKAIK
NLDIDDDAFK GIEAIIQSMT PQEREDPSVL NGSRRKRIAN GSGTTIQDVN RLIKQFDETR
KMMRMAQSGK NMMARMRNMT QLKGN
//
