SRP54_RICFE
ID SRP54_RICFE Reviewed; 449 AA.
AC Q4UKH4;
DT 15-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT 15-MAY-2007, sequence version 2.
DT 03-AUG-2022, entry version 105.
DE RecName: Full=Signal recognition particle protein {ECO:0000255|HAMAP-Rule:MF_00306};
DE AltName: Full=Fifty-four homolog {ECO:0000255|HAMAP-Rule:MF_00306};
GN Name=ffh {ECO:0000255|HAMAP-Rule:MF_00306}; OrderedLocusNames=RF_1106;
OS Rickettsia felis (strain ATCC VR-1525 / URRWXCal2) (Rickettsia azadi).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX NCBI_TaxID=315456;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC VR-1525 / URRWXCal2;
RX PubMed=15984913; DOI=10.1371/journal.pbio.0030248;
RA Ogata H., Renesto P., Audic S., Robert C., Blanc G., Fournier P.-E.,
RA Parinello H., Claverie J.-M., Raoult D.;
RT "The genome sequence of Rickettsia felis identifies the first putative
RT conjugative plasmid in an obligate intracellular parasite.";
RL PLoS Biol. 3:1-12(2005).
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. Interaction
CC with FtsY leads to the transfer of the RNC complex to the Sec
CC translocase for insertion into the membrane, the hydrolysis of GTP by
CC both Ffh and FtsY, and the dissociation of the SRP-FtsY complex into
CC the individual components. {ECO:0000255|HAMAP-Rule:MF_00306}.
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_00306}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00306}.
CC Note=The SRP-RNC complex is targeted to the cytoplasmic membrane.
CC {ECO:0000255|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:0000255|HAMAP-Rule:MF_00306}.
CC -!- SIMILARITY: Belongs to the GTP-binding SRP family. SRP54 subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00306}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAY61957.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000053; AAY61957.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_041405362.1; NC_007109.1.
DR AlphaFoldDB; Q4UKH4; -.
DR SMR; Q4UKH4; -.
DR STRING; 315456.RF_1106; -.
DR EnsemblBacteria; AAY61957; AAY61957; RF_1106.
DR KEGG; rfe:RF_1106; -.
DR eggNOG; COG0541; Bacteria.
DR HOGENOM; CLU_009301_6_0_5; -.
DR OrthoDB; 656414at2; -.
DR Proteomes; UP000008548; Chromosome.
DR GO; GO:0048500; C:signal recognition particle; IEA:UniProtKB-UniRule.
DR GO; GO:0008312; F:7S RNA binding; 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 Gene3D; 1.10.260.30; -; 1.
DR Gene3D; 1.20.120.140; -; 1.
DR Gene3D; 3.40.50.300; -; 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 PANTHER; PTHR11564; PTHR11564; 1.
DR PANTHER; PTHR11564:SF7; PTHR11564:SF7; 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; SSF47446; SSF47446; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR TIGRFAMs; TIGR00959; ffh; 1.
DR PROSITE; PS00300; SRP54; 1.
PE 3: Inferred from homology;
KW Cytoplasm; GTP-binding; Nucleotide-binding; Ribonucleoprotein; RNA-binding;
KW Signal recognition particle.
FT CHAIN 1..449
FT /note="Signal recognition particle protein"
FT /id="PRO_0000286499"
FT BINDING 109..116
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00306"
FT BINDING 191..195
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00306"
FT BINDING 249..252
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00306"
SQ SEQUENCE 449 AA; 49318 MW; EA73174669C97477 CRC64;
MFKTLTQNLT KIFDKLVSSG ILTEAQIDAA MRDIRVALLE SDVALPVIKD FIAEVKQKAL
GQEVIKSVSP GQMIIKIIHE EMINLLASSE SETKLNLNSK PPVNFLMVGL QGSGKTTASS
KLALRLKNQN KKVLLVSLDT YRPAAQEQLA ILANSVQINS LPIVQGEKPL DIVKRAIAEA
KISAYGVVIY DTAGRTQIDK EMMEEALAIK KIVEPTETLL VIDSMTGQDA VVTANSFNEK
LEISGLILSR IDGDSKGGAA LSVKYITKKP IKFLSSGEKL TDLEEFDAER LASRILDMGD
IISFVEKAAS IVDREEAEKT AAKLKKGKFD LNDYLQQMRS IKKMGGFGSI LSMLPGSGKI
MDQIDQSKLN SKIIEHQEAI ILSMTLKERE NPDIINASRR KRIAAGAGTT VQKVNILLKQ
YKQISEMMKK ASKMNPKNLL RNGIGKLFS
