ID D0MHG2_RHOM4 Unreviewed; 450 AA.
AC D0MHG2;
DT 15-DEC-2009, integrated into UniProtKB/TrEMBL.
DT 15-DEC-2009, sequence version 1.
DT 27-MAR-2024, entry version 80.
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 OrderedLocusNames=Rmar_1027 {ECO:0000313|EMBL:ACY47920.1};
OS Rhodothermus marinus (strain ATCC 43812 / DSM 4252 / R-10) (Rhodothermus
OS obamensis).
OC Bacteria; Rhodothermota; Rhodothermia; Rhodothermales; Rhodothermaceae;
OC Rhodothermus.
OX NCBI_TaxID=518766 {ECO:0000313|EMBL:ACY47920.1, ECO:0000313|Proteomes:UP000002221};
RN [1] {ECO:0000313|EMBL:ACY47920.1, ECO:0000313|Proteomes:UP000002221}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43812 / DSM 4252 / R-10
RC {ECO:0000313|Proteomes:UP000002221};
RX PubMed=21304669; DOI=10.4056/sigs.46736;
RA Nolan M., Tindall B.J., Pomrenke H., Lapidus A., Copeland A.,
RA Glavina Del Rio T., Lucas S., Chen F., Tice H., Cheng J.F., Saunders E.,
RA Han C., Bruce D., Goodwin L., Chain P., Pitluck S., Ovchinikova G.,
RA Pati A., Ivanova N., Mavromatis K., Chen A., Palaniappan K., Land M.,
RA Hauser L., Chang Y.J., Jeffries C.D., Brettin T., Goker M., Bristow J.,
RA Eisen J.A., Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.,
RA Detter J.C.;
RT "Complete genome sequence of Rhodothermus marinus type strain (R-10).";
RL Stand. Genomic Sci. 1:283-291(2009).
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 ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001807; ACY47920.1; -; Genomic_DNA.
DR RefSeq; WP_012843532.1; NC_013501.1.
DR AlphaFoldDB; D0MHG2; -.
DR STRING; 518766.Rmar_1027; -.
DR KEGG; rmr:Rmar_1027; -.
DR eggNOG; COG0541; Bacteria.
DR HOGENOM; CLU_009301_6_0_10; -.
DR OrthoDB; 9804720at2; -.
DR Proteomes; UP000002221; 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: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}; Reference proteome {ECO:0000313|Proteomes:UP000002221};
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 272..285
FT /note="SRP54-type proteins GTP-binding"
FT /evidence="ECO:0000259|PROSITE:PS00300"
FT BINDING 107..114
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 193..197
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 251..254
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
SQ SEQUENCE 450 AA; 50233 MW; B1B92CF7C738D3A0 CRC64;
MFESLTEKLE AALKSVSGQG RITELNIAGT MREIRRALLE ADVNYQVARE FTERVKEKAL
GTKVLSSVSP GQQLVKIVYD ELVRLLGSEQ VDINLSPTPP TVILVAGLQG SGKTTFCAKL
ALYFKKKGRA PLLAAADVYR PAAVEQLKTL AASINVPVYS IEENGQVVQD AVRVAREAVQ
EARRTARDIV IIDTAGRLHI DEAMMQEVEQ IKEAVRPHEI LFVVDSMTGQ DAVNTAKAFN
ERLDFDGVVL TKLDGDTRGG AALSIRSVVN KPIKFASTGE KLDALTPFYP DRMAQRILGM
GDVISLVERA QEQYDARQAE KLRRKLRSAD FNLEDFYEQL QRIKKMGSLR ELIGMIPGLG
RYVKDLDVDD DAFKHIEAMI LSMTPEERRN PDIIDASRRR RIARGSGMEV SDVNQLLRQF
KEMRKMMKSM SKLMGKGRAV DLRQLLGGRL
//
