ID A0A2A2K9S9_9BILA Unreviewed; 444 AA.
AC A0A2A2K9S9;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 08-NOV-2023, entry version 16.
DE RecName: Full=Signal recognition particle 54 kDa protein {ECO:0000256|RuleBase:RU364034};
GN ORFNames=WR25_06750 {ECO:0000313|EMBL:PAV70685.1};
OS Diploscapter pachys.
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Rhabditina; Rhabditomorpha; Rhabditoidea; Rhabditidae; Diploscapter.
OX NCBI_TaxID=2018661 {ECO:0000313|EMBL:PAV70685.1, ECO:0000313|Proteomes:UP000218231};
RN [1] {ECO:0000313|EMBL:PAV70685.1, ECO:0000313|Proteomes:UP000218231}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PF1309 {ECO:0000313|EMBL:PAV70685.1};
RA Fradin H., Zegar C., Gutwein M., Lucas J., Kovtun M., Corcoran D.,
RA Baugh L.R., Kiontke K., Gunsalus K., Fitch D.H., Piano F.;
RT "Genome architecture and evolution of a unichromosomal asexual nematode.";
RL Curr. Biol. 0:0-0(2017).
CC -!- FUNCTION: Component of the signal recognition particle (SRP) complex, a
CC ribonucleoprotein complex that mediates the cotranslational targeting
CC of secretory and membrane proteins to the endoplasmic reticulum (ER).
CC {ECO:0000256|RuleBase:RU364034}.
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:ARBA00035589};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:19670;
CC Evidence={ECO:0000256|ARBA:ARBA00035589};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|RuleBase:RU364034}. Endoplasmic reticulum
CC {ECO:0000256|ARBA:ARBA00004240}.
CC -!- DOMAIN: The M domain binds the 7SL RNA in presence of SRP19 and binds
CC the signal sequence of presecretory proteins.
CC {ECO:0000256|RuleBase:RU364034}.
CC -!- DOMAIN: The NG domain, also named G domain, is a special guanosine
CC triphosphatase (GTPase) domain, which binds GTP and forms a guanosine
CC 5'-triphosphate (GTP)-dependent complex with a homologous NG domain in
CC the SRP receptor subunit SRPRA. The two NG domains undergo cooperative
CC rearrangements upon their assembly, which culminate in the reciprocal
CC activation of the GTPase activity of one another. SRP receptor
CC compaction upon binding with cargo-loaded SRP and GTPase rearrangement
CC drive SRP-mediated cotranslational protein translocation into the ER.
CC {ECO:0000256|RuleBase:RU364034}.
CC -!- SIMILARITY: Belongs to the GTP-binding SRP family. SRP54 subfamily.
CC {ECO:0000256|RuleBase:RU364034}.
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:PAV70685.1}.
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DR EMBL; LIAE01009225; PAV70685.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2A2K9S9; -.
DR Proteomes; UP000218231; Unassembled WGS sequence.
DR GO; GO:0005783; C:endoplasmic reticulum; IEA:UniProtKB-SubCell.
DR GO; GO:0005786; C:signal recognition particle, endoplasmic reticulum targeting; IEA:UniProtKB-UniRule.
DR GO; GO:0008312; F:7S RNA binding; IEA:UniProtKB-UniRule.
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:UniProtKB-UniRule.
DR CDD; cd17875; SRP54_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 InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR036891; Signal_recog_part_SRP54_M_sf.
DR InterPro; IPR004125; Signal_recog_particle_SRP54_M.
DR InterPro; IPR022941; SRP54.
DR InterPro; IPR006325; SRP54_euk.
DR InterPro; IPR000897; SRP54_GTPase_dom.
DR InterPro; IPR042101; SRP54_N_sf.
DR NCBIfam; TIGR01425; SRP54_euk; 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; PF02978; SRP_SPB; 1.
DR SMART; SM00382; AAA; 1.
DR SMART; SM00962; SRP54; 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|RuleBase:RU364034};
KW Endoplasmic reticulum {ECO:0000256|ARBA:ARBA00022824};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|RuleBase:RU364034};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|RuleBase:RU364034};
KW Reference proteome {ECO:0000313|Proteomes:UP000218231};
KW Ribonucleoprotein {ECO:0000256|RuleBase:RU364034};
KW RNA-binding {ECO:0000256|RuleBase:RU364034};
KW Signal recognition particle {ECO:0000256|RuleBase:RU364034}.
FT DOMAIN 215..228
FT /note="SRP54-type proteins GTP-binding"
FT /evidence="ECO:0000259|PROSITE:PS00300"
SQ SEQUENCE 444 AA; 49329 MW; A3C83C410BD9175B CRC64;
MFRKAMNFEE MTGGVNKRRV IQRAVFNELL KLVDPHVEEF KPKKGKPNVI MFVGLQGSGK
TTTCTKMAYY YQRKGWKTCL ICADTFRAGA FDQLKQNATK ARIPFYGSYS EIDPVKIAYE
GVEKFKKEGF EIVIVDTSGR HKQEASLFEE MLQVSNAVQP DNVVFVMDAS IGQACEAQAK
AFSQTVDVGS VIITKLDSHA KGGGALSAVA VTKSPVIFIG TGEHIDDFEI FKPKSFVQKL
LGMGDIEGLV DMVKDIGIED SVELANRLKH GQFTLRDMYE QFQNIMKMGP LSQIMSAIPG
LSDIMNKGNE KESVMKLKRM MTIMDSMSDK ELDHPKASDL FTKEPTRLAR VAKGSGTSQA
DVRELITQYK KFSDMIKKMG PMIGKNGAMD PSRMNPAQMS KLTQQYSKMI DPKMFAQMGG
AGGFQHLLQQ MTKAESGMMG GKKK
//
