SRP54_SULAC
ID SRP54_SULAC Reviewed; 444 AA.
AC O07853; Q4J982;
DT 11-JAN-2001, integrated into UniProtKB/Swiss-Prot.
DT 30-AUG-2005, sequence version 2.
DT 03-AUG-2022, entry version 134.
DE RecName: Full=Signal recognition particle 54 kDa protein {ECO:0000255|HAMAP-Rule:MF_00306};
DE Short=SRP54 {ECO:0000255|HAMAP-Rule:MF_00306};
GN Name=srp54 {ECO:0000255|HAMAP-Rule:MF_00306}; Synonyms=ffh;
GN OrderedLocusNames=Saci_1310;
OS Sulfolobus acidocaldarius (strain ATCC 33909 / DSM 639 / JCM 8929 / NBRC
OS 15157 / NCIMB 11770).
OC Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC Sulfolobus.
OX NCBI_TaxID=330779;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770;
RA Moll R., Schmidtke S., Schaefer G.;
RT "Ffh homologous components of hyperthermophilic archaebacteria.";
RL Submitted (APR-1997) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770;
RX PubMed=15995215; DOI=10.1128/jb.187.14.4992-4999.2005;
RA Chen L., Bruegger K., Skovgaard M., Redder P., She Q., Torarinsson E.,
RA Greve B., Awayez M., Zibat A., Klenk H.-P., Garrett R.A.;
RT "The genome of Sulfolobus acidocaldarius, a model organism of the
RT Crenarchaeota.";
RL J. Bacteriol. 187:4992-4999(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.
CC {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. Archaeal SRP consists of a
CC 7S RNA molecule of 300 nucleotides and two protein subunits: SRP54 and
CC SRP19. {ECO:0000255|HAMAP-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=CAA73234.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; Y12702; CAA73234.1; ALT_INIT; Genomic_DNA.
DR EMBL; CP000077; AAY80648.1; -; Genomic_DNA.
DR RefSeq; WP_011278150.1; NC_007181.1.
DR AlphaFoldDB; O07853; -.
DR SMR; O07853; -.
DR STRING; 330779.Saci_1310; -.
DR PRIDE; O07853; -.
DR EnsemblBacteria; AAY80648; AAY80648; Saci_1310.
DR GeneID; 3473387; -.
DR KEGG; sai:Saci_1310; -.
DR PATRIC; fig|330779.12.peg.1264; -.
DR eggNOG; arCOG01228; Archaea.
DR HOGENOM; CLU_009301_6_0_2; -.
DR OMA; DTAGRHK; -.
DR Proteomes; UP000001018; Chromosome.
DR GO; GO:0048500; C:signal recognition particle; IEA:UniProtKB-UniRule.
DR GO; GO:0008312; F:7S RNA binding; IEA:UniProtKB-UniRule.
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; IPR036225; SRP/SRP_N.
DR InterPro; IPR022941; SRP54.
DR InterPro; IPR000897; SRP54_GTPase_dom.
DR InterPro; IPR042101; SRP54_N_sf.
DR PANTHER; PTHR11564; PTHR11564; 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; SSF47364; SSF47364; 1.
DR SUPFAM; SSF47446; SSF47446; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
PE 3: Inferred from homology;
KW Cytoplasm; GTP-binding; Nucleotide-binding; Reference proteome;
KW Ribonucleoprotein; RNA-binding; Signal recognition particle.
FT CHAIN 1..444
FT /note="Signal recognition particle 54 kDa protein"
FT /id="PRO_0000101186"
FT BINDING 102..109
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00306"
FT BINDING 184..188
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00306"
FT BINDING 244..247
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00306"
SQ SEQUENCE 444 AA; 49659 MW; 3B9B34306DAED60A CRC64;
MLDGLRDAVR KFLGSSDYEK AVNEFIKELQ IILIKADVNV RLVKDLTDRI KKRITEEKPP
SAIEKREWFI SIVYDELSRL FGGDKEPEVM PKKLPYIIML VGVQGSGKTT TSGKLALFYK
KKGYKVGLVA ADIYRPAAYE QLIQIGQQIN IPVYGEPGNK NPIEIATNGL EKFLKEKMNI
VIIDTAGRHG YGEEASLLEE MKSMYDKIHP DEVILVIDAS IGQKAYDLAS RFHQASPIGS
LIVSKMDGTA KGGGALSAVI ATGAQIKFIG TGEKLDELEV FNPRRFVSRL LGLGDIESII
EKIKSVEDYE NLEKRMEDVI SGKTKLTLRD IYKQLIALRK MGPLGKIFQM LPGAGILSQV
PEEQLKLGEE KIRTFMAIMN SMTYKELDNP SIIDKARMRR IAKGAGVTVE EVKELLKQYQ
MTNNLLKMVK RRKGLAKLFG GSNQ
