ID D5AM65_RHOCB Unreviewed; 502 AA.
AC D5AM65;
DT 15-JUN-2010, integrated into UniProtKB/TrEMBL.
DT 15-JUN-2010, sequence version 1.
DT 27-MAR-2024, entry version 76.
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 ECO:0000313|EMBL:ADE84135.1};
GN OrderedLocusNames=RCAP_rcc00370 {ECO:0000313|EMBL:ADE84135.1};
OS Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Rhodobacter.
OX NCBI_TaxID=272942 {ECO:0000313|EMBL:ADE84135.1, ECO:0000313|Proteomes:UP000002361};
RN [1]
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=SB1003;
RA Strnad H., Lapidus A., Vlcek C., Ulbrich P., Paces J., Maltsev N.,
RA Kumar V., Kogan Y., Milgram A., Rebrekov D., Mazur M., Cox R., Kyrpides N.,
RA Kolar M., Sachova J., Ridl J., Ivanova N., Kapatral V., Los T., Lykidis A.,
RA Mikhailova N., Reznik G., Vasieva O., Fonstein M., Paces V., Haselkorn R.;
RT "Complete genome sequence of Rhodobacter capsulatus SB1003.";
RL Submitted (DEC-2008) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ADE84135.1, ECO:0000313|Proteomes:UP000002361}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-309 / NBRC 16581 / SB1003
RC {ECO:0000313|Proteomes:UP000002361};
RX PubMed=20418398; DOI=10.1128/JB.00366-10;
RA Strnad H., Lapidus A., Paces J., Ulbrich P., Vlcek C., Paces V.,
RA Haselkorn R.;
RT "Complete genome sequence of the photosynthetic purple nonsulfur bacterium
RT Rhodobacter capsulatus SB 1003.";
RL J. Bacteriol. 192:3545-3546(2010).
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: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. SRP is a ribonucleoprotein
CC composed of Ffh and a 4.5S RNA molecule. {ECO:0000256|HAMAP-
CC Rule:MF_00306}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane
CC {ECO:0000256|ARBA:ARBA00004515}; Peripheral membrane protein
CC {ECO:0000256|ARBA:ARBA00004515}; Cytoplasmic side
CC {ECO:0000256|ARBA:ARBA00004515}. Cytoplasm {ECO:0000256|HAMAP-
CC Rule:MF_00306}. Note=The SRP-RNC complex is targeted to the cytoplasmic
CC membrane. {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}.
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DR EMBL; CP001312; ADE84135.1; -; Genomic_DNA.
DR RefSeq; WP_013066115.1; NC_014034.1.
DR AlphaFoldDB; D5AM65; -.
DR STRING; 272942.RCAP_rcc00370; -.
DR GeneID; 31489327; -.
DR KEGG; rcp:RCAP_rcc00370; -.
DR eggNOG; COG0541; Bacteria.
DR HOGENOM; CLU_009301_6_0_5; -.
DR OrthoDB; 9804720at2; -.
DR Proteomes; UP000002361; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
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 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:UP000002361};
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 270..283
FT /note="SRP54-type proteins GTP-binding"
FT /evidence="ECO:0000259|PROSITE:PS00300"
FT BINDING 108..115
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 191..195
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 249..252
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
SQ SEQUENCE 502 AA; 54130 MW; 27C29F6156123A95 CRC64;
MFESLSERLG GVFERLTKQG ALTAEDVKVA MREVRTALLE ADVSLPVVRD FVKKVETKAT
GAQVTKSITP GQQVVKIVHD EIVAMLSGED AADALKIDNP PAPILMVGLQ GGGKTTTTAK
LARRLKEREK KRVLMASLDI YRPAAMEQLA ILGTQIGVDT LPIVPGETAV QIAKRAKTQA
AMGGYDVYLL DTAGRLHIDE VLMGEVQQVR DAVSPRETLL VVDGLTGQVA VEVAQEFDDK
IGITGVVLTR MDGDGRGGAA LSMRATTGKP IRFVGLGEKM DALETFEASR IAGRILGMGD
IVALVERAQE VFEKEQAERM MRRFQKGLFN LNDMKSQLEQ MQKMGGMQGV MSMMPGMGKM
AKQAEEAGFD DRTIRRQIAM INSMTKKERA HPELLQASRK RRVAAGAGVD VADLNKLLKM
HRQMADTMKK LGNMKGGMLK QAMAAMQGKF GGLPGKDEMD PAKMEEAAKA MASMKGLPGA
MPGLGGLKLP PGLAGLNMGK KK
//
