ID A0A0P4UXA9_9CYAN Unreviewed; 498 AA.
AC A0A0P4UXA9;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 27-MAR-2024, entry version 30.
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 ORFNames=NIES2104_38910 {ECO:0000313|EMBL:GAP97344.1};
OS Leptolyngbya sp. NIES-2104.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Leptolyngbyales; Leptolyngbyaceae;
OC Leptolyngbya group; Leptolyngbya.
OX NCBI_TaxID=1552121 {ECO:0000313|EMBL:GAP97344.1, ECO:0000313|Proteomes:UP000052243};
RN [1] {ECO:0000313|EMBL:GAP97344.1, ECO:0000313|Proteomes:UP000052243}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NIES-2104 {ECO:0000313|EMBL:GAP97344.1,
RC ECO:0000313|Proteomes:UP000052243};
RX PubMed=26494835; DOI=10.1093/dnares/dsv022;
RA Shimura Y., Hirose Y., Misawa N., Osana Y., Katoh H., Yamaguchi H.,
RA Kawachi M.;
RT "Comparison of the terrestrial cyanobacterium Leptolyngbya sp. NIES-2104
RT and the freshwater Leptolyngbya boryana PCC 6306 genomes.";
RL DNA Res. 22:403-412(2015).
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 -!- 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:GAP97344.1}.
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DR EMBL; BBWW01000001; GAP97344.1; -; Genomic_DNA.
DR RefSeq; WP_058999593.1; NZ_BBWW01000001.1.
DR AlphaFoldDB; A0A0P4UXA9; -.
DR STRING; 1552121.NIES2104_38910; -.
DR InParanoid; A0A0P4UXA9; -.
DR OrthoDB; 9804720at2; -.
DR Proteomes; UP000052243; Unassembled WGS sequence.
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 Coiled coil {ECO:0000256|SAM:Coils};
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};
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 268..281
FT /note="SRP54-type proteins GTP-binding"
FT /evidence="ECO:0000259|PROSITE:PS00300"
FT REGION 391..410
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 457..498
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COILED 296..323
FT /evidence="ECO:0000256|SAM:Coils"
FT COILED 357..384
FT /evidence="ECO:0000256|SAM:Coils"
FT BINDING 107..114
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 189..193
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
FT BINDING 247..250
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00306"
SQ SEQUENCE 498 AA; 53890 MW; 2103E3506C666723 CRC64;
MFDALADRLE QAWKKVRGQD KISESNVKDA LREVRRALLE ADVNLQVVKD FVAEVEQNAL
GAEVIAGVRP DQQFIEVVYN ELVKVMGEAN VPLAEAETAP TIVLMAGLQG TGKTTATAKL
ALHLRKENKK ALLVATDVYR PAAIDQLIAL GKQINIPVFD MGKDADPVEI ARQGVERARA
EGVDVVIVDT AGRLQIDESM MGELKRIKDT IQPHETLLVV DAMTGQEAAN LTRTFHEQIG
VTGAILTKMD GDTRGGAALS VRRISGQPIK FIGIGEKVDA LQPFYPERMA SRILGMGDVL
TLVEKAREEV DMAEAEKMQE KILTAQFDFT DFLKQTRLLK NMGSLGGVMK LIPGMGKMVN
EEQLAKGEEQ LKKAEAMIGS MTIEERKNPD LLANSPSRRK RIARGSGHSD KEVGELVSNF
QRMRSLMQQM GSGQMGLPGM GGGMPMGGLP NPFGGGNPFG GMGGGMRPPQ PGFRGYQGGG
GKKKKGGKDK KKKGFGNL
//