ID PSTB_HALWD Reviewed; 307 AA.
AC Q18K56;
DT 23-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT 25-JUL-2006, sequence version 1.
DT 27-MAR-2024, entry version 111.
DE RecName: Full=Phosphate import ATP-binding protein PstB {ECO:0000255|HAMAP-Rule:MF_01702};
DE EC=7.3.2.1 {ECO:0000255|HAMAP-Rule:MF_01702};
DE AltName: Full=ABC phosphate transporter {ECO:0000255|HAMAP-Rule:MF_01702};
DE AltName: Full=Phosphate-transporting ATPase {ECO:0000255|HAMAP-Rule:MF_01702};
GN Name=pstB {ECO:0000255|HAMAP-Rule:MF_01702}; OrderedLocusNames=HQ_1468A;
OS Haloquadratum walsbyi (strain DSM 16790 / HBSQ001).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Haloferacaceae; Haloquadratum.
OX NCBI_TaxID=362976;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16790 / HBSQ001;
RX PubMed=16820047; DOI=10.1186/1471-2164-7-169;
RA Bolhuis H., Palm P., Wende A., Falb M., Rampp M., Rodriguez-Valera F.,
RA Pfeiffer F., Oesterhelt D.;
RT "The genome of the square archaeon Haloquadratum walsbyi: life at the
RT limits of water activity.";
RL BMC Genomics 7:169-169(2006).
CC -!- FUNCTION: Part of the ABC transporter complex PstSACB involved in
CC phosphate import. Responsible for energy coupling to the transport
CC system. {ECO:0000255|HAMAP-Rule:MF_01702}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + phosphate(out) = ADP + H(+) + 2 phosphate(in);
CC Xref=Rhea:RHEA:24440, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=7.3.2.1;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01702};
CC -!- SUBUNIT: The complex is composed of two ATP-binding proteins (PstB),
CC two transmembrane proteins (PstC and PstA) and a solute-binding protein
CC (PstS). {ECO:0000255|HAMAP-Rule:MF_01702}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01702};
CC Peripheral membrane protein {ECO:0000255|HAMAP-Rule:MF_01702}.
CC -!- SIMILARITY: Belongs to the ABC transporter superfamily. Phosphate
CC importer (TC 3.A.1.7) family. {ECO:0000255|HAMAP-Rule:MF_01702}.
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DR EMBL; AM180088; CAJ51596.1; -; Genomic_DNA.
DR AlphaFoldDB; Q18K56; -.
DR SMR; Q18K56; -.
DR STRING; 362976.HQ_1468A; -.
DR KEGG; hwa:HQ_1468A; -.
DR eggNOG; arCOG00231; Archaea.
DR HOGENOM; CLU_000604_1_22_2; -.
DR Proteomes; UP000001975; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR GO; GO:0015415; F:ATPase-coupled phosphate ion transmembrane transporter activity; IEA:UniProtKB-EC.
DR GO; GO:0005315; F:inorganic phosphate transmembrane transporter activity; IEA:InterPro.
DR CDD; cd03260; ABC_PstB_phosphate_transporter; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR003439; ABC_transporter-like_ATP-bd.
DR InterPro; IPR017871; ABC_transporter-like_CS.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR005670; PstB-like.
DR NCBIfam; TIGR00972; 3a0107s01c2; 1.
DR PANTHER; PTHR43423; ABC TRANSPORTER I FAMILY MEMBER 17; 1.
DR PANTHER; PTHR43423:SF1; ABC TRANSPORTER I FAMILY MEMBER 17; 1.
DR Pfam; PF00005; ABC_tran; 1.
DR SMART; SM00382; AAA; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS00211; ABC_TRANSPORTER_1; 1.
DR PROSITE; PS50893; ABC_TRANSPORTER_2; 1.
DR PROSITE; PS51238; PSTB; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cell membrane; Membrane; Nucleotide-binding;
KW Phosphate transport; Reference proteome; Translocase; Transport.
FT CHAIN 1..307
FT /note="Phosphate import ATP-binding protein PstB"
FT /id="PRO_0000272585"
FT DOMAIN 48..302
FT /note="ABC transporter"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01702"
FT REGION 1..30
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1..27
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 80..87
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01702"
SQ SEQUENCE 307 AA; 34129 MW; DBBADF45BBF206A6 CRC64;
MSETTYTTTE DTDDTNSTDS MVGTTTGETD EYVREEWREY SFDVPTKLGV DDLDVYYGDD
QALEGVSMEI PEKSVTALIG PSGCGKSTFL RCLNRMNDRV SSARIDGSVT LDSQEIYQDG
VNLVELRKRV GMVFQSPNPF PKSIRENIAY GPEKHGDIDT GVLARLLGRS DEEQREELVE
RCLRDAALWD EVHDRLDDNA LGLSGGQQQR LCIARCLSVD PEVILMDEPA SALDPIATAK
IEDLIAELSK EYTVVIVTHN MQQAARISEQ TAVFLTGGEL VEYGDTDQVF ENPQSERVED
YITGKFG
//
