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Database: UniProt
Entry: A7FFQ9
LinkDB: A7FFQ9
Original site: A7FFQ9 
ID   KDPB_YERP3              Reviewed;         688 AA.
AC   A7FFQ9;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   27-MAR-2024, entry version 103.
DE   RecName: Full=Potassium-transporting ATPase ATP-binding subunit {ECO:0000255|HAMAP-Rule:MF_00285};
DE            EC=7.2.2.6 {ECO:0000255|HAMAP-Rule:MF_00285};
DE   AltName: Full=ATP phosphohydrolase [potassium-transporting] B chain {ECO:0000255|HAMAP-Rule:MF_00285};
DE   AltName: Full=Potassium-binding and translocating subunit B {ECO:0000255|HAMAP-Rule:MF_00285};
DE   AltName: Full=Potassium-translocating ATPase B chain {ECO:0000255|HAMAP-Rule:MF_00285};
GN   Name=kdpB {ECO:0000255|HAMAP-Rule:MF_00285};
GN   OrderedLocusNames=YpsIP31758_1106;
OS   Yersinia pseudotuberculosis serotype O:1b (strain IP 31758).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Yersiniaceae; Yersinia.
OX   NCBI_TaxID=349747;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IP 31758;
RX   PubMed=17784789; DOI=10.1371/journal.pgen.0030142;
RA   Eppinger M., Rosovitz M.J., Fricke W.F., Rasko D.A., Kokorina G.,
RA   Fayolle C., Lindler L.E., Carniel E., Ravel J.;
RT   "The complete genome sequence of Yersinia pseudotuberculosis IP31758, the
RT   causative agent of Far East scarlet-like fever.";
RL   PLoS Genet. 3:1508-1523(2007).
CC   -!- FUNCTION: Part of the high-affinity ATP-driven potassium transport (or
CC       Kdp) system, which catalyzes the hydrolysis of ATP coupled with the
CC       electrogenic transport of potassium into the cytoplasm. This subunit is
CC       responsible for energy coupling to the transport system and for the
CC       release of the potassium ions to the cytoplasm. {ECO:0000255|HAMAP-
CC       Rule:MF_00285}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + K(+)(out) = ADP + H(+) + K(+)(in) + phosphate;
CC         Xref=Rhea:RHEA:16777, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29103, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:456216; EC=7.2.2.6; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00285};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:16778;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00285};
CC   -!- SUBUNIT: The system is composed of three essential subunits: KdpA, KdpB
CC       and KdpC. {ECO:0000255|HAMAP-Rule:MF_00285}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00285}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00285}.
CC   -!- SIMILARITY: Belongs to the cation transport ATPase (P-type) (TC 3.A.3)
CC       family. Type IA subfamily. {ECO:0000255|HAMAP-Rule:MF_00285}.
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DR   EMBL; CP000720; ABS46846.1; -; Genomic_DNA.
DR   RefSeq; WP_012104771.1; NC_009708.1.
DR   AlphaFoldDB; A7FFQ9; -.
DR   SMR; A7FFQ9; -.
DR   KEGG; ypi:YpsIP31758_1106; -.
DR   HOGENOM; CLU_025728_2_0_6; -.
DR   Proteomes; UP000002412; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0008556; F:P-type potassium transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   CDD; cd02078; P-type_ATPase_K; 1.
DR   Gene3D; 3.40.1110.10; Calcium-transporting ATPase, cytoplasmic domain N; 1.
DR   Gene3D; 2.70.150.10; Calcium-transporting ATPase, cytoplasmic transduction domain A; 1.
DR   Gene3D; 3.40.50.1000; HAD superfamily/HAD-like; 1.
DR   HAMAP; MF_00285; KdpB; 1.
DR   InterPro; IPR023299; ATPase_P-typ_cyto_dom_N.
DR   InterPro; IPR018303; ATPase_P-typ_P_site.
DR   InterPro; IPR023298; ATPase_P-typ_TM_dom_sf.
DR   InterPro; IPR008250; ATPase_P-typ_transduc_dom_A_sf.
DR   InterPro; IPR036412; HAD-like_sf.
DR   InterPro; IPR023214; HAD_sf.
DR   InterPro; IPR006391; P-type_ATPase_bsu_IA.
DR   InterPro; IPR001757; P_typ_ATPase.
DR   InterPro; IPR044492; P_typ_ATPase_HD_dom.
DR   NCBIfam; TIGR01494; ATPase_P-type; 2.
DR   NCBIfam; TIGR01497; kdpB; 1.
DR   PANTHER; PTHR43743; POTASSIUM-TRANSPORTING ATPASE ATP-BINDING SUBUNIT; 1.
DR   PANTHER; PTHR43743:SF1; POTASSIUM-TRANSPORTING ATPASE ATP-BINDING SUBUNIT; 1.
DR   Pfam; PF00122; E1-E2_ATPase; 1.
DR   Pfam; PF00702; Hydrolase; 1.
DR   PRINTS; PR00119; CATATPASE.
DR   SFLD; SFLDS00003; Haloacid_Dehalogenase; 1.
DR   SFLD; SFLDF00027; p-type_atpase; 1.
DR   SUPFAM; SSF81653; Calcium ATPase, transduction domain A; 1.
DR   SUPFAM; SSF81665; Calcium ATPase, transmembrane domain M; 1.
DR   SUPFAM; SSF56784; HAD-like; 1.
DR   SUPFAM; SSF81660; Metal cation-transporting ATPase, ATP-binding domain N; 1.
DR   PROSITE; PS00154; ATPASE_E1_E2; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cell inner membrane; Cell membrane; Ion transport; Magnesium;
KW   Membrane; Metal-binding; Nucleotide-binding; Phosphoprotein; Potassium;
KW   Potassium transport; Translocase; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..688
FT                   /note="Potassium-transporting ATPase ATP-binding subunit"
FT                   /id="PRO_1000059254"
FT   TRANSMEM        34..54
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   TRANSMEM        62..82
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   TRANSMEM        219..239
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   TRANSMEM        260..280
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   TRANSMEM        594..614
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   TRANSMEM        622..642
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   TRANSMEM        662..682
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   ACT_SITE        313
FT                   /note="4-aspartylphosphate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   BINDING         350
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   BINDING         354
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   BINDING         383..390
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   BINDING         401
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   BINDING         524
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT   BINDING         528
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
SQ   SEQUENCE   688 AA;  72948 MW;  5215B70A3C5D4F44 CRC64;
     MTHKQRAIFE PTLVRTALLD AVKKLDPRVQ WRNPVMFVVY LGSWLTTLIW LAILSGHTTG
     SAMFTGSIAL WLWFTVLFAN MAEALAEGRS KAQAASLRGV KKTSWAKKLS EARVDAPQEK
     VSADSLRKGD LVLIEAGDTV PCDGEVLEGG ASVDESAITG ESAPVIRESG GDFSSVTGGT
     RVLSDWLVVE CRVNPGETFL DRMIAMVEGA KRRKTPNEVA LTILLVALTI VFLLATATLY
     PFSVFSVEAS QAGSPVTITV LVALLVCLIP TTIGGLLSAI GVAGMSRMLG ANVIATSGRA
     VEAAGDVDVL LLDKTGTITL GNRQASEFLP APGVTEQQLA DAAQLSSLAD ETPEGRSIVV
     LAKQRFNLRE RDLHSLNATF IPFSAQTRMS GVNVQERMIR KGAVDAIRRH VESNQGHFPP
     AVDDLVASVA RTGGTPLVVA EGSRVLGVVA LKDIVKGGIK ERFAELRKMG IKTVMITGDN
     RLTAAAIAAE AGVDDFLAEA TPEAKLALIR QYQAEGRLVA MTGDGTNDAP ALAQADVAVA
     MNSGTQAAKE AGNMVDLDSN PTKLIEVVHI GKQMLMTRGS LTTFSIANDV AKYFAIIPAA
     FAATYPQLNA LNIMQLHSPS SAILSAVIFN ALVIVFLIPL ALKGVSYKAM SAAALLRRNL
     WIYGLGGLLV PFVGIKLIDL LLTALNMG
//
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