KDPB_BACCN
ID KDPB_BACCN Reviewed; 698 AA.
AC A7GLG4;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-SEP-2007, sequence version 1.
DT 03-AUG-2022, entry version 104.
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}; OrderedLocusNames=Bcer98_0625;
OS Bacillus cytotoxicus (strain DSM 22905 / CIP 110041 / 391-98 / NVH 391-98).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=315749;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 22905 / CIP 110041 / 391-98 / NVH 391-98;
RX PubMed=17434157; DOI=10.1016/j.cbi.2007.03.003;
RA Lapidus A., Goltsman E., Auger S., Galleron N., Segurens B., Dossat C.,
RA Land M.L., Broussolle V., Brillard J., Guinebretiere M.-H., Sanchis V.,
RA Nguen-the C., Lereclus D., Richardson P., Wincker P., Weissenbach J.,
RA Ehrlich S.D., Sorokin A.;
RT "Extending the Bacillus cereus group genomics to putative food-borne
RT pathogens of different toxicity.";
RL Chem. Biol. Interact. 171:236-249(2008).
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 membrane {ECO:0000255|HAMAP-Rule:MF_00285};
CC Multi-pass membrane protein {ECO:0000255|HAMAP-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; CP000764; ABS20972.1; -; Genomic_DNA.
DR RefSeq; WP_011983728.1; NC_009674.1.
DR AlphaFoldDB; A7GLG4; -.
DR SMR; A7GLG4; -.
DR STRING; 315749.Bcer98_0625; -.
DR PRIDE; A7GLG4; -.
DR EnsemblBacteria; ABS20972; ABS20972; Bcer98_0625.
DR KEGG; bcy:Bcer98_0625; -.
DR eggNOG; COG2216; Bacteria.
DR HOGENOM; CLU_025728_2_0_9; -.
DR OMA; ILWLWFT; -.
DR OrthoDB; 237367at2; -.
DR Proteomes; UP000002300; Chromosome.
DR GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
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; -; 1.
DR Gene3D; 3.40.50.1000; -; 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 PANTHER; PTHR43743; PTHR43743; 1.
DR SFLD; SFLDF00027; p-type_atpase; 1.
DR SUPFAM; SSF56784; SSF56784; 1.
DR SUPFAM; SSF81653; SSF81653; 1.
DR SUPFAM; SSF81665; SSF81665; 1.
DR TIGRFAMs; TIGR01494; ATPase_P-type; 2.
DR TIGRFAMs; TIGR01497; kdpB; 1.
DR PROSITE; PS00154; ATPASE_E1_E2; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cell membrane; Ion transport; Magnesium; Membrane;
KW Metal-binding; Nucleotide-binding; Phosphoprotein; Potassium;
KW Potassium transport; Translocase; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..698
FT /note="Potassium-transporting ATPase ATP-binding subunit"
FT /id="PRO_1000078861"
FT TRANSMEM 56..76
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT TRANSMEM 82..102
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT TRANSMEM 240..260
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT TRANSMEM 271..291
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT TRANSMEM 605..625
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT TRANSMEM 633..653
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT TRANSMEM 677..697
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT ACT_SITE 324
FT /note="4-aspartylphosphate intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT BINDING 361
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT BINDING 365
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT BINDING 393..400
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT BINDING 412
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT BINDING 535
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
FT BINDING 539
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00285"
SQ SEQUENCE 698 AA; 74781 MW; CEA918CE2F65016C CRC64;
MRPVIVKGKH VQVMSSSKRE DGEVRSAKTM DRDIVSNAFK QAVLKLNPKQ MIKNPIMFVV
EIGFFITLLL SVVPSLSTNV PLWFNITVTL VLLFTVFFAN FAEALAEGRG KAQADSLKQS
KKDVYANIVK ENGEITRVLA SNLKKGDMVL VKQGEMIPGD GEVIRGLASV DESAITGESA
PVMKEAGGDF CSVTGGTMVV SDEITIRITS NPGESFLDKM ILLVEGATRQ KTPNEIALNT
VLISLTLIFL IAVVTLPLFT NYLGFQIDTS ILVALLVCLI PTTIGGLLSA IGIAGMDRVT
KFNVLAMSGK AVEAAGDINT IILDKTGTIT FGNRMAHALL PVGNETIEQL AKWAALSSVL
DETPEGRSVM DYVQSKGFSY NVSKEEIGEF VPFKAETRMS GMDLKSGEKV RKGAVGAVID
WVQSQRGKIP TDLHQKADLI AKEGGTPLAV AAGNRIFGLI YLKDTVKPGM RERFEQLRQM
GIKTMMCTGD NPLTAATIAK EAGVDEFVAE CKPEDKIAVI KAEQELGKLV AMTGDGTNDA
PALAQADVGL AMNSGTAAAK EAANMIDLDS NPTKIIEVVA IGKQLLMTRG ALTTFSIAND
VAKYFAIIPA MFTVAIPQME ALNIMGLHSP LSAILSALIF NALIIPMLIP LAMKGIAYKP
MSSNTLLFRN LLIYGFGGVL VPFIGIKLVD LVVGLFIS
