ID A0A1H8BGE1_9FIRM Unreviewed; 685 AA.
AC A0A1H8BGE1;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 24.
DE RecName: Full=Potassium-transporting ATPase ATP-binding subunit {ECO:0000256|HAMAP-Rule:MF_00285};
DE EC=7.2.2.6 {ECO:0000256|HAMAP-Rule:MF_00285};
DE AltName: Full=ATP phosphohydrolase [potassium-transporting] B chain {ECO:0000256|HAMAP-Rule:MF_00285};
DE AltName: Full=Potassium-binding and translocating subunit B {ECO:0000256|HAMAP-Rule:MF_00285};
DE AltName: Full=Potassium-translocating ATPase B chain {ECO:0000256|HAMAP-Rule:MF_00285};
GN Name=kdpB {ECO:0000256|HAMAP-Rule:MF_00285};
GN ORFNames=SAMN05216180_1886 {ECO:0000313|EMBL:SEM81852.1};
OS Hydrogenoanaerobacterium saccharovorans.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Oscillospiraceae;
OC Hydrogenoanaerobacterium.
OX NCBI_TaxID=474960 {ECO:0000313|EMBL:SEM81852.1, ECO:0000313|Proteomes:UP000199158};
RN [1] {ECO:0000313|EMBL:SEM81852.1, ECO:0000313|Proteomes:UP000199158}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 1.5070 {ECO:0000313|EMBL:SEM81852.1,
RC ECO:0000313|Proteomes:UP000199158};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-
CC Rule:MF_00285};
CC -!- SUBUNIT: The system is composed of three essential subunits: KdpA, KdpB
CC and KdpC. {ECO:0000256|HAMAP-Rule:MF_00285}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_00285};
CC Multi-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_00285}.
CC -!- SIMILARITY: Belongs to the cation transport ATPase (P-type) (TC 3.A.3)
CC family. Type IA subfamily. {ECO:0000256|HAMAP-Rule:MF_00285}.
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DR EMBL; FOCG01000001; SEM81852.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1H8BGE1; -.
DR STRING; 474960.SAMN05216180_1886; -.
DR OrthoDB; 9813266at2; -.
DR Proteomes; UP000199158; Unassembled WGS sequence.
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; SFLDG00002; C1.7:_P-type_atpase_like; 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 PROSITE; PS00154; ATPASE_E1_E2; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_00285};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00285};
KW Ion transport {ECO:0000256|ARBA:ARBA00023065, ECO:0000256|HAMAP-
KW Rule:MF_00285};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_00285};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_00285};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00285};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00285};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553, ECO:0000256|HAMAP-
KW Rule:MF_00285};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_00285};
KW Potassium transport {ECO:0000256|ARBA:ARBA00022538, ECO:0000256|HAMAP-
KW Rule:MF_00285}; Reference proteome {ECO:0000313|Proteomes:UP000199158};
KW Translocase {ECO:0000256|ARBA:ARBA00022967, ECO:0000256|HAMAP-
KW Rule:MF_00285};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW Rule:MF_00285};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW Rule:MF_00285};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_00285}.
FT TRANSMEM 34..54
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 60..79
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 216..239
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 251..274
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 590..613
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 619..637
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 657..679
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT ACT_SITE 310
FT /note="4-aspartylphosphate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 347
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 351
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 380..387
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 398
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 521
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 525
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
SQ SEQUENCE 685 AA; 72511 MW; 505F55FB2BA41D9B CRC64;
MKEKSVNGGI FADAIRQSFV KLDPRIQVKN PVMLVVYIGA VFTTILYFLS FVGIKDESSG
YILTIALILW FTVLFANFAE AIAEGRGRAQ AQSLRSARKD VKAKKLKSPA NPDDYTEVLS
NTLKKGDIVI VKAGEQIPMD GEVIDGAASV DESAITGESA PVIRESGGDR SAVTGGTTLV
SDWLIIAVTA EAGESFLDKM IAMVEGASRK KTPNEVALQI LLVTLTIIFL VVTATLLPFT
SFVSKQAGSG AAISVTNVIA LLVCLAPTTI GALLSSIGIA GMSRLNQANV LAMSGRAIEA
AGDVDVLLLD KTGTITLGNR QASEFLPVNG VTEQELADAA QLSSIADETA EGRSIVILAK
EKFGIRGRDM SKLQATFVEF TAKTRMSGID FQGNEIRKGA ADTVKQYVLQ RNGDYPDECD
RIVKHVAAAG GTPLVVAKNQ QVLGVINLKD IVKNGVKERF EDLRKMGIKT IMITGDNPMT
AAAIAAEAGV DDFLAEATPE AKLALIRDYQ TKGHLVAMTG DGTNDAPALA QADVAVAMNT
GTQAAKEAGN MVDLDSSPTK LIDIVRIGKQ LLMTRGSLTT FSVANDVAKY FAIIPVLFFG
IFPQLTALNI MGLTSSKSAI LSAIIYNALI IIALIPLALK GVKYRELPAG KLLERNLLIY
GLGGLAAPFA AIKLIDMILT ACGLV
//
