ID A0A246FVD6_9PSED Unreviewed; 687 AA.
AC A0A246FVD6;
DT 25-OCT-2017, integrated into UniProtKB/TrEMBL.
DT 25-OCT-2017, sequence version 1.
DT 24-JAN-2024, entry version 28.
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 ECO:0000313|EMBL:OWP69566.1};
GN ORFNames=CEC48_22235 {ECO:0000313|EMBL:OWP69566.1};
OS Pseudomonas sp. K2I15.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Pseudomonas.
OX NCBI_TaxID=2013577 {ECO:0000313|EMBL:OWP69566.1, ECO:0000313|Proteomes:UP000197956};
RN [1] {ECO:0000313|EMBL:OWP69566.1, ECO:0000313|Proteomes:UP000197956}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K2I15 {ECO:0000313|EMBL:OWP69566.1,
RC ECO:0000313|Proteomes:UP000197956};
RA Orellana P., Castillo D., Corsini G.;
RT "Draft genome sequence of the Chilean Antartic Pseudomonas sp. strain
RT K2I15.";
RL Submitted (JUN-2017) 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}.
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:OWP69566.1}.
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DR EMBL; NIXO01000043; OWP69566.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A246FVD6; -.
DR OrthoDB; 9814270at2; -.
DR Proteomes; UP000197956; 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 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 SUPFAM; SSF81660; Metal cation-transporting ATPase, ATP-binding domain N; 1.
DR PROSITE; PS00154; ATPASE_E1_E2; 1.
DR PROSITE; PS01229; COF_2; 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};
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 48..70
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 76..96
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 226..247
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 259..283
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 592..615
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 621..641
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 661..684
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT ACT_SITE 314
FT /note="4-aspartylphosphate intermediate"
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 355
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 382..389
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 400
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 523
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 527
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
SQ SEQUENCE 687 AA; 72551 MW; EC5E4EF2471662D2 CRC64;
MKMNMPAKNA APVKTQEPAK TAMSALWRPA LVQAFVKLDP RQLQRSPVML VVELTAILTT
ILCLVPDVAV PTYVSVQIAV WLWFTVLFAN FAEALAEGRG KARADSLKAG SEGLSARRKE
ADGTFKVVPA TSLRKGDVVR VVAGEMIPGD GEVIEGIAAV NEAAITGESA PVIRESGGDR
SAVTGNTRLV SDWLMIRITA NPGESTLDRM IALVEGAKRQ KTPNEVALDI LLIGLTLIFL
LVVVTLQPFA HFANGNLPLV FLVALLVTLI PTTIGGLLSA IGIAGMDRLV RLNVIAKSGR
AVEAAGDVHV LLLDKTGTIT FGNRRCTNVI AAPGVSGKEL AEGALLASLA DDTAEGKSIV
EYLRGLHPQA EPSTDELTAV PFSAETRLSG VDYQGRVFRK GAVDSLLAFV GLQRRDLQPA
LAREIDKIAQ SGGTPLLVCA DGKLLGAIHL KDVVKPGIRE RFAELRKLGI RTVMVTGDNP
LTAAAIAAEA GVDDVLAEAT PEKKLARIRH EQNDGRLVAM CGDGANDAPA LAQADVGMAM
NDGTQAAREA ANMVDLDSDP TKLLDVVQIG KELLVTRGAL TTFSIANDVA KYFAILPALF
ASIYPQLGVL NVMHLQSPQS AILSAIVFNA LIIVVLIPLA LRGVRVQAAS AAALLRRNLL
IYGLGGIVVP FVGIKAIDML LTALHLV
//
