ID A0A3G8JS98_9ACTN Unreviewed; 733 AA.
AC A0A3G8JS98;
DT 13-FEB-2019, integrated into UniProtKB/TrEMBL.
DT 13-FEB-2019, sequence version 1.
DT 24-JAN-2024, entry version 21.
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:AZG47786.1};
GN ORFNames=D7316_04398 {ECO:0000313|EMBL:AZG47786.1};
OS Gordonia insulae.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Gordoniaceae;
OC Gordonia.
OX NCBI_TaxID=2420509 {ECO:0000313|EMBL:AZG47786.1, ECO:0000313|Proteomes:UP000271469};
RN [1] {ECO:0000313|EMBL:AZG47786.1, ECO:0000313|Proteomes:UP000271469}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MMS17-SY073 {ECO:0000313|EMBL:AZG47786.1,
RC ECO:0000313|Proteomes:UP000271469};
RA Kim Y.S., Kim S.B.;
RT "Gordonia insulae sp. nov., isolated from an island soil.";
RL Submitted (NOV-2018) 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|ARBA:ARBA00004651,
CC ECO:0000256|HAMAP-Rule:MF_00285}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004651, 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; CP033972; AZG47786.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A3G8JS98; -.
DR KEGG; gom:D7316_04398; -.
DR OrthoDB; 9814270at2; -.
DR Proteomes; UP000271469; 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 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 {ECO:0000256|HAMAP-Rule:MF_00285, ECO:0000313|EMBL:AZG47786.1};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00285}; Hydrolase {ECO:0000313|EMBL:AZG47786.1};
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:UP000271469};
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 66..83
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 89..108
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 241..265
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 277..299
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 634..652
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 664..684
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT TRANSMEM 704..726
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT REGION 1..27
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 329
FT /note="4-aspartylphosphate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 366
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 370
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 408..415
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 431
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 568
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
FT BINDING 572
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00285"
SQ SEQUENCE 733 AA; 76893 MW; 308019D801BA985C CRC64;
MTVDTDRSPT SGAPAEGRQG ADDPDRVAQT ERRDGLVTTG AFDVRALITS LPQAIRKLTP
RAQARNPVMF VVYLGAVVTT VLATWQPSWF AWAVAAWLWF TVVFANLAEA VAEGRGRAQA
DSLRKVKRDS VARRIDDGTI TEIAGSDLRI GDLIAVEAGE VIAGDGDVVE GIATVDESAI
TGESAPVVRE SGGDRSAVTG GTVVLSDRII VKITTAPGET FVDRMIALVE GASRKKTPNE
IALDILLTTL TIIFLLAVVA VGPMQQYAGQ SPDPIKLIAL LVCLIPTTIG ALLSSIGIAG
MDRLVQRNVL AMSGRAVEAA GDIDTLLMDK TGTITFGNRR ATDLLGAPGV TTDELAGVAY
RCSLADDTPE GRSIVDLCLD SYGVEPLDAT LRDATRSNVH PEFTTVPFTA ETRMSGVDRT
GSDGRVVEYR KGAADAVARW VTAHGGTVPE SVLDEVERVS SGGATPLVVA VRGAVVGDEA
AVGDDGVRVL GVIQLSDVVK PGMAERFAQM RAMGIRTVMV TGDNPLTAQA IAAEAGVDDF
VAEATPEDKL ALIRKEQSGG RLVAMTGDGT NDAPALAQAD VGLAMNTGTS AAKEAGNMVD
LDSDPTKLID VVAIGKQLLI TRGALTTFSL ANDLAKYFAI LPALFSVIYP QLDALNIMRL
HSAQSAIVSA VVFNALIIVA LIPLSLRGVR YRPSSASRLL GRNLLIYGIG GVITPFLGIW
VIDLIVRLLP GMG
//
