ID   KDPA_CAUSK              Reviewed;         569 AA.
AC   B0SYJ7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=Potassium-transporting ATPase potassium-binding subunit {ECO:0000255|HAMAP-Rule:MF_00275};
DE   AltName: Full=ATP phosphohydrolase [potassium-transporting] A chain {ECO:0000255|HAMAP-Rule:MF_00275};
DE   AltName: Full=Potassium-binding and translocating subunit A {ECO:0000255|HAMAP-Rule:MF_00275};
DE   AltName: Full=Potassium-translocating ATPase A chain {ECO:0000255|HAMAP-Rule:MF_00275};
GN   Name=kdpA {ECO:0000255|HAMAP-Rule:MF_00275}; OrderedLocusNames=Caul_4242;
OS   Caulobacter sp. (strain K31).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Caulobacterales;
OC   Caulobacteraceae; Caulobacter; unclassified Caulobacter.
OX   NCBI_TaxID=366602;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K31;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Bruce D., Goodwin L., Thompson L.S., Brettin T.,
RA   Detter J.C., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Kim E., Stephens C., Richardson P.;
RT   "Complete sequence of chromosome of Caulobacter sp. K31.";
RL   Submitted (JAN-2008) 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
CC       binds the periplasmic potassium ions and delivers the ions to the
CC       membrane domain of KdpB through an intramembrane tunnel.
CC       {ECO:0000255|HAMAP-Rule:MF_00275}.
CC   -!- SUBUNIT: The system is composed of three essential subunits: KdpA, KdpB
CC       and KdpC. {ECO:0000255|HAMAP-Rule:MF_00275}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00275}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00275}.
CC   -!- SIMILARITY: Belongs to the KdpA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00275}.
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DR   EMBL; CP000927; ABZ73364.1; -; Genomic_DNA.
DR   RefSeq; WP_012288248.1; NC_010338.1.
DR   AlphaFoldDB; B0SYJ7; -.
DR   SMR; B0SYJ7; -.
DR   STRING; 366602.Caul_4242; -.
DR   EnsemblBacteria; ABZ73364; ABZ73364; Caul_4242.
DR   KEGG; cak:Caul_4242; -.
DR   eggNOG; COG2060; Bacteria.
DR   HOGENOM; CLU_018614_3_0_5; -.
DR   OMA; RQGWAIL; -.
DR   OrthoDB; 296671at2; -.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0008556; F:P-type potassium transmembrane transporter activity; IEA:InterPro.
DR   GO; GO:0030955; F:potassium ion binding; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00275; KdpA; 1.
DR   InterPro; IPR004623; KdpA.
DR   PANTHER; PTHR30607; PTHR30607; 1.
DR   Pfam; PF03814; KdpA; 1.
DR   PIRSF; PIRSF001294; K_ATPaseA; 1.
DR   TIGRFAMs; TIGR00680; kdpA; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Ion transport; Membrane; Potassium;
KW   Potassium transport; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..569
FT                   /note="Potassium-transporting ATPase potassium-binding
FT                   subunit"
FT                   /id="PRO_1000078779"
FT   TRANSMEM        5..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        65..85
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        135..155
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        179..199
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        254..274
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        286..306
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        383..403
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        422..442
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        489..509
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        528..548
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
SQ   SEQUENCE   569 AA;  59128 MW;  9B3203325818E246 CRC64;
     MNWQGWAEIA LTLGLAVAIG WPLGVYMSRV WNGERTWLDP VLRPVEAVFY KAGGIDAQKS
     QSWWGYAGAL LAFNFVGFLL VYAVLRLQGV LPMNPQGFSG LSGHLSFNTA ISFVTNTNWQ
     SYAGETTMST LSQMLVLTVQ NFLSAATGAT VAAALARAFV ANRGEGVGNF WADLVRTTLY
     VLLPLSFVVA IVLVALGLPQ TLAAGVTAHT LEGADQKISL YAVASQEAIK MLGINGGGVF
     NANSAHPFEN PTPLTNLITA VSINVLGWAA FFAFGRSVLA KKDIRALVIA ASILLSAGAA
     TVYWTETQVA PAQVAAQVDT SVNMEGKETR FGAPATAAWV AMTTGASNGS VNGMHSSLMP
     LGGGMAMFLM HLGEILPGGI GSGIAVMIVM AVLAVFVAGL MVGRTPEYLG KKIEAREVQL
     ALLTVLAIPV ATLGFSAIAA VLPEALKGLM HSGPHGMSEI LYAYTSATAN NGSAFAGLTA
     NAPWWDTTMG VAMAMGRFMP IVAVLAMAGS LVGKPKLAPS AGTLPTHGGL FVGLLIGVIL
     ILGGLQFFPA LALGPIVEHF QVLAAVAGH