ID   KDPA_POLAQ              Reviewed;         596 AA.
AC   A4SZG9;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 91.
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=Pnuc_1670;
OS   Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 /
OS   QLW-P1DMWA-1) (Polynucleobacter necessarius subsp. asymbioticus).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Polynucleobacter.
OX   NCBI_TaxID=312153;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 18221 / CIP 109841 / QLW-P1DMWA-1;
RX   PubMed=22675600; DOI=10.4056/sigs.2395367;
RA   Meincke L., Copeland A., Lapidus A., Lucas S., Berry K.W., Del Rio T.G.,
RA   Hammon N., Dalin E., Tice H., Pitluck S., Richardson P., Bruce D.,
RA   Goodwin L., Han C., Tapia R., Detter J.C., Schmutz J., Brettin T.,
RA   Larimer F., Land M., Hauser L., Kyrpides N.C., Ivanova N., Goker M.,
RA   Woyke T., Wu Q.L., Pockl M., Hahn M.W., Klenk H.P.;
RT   "Complete genome sequence of Polynucleobacter necessarius subsp.
RT   asymbioticus type strain (QLW-P1DMWA-1(T)).";
RL   Stand. Genomic Sci. 6:74-83(2012).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000655; ABP34883.1; -; Genomic_DNA.
DR   RefSeq; WP_011903506.1; NC_009379.1.
DR   AlphaFoldDB; A4SZG9; -.
DR   SMR; A4SZG9; -.
DR   STRING; 312153.Pnuc_1670; -.
DR   PRIDE; A4SZG9; -.
DR   EnsemblBacteria; ABP34883; ABP34883; Pnuc_1670.
DR   GeneID; 31482058; -.
DR   KEGG; pnu:Pnuc_1670; -.
DR   eggNOG; COG2060; Bacteria.
DR   HOGENOM; CLU_018614_3_0_4; -.
DR   OMA; RQGWAIL; -.
DR   Proteomes; UP000000231; Chromosome.
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..596
FT                   /note="Potassium-transporting ATPase potassium-binding
FT                   subunit"
FT                   /id="PRO_1000078786"
FT   TRANSMEM        6..26
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        67..87
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        136..156
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        177..197
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        283..303
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        314..334
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        413..433
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        450..470
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        518..538
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        560..580
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
SQ   SEQUENCE   596 AA;  63330 MW;  8D4EAF200522E398 CRC64;
     MSTHAILTIV LYVGVLLLLA YPLGGFIDAV MSGQSITSKK PFRFIENFIY KVCGIDPAIE
     MSWLSYAIGL IAFNILGVLF VFGLQLFQGI LPLNPQGLVS VSPDSSFNTA ISFATNTNWQ
     AYVGEGTMSY LTQMLGLTTQ NFLSAASGIV VVIALIRGFA RNSIKTIGNL WVDLTRITLY
     VLVPISVVYA IFLVGQGSIQ NFDAYKDVKT VEVAKFDAPK LDADGQPLKD EKGAVLTGPA
     STDQQTLPMG PVASQEAIKM LGTNGGGFFN ANSAHPYENP TPLSNFIQIL SIFLIPAALC
     FTFGRMVRDK RQGWVVLVTM ILIFLTVTFA AVHFESQANP VLTNLGVDGA MGNMEGKETR
     FGIDDSSIFA SITTLASCGA VNSMHDSFMP MGGFVPLWNM MLGEVVFGGV GTGLYGMLVF
     AILAVFIAGL MIGRTPEYLG KKIESYEMKM VAIAILVTPI LALVGTAIAV MSVDGVAGIA
     NPGAHGFSEI LYAFTSAANN NGSAFAGLSA NTPFYNSMLA IAMWFGRFGV IVPVLALAGA
     FAAKKKIAVN EGTMPTHGPL FIVLLAGTVI LVGALNYVPA LALGPIVEQL MLPVIH