ID   KDPA_HERA2              Reviewed;         579 AA.
AC   A9AXU9;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   15-JAN-2008, sequence version 1.
DT   25-MAY-2022, entry version 78.
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=Haur_2275;
OS   Herpetosiphon aurantiacus (strain ATCC 23779 / DSM 785 / 114-95).
OC   Bacteria; Chloroflexi; Chloroflexia; Herpetosiphonales; Herpetosiphonaceae;
OC   Herpetosiphon.
OX   NCBI_TaxID=316274;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 23779 / DSM 785 / 114-95;
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., Kiss H., Brettin T., Bruce D., Detter J.C., Han C.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Bryant D.A., Richardson P.;
RT   "Complete sequence of chromosome of Herpetosiphon aurantiacus ATCC 23779.";
RL   Submitted (OCT-2007) 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 extracellular 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 membrane {ECO:0000255|HAMAP-Rule:MF_00275};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00275}.
CC   -!- SIMILARITY: Belongs to the KdpA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00275}.
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DR   EMBL; CP000875; ABX04915.1; -; Genomic_DNA.
DR   AlphaFoldDB; A9AXU9; -.
DR   SMR; A9AXU9; -.
DR   STRING; 316274.Haur_2275; -.
DR   EnsemblBacteria; ABX04915; ABX04915; Haur_2275.
DR   KEGG; hau:Haur_2275; -.
DR   eggNOG; COG2060; Bacteria.
DR   HOGENOM; CLU_018614_3_0_0; -.
DR   OMA; RQGWAIL; -.
DR   Proteomes; UP000000787; 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 membrane; Ion transport; Membrane; Potassium; Potassium transport;
KW   Reference proteome; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..579
FT                   /note="Potassium-transporting ATPase potassium-binding
FT                   subunit"
FT                   /id="PRO_1000114686"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        64..84
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        178..198
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        265..285
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        293..313
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        398..418
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        435..455
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        503..523
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        549..569
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
SQ   SEQUENCE   579 AA;  61120 MW;  BA664BA011494719 CRC64;
     MISNSVIQIG IFLVVLMACV VPLGRYMAKV YGENPPLQGF FGPIERLIYR LLGIDAKSEM
     HWKHYALALL GFNAMGMLLL YGLQRMQAWL PLNPQQLPAV SADSAFNTAA SFVSNTNWQG
     YAGETTMSYL TQMLGLTVQN FVSAATGMAV LIGLIRGIAR RSTSTIGNFW VDLTRSTIYI
     LLPLALVLSV TLVSQGVVQT FSPSQTVELI QPIVNADGTT ISQQTIALGP AASQIAIKQL
     GTNGGGFFNV NSAHPLENPT PLSNFLELLS ILLIPAALCY TFGLMVGDKR QGWAILATMT
     IILLGFTVLA VSAEQAGNPL YQKLGVDDQA SALQAGGNLE GKETRFGIVN SALWATVTTA
     ASNGSVNSMH DSYTPLGGLA PMVLMQLGEV VFGGVGSGLY GMLIFAIIAV FVAGLMVGRT
     PEYLGKKIEA FEMKMAALII LIPCVMTLLI TAIAVSSESG RATVFNSGAH GFSEVLYAAT
     SAANNNGSAF AGLGANTPFY NTWLGIAMLV SRFWLIVPTL AIAGSLAGKK LIPQSAGTLP
     THTPLFVSLL IGVVLIVGAL TFIPALALGP IVEHLLLSL