ID   KDPA_BACC2              Reviewed;         555 AA.
AC   B7II08;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 72.
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};
GN   OrderedLocusNames=BCG9842_B4534;
OS   Bacillus cereus (strain G9842).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=405531;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=G9842;
RA   Dodson R.J., Durkin A.S., Rosovitz M.J., Rasko D.A., Hoffmaster A.,
RA   Ravel J., Sutton G.;
RT   "Genome sequence of Bacillus cereus G9842.";
RL   Submitted (OCT-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 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; CP001186; ACK96291.1; -; Genomic_DNA.
DR   RefSeq; WP_000638330.1; NC_011772.1.
DR   AlphaFoldDB; B7II08; -.
DR   SMR; B7II08; -.
DR   EnsemblBacteria; ACK96291; ACK96291; BCG9842_B4534.
DR   GeneID; 67505455; -.
DR   KEGG; bcg:BCG9842_B4534; -.
DR   HOGENOM; CLU_018614_3_0_9; -.
DR   OMA; RQGWAIL; -.
DR   Proteomes; UP000006744; 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   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..555
FT                   /note="Potassium-transporting ATPase potassium-binding
FT                   subunit"
FT                   /id="PRO_1000119331"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        60..80
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        130..150
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        173..193
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        246..266
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        278..298
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        374..394
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        412..432
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        483..503
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
FT   TRANSMEM        525..545
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00275"
SQ   SEQUENCE   555 AA;  59730 MW;  C3CF38FA593246D7 CRC64;
     MIWVAVIITM LLFILVAKPT GIYLEKAFQG SKTLDKVFGP FEKLIFKITG VKAYNQTWKQ
     YALSLVLLNG FMIVVVYFIF RLQGVLPLNP AHIEGMEPTL AFNTAISFMA DTNLQHYSGE
     NGLSYLSQLI GITFLMFAAP ATTLALVMAF IRGLAGKELG NFFVDFTRAL TRVFLPIAFI
     AALVFVALGV PQTLDGAVTA QTIEGAKQSI LRGPVASFVS IKELGNNGGG FFGANSTHPF
     ENPGQMSNIL QMMLMMLLPT ALPFTYGRMV GNKKQGRILF VSLFMVFLLG FITITTSELN
     GNPALNGMGI EHVQGSTEGK EVRFGTVFSS LYATVTTAAE TGAVNTMHDT LTPIGGLVPL
     VNMMLNTVYG GVGAGFVNII MYAIIAVFIS GLMVGRTPEF LGKKIEGKEM KLIAVTILFH
     PLLILGFSAL ALSTNLGTDA ISHSGFHGLT QVVYEYTSSA ANNGSGFEGL GDNTPFWNIT
     TGLVMFLGRY FSLITMLAVA ASLKEKTVVP ETVGTFRTDN SLFGGIFIGT IVIVGALTFF
     PMLVLGPIAE FLTLK