ID   KDPC2_NOSS1             Reviewed;         199 AA.
AC   Q8YPF1;
DT   06-JUN-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   25-MAY-2022, entry version 97.
DE   RecName: Full=Potassium-transporting ATPase KdpC subunit 2 {ECO:0000255|HAMAP-Rule:MF_00276};
DE   AltName: Full=ATP phosphohydrolase [potassium-transporting] C chain 2 {ECO:0000255|HAMAP-Rule:MF_00276};
DE   AltName: Full=Potassium-binding and translocating subunit C 2 {ECO:0000255|HAMAP-Rule:MF_00276};
DE   AltName: Full=Potassium-translocating ATPase C chain 2 {ECO:0000255|HAMAP-Rule:MF_00276};
GN   Name=kdpC2 {ECO:0000255|HAMAP-Rule:MF_00276}; OrderedLocusNames=all4243;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
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       acts as a catalytic chaperone that increases the ATP-binding affinity
CC       of the ATP-hydrolyzing subunit KdpB by the formation of a transient
CC       KdpB/KdpC/ATP ternary complex. {ECO:0000255|HAMAP-Rule:MF_00276}.
CC   -!- SUBUNIT: The system is composed of three essential subunits: KdpA, KdpB
CC       and KdpC. {ECO:0000255|HAMAP-Rule:MF_00276}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00276}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00276}.
CC   -!- SIMILARITY: Belongs to the KdpC family. {ECO:0000255|HAMAP-
CC       Rule:MF_00276}.
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DR   EMBL; BA000019; BAB75942.1; -; Genomic_DNA.
DR   PIR; AD2336; AD2336.
DR   RefSeq; WP_010998381.1; NZ_RSCN01000010.1.
DR   AlphaFoldDB; Q8YPF1; -.
DR   SMR; Q8YPF1; -.
DR   STRING; 103690.17133378; -.
DR   EnsemblBacteria; BAB75942; BAB75942; BAB75942.
DR   KEGG; ana:all4243; -.
DR   eggNOG; COG2156; Bacteria.
DR   OMA; PDLKWFQ; -.
DR   OrthoDB; 1912405at2; -.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0008556; F:P-type potassium transmembrane transporter activity; IEA:InterPro.
DR   HAMAP; MF_00276; KdpC; 1.
DR   InterPro; IPR003820; KdpC.
DR   PANTHER; PTHR30042; PTHR30042; 1.
DR   Pfam; PF02669; KdpC; 1.
DR   PIRSF; PIRSF001296; K_ATPase_KdpC; 1.
DR   TIGRFAMs; TIGR00681; kdpC; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cell inner membrane; Cell membrane; Ion transport; Membrane;
KW   Nucleotide-binding; Potassium; Potassium transport; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..199
FT                   /note="Potassium-transporting ATPase KdpC subunit 2"
FT                   /id="PRO_0000196984"
FT   TRANSMEM        13..33
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00276"
SQ   SEQUENCE   199 AA;  21938 MW;  D4AB0499EA26DB10 CRC64;
     MSFIREILRA IRITLIFWLV TAIIYPLAIL VVGQGLFPIQ ANGSIMENIE GTPIGSTLIS
     QVFTSEKYFH SRPSAVRYSQ GRKAKPTGIS GGSNLAPSNP ALLERIIEEA NQLRDENVQP
     IADLIYSSGS GLDPHISVQA ARQQLERVAR ARGVQPDEIL LAINKFTDGR FLGIFGEPGV
     NVLRLNYALD LQDINRQQN