ID   KUP2_LACLA              Reviewed;         671 AA.
AC   Q9CHU4;
DT   27-SEP-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   25-MAY-2022, entry version 91.
DE   RecName: Full=Probable potassium transport system protein kup 2 {ECO:0000255|HAMAP-Rule:MF_01522};
GN   Name=kup2 {ECO:0000255|HAMAP-Rule:MF_01522}; Synonyms=kupB;
GN   OrderedLocusNames=LL0624; ORFNames=L11749;
OS   Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Lactococcus.
OX   NCBI_TaxID=272623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IL1403;
RX   PubMed=11337471; DOI=10.1101/gr.gr-1697r;
RA   Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J.,
RA   Ehrlich S.D., Sorokin A.;
RT   "The complete genome sequence of the lactic acid bacterium Lactococcus
RT   lactis ssp. lactis IL1403.";
RL   Genome Res. 11:731-753(2001).
CC   -!- FUNCTION: Transport of potassium into the cell. {ECO:0000255|HAMAP-
CC       Rule:MF_01522}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01522};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01522}.
CC   -!- SIMILARITY: Belongs to the HAK/KUP transporter (TC 2.A.72) family.
CC       {ECO:0000255|HAMAP-Rule:MF_01522}.
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; AE005176; AAK04722.1; -; Genomic_DNA.
DR   PIR; H86702; H86702.
DR   RefSeq; NP_266780.1; NC_002662.1.
DR   RefSeq; WP_003129537.1; NC_002662.1.
DR   AlphaFoldDB; Q9CHU4; -.
DR   STRING; 272623.L11749; -.
DR   PaxDb; Q9CHU4; -.
DR   EnsemblBacteria; AAK04722; AAK04722; L11749.
DR   KEGG; lla:L11749; -.
DR   PATRIC; fig|272623.7.peg.666; -.
DR   eggNOG; COG3158; Bacteria.
DR   HOGENOM; CLU_008142_4_1_9; -.
DR   OMA; AADQFEI; -.
DR   Proteomes; UP000002196; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0015079; F:potassium ion transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01522; Kup; 1.
DR   InterPro; IPR003855; K+_transporter.
DR   InterPro; IPR023051; K+_uptake_low_affin.
DR   PANTHER; PTHR30540; PTHR30540; 1.
DR   Pfam; PF02705; K_trans; 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..671
FT                   /note="Probable potassium transport system protein kup 2"
FT                   /id="PRO_0000209025"
FT   TRANSMEM        18..38
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        60..80
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        103..123
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        146..166
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        173..193
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        218..238
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        252..272
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        292..312
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        343..363
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        373..393
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        402..422
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
FT   TRANSMEM        424..444
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01522"
SQ   SEQUENCE   671 AA;  75477 MW;  4AA91B048428AD8D CRC64;
     MGQVHLHNRS FNKATSAGFL IALGIVYGDI GTSPLYAMQA IVRGQGGLAN LSESFILGAV
     SLVIWTLTLI TTVKYVLIAL KADNHHEGGI FSLFTLVRRM RKWLIIPAMI GGATLLADGA
     LTPAVTVTSA IEGLRGVTHV YSNQTAVMVT TLIILAFLFL IQRFGASLVG RLFGPIMFIW
     FGFLGVSGLI NSFLDLSILK AINPYYAIHL LFSPENKAGF FILGSIFLVT TGAEALYSDL
     GHVGRGNIYV SWPFVKICII LSYCGQGAWL LAHRGEHIEK LNPFFAVLPD NMVIYVVILS
     TLAAIIASQA LISGSFTLVS EAIRLKLLPL FKIYYPGQTL GQLYIPAVNF ALWVTTSFFV
     LYFKTSEHME AAYSLAITIT MLMTTTLLTY FLIQKGTPKI AIAIISIGLF CIEGSFFAAS
     LVQFINGAYI VVLIALAIIF VMFIWNKSHK IVMKYIKSLN INEYKNQLNA LRHDESYDLY
     QTNVVYLTSK MDHEWIDRSI LYSILDKRPK RAECYWFVNV KVTDEPYTSE YKVDMMDTDF
     IVRVNLYLGF RMRQEVPRYL RTIVTDLMES GRLPRQHQHY SITPGRKVGD FRFVVVEEKL
     MNARQMPGFE RFVLQTKAQI KRITASPIRW FGLQFSEVTV ETVPLVLSDV RNLEIHERLE
     QVDEAEASAT H