ID   MDTK_ECOBW              Reviewed;         457 AA.
AC   C4ZYC7;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   25-MAY-2022, entry version 69.
DE   RecName: Full=Multidrug resistance protein MdtK {ECO:0000255|HAMAP-Rule:MF_00400};
DE   AltName: Full=Multidrug-efflux transporter {ECO:0000255|HAMAP-Rule:MF_00400};
GN   Name=mdtK {ECO:0000255|HAMAP-Rule:MF_00400}; OrderedLocusNames=BWG_1479;
OS   Escherichia coli (strain K12 / MC4100 / BW2952).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=595496;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / MC4100 / BW2952;
RX   PubMed=19376874; DOI=10.1128/jb.00118-09;
RA   Ferenci T., Zhou Z., Betteridge T., Ren Y., Liu Y., Feng L., Reeves P.R.,
RA   Wang L.;
RT   "Genomic sequencing reveals regulatory mutations and recombinational events
RT   in the widely used MC4100 lineage of Escherichia coli K-12.";
RL   J. Bacteriol. 191:4025-4029(2009).
CC   -!- FUNCTION: Multidrug efflux pump that functions probably as a Na(+)/drug
CC       antiporter. {ECO:0000255|HAMAP-Rule:MF_00400}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00400}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00400}.
CC   -!- SIMILARITY: Belongs to the multi antimicrobial extrusion (MATE) (TC
CC       2.A.66.1) family. MdtK subfamily. {ECO:0000255|HAMAP-Rule:MF_00400}.
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DR   EMBL; CP001396; ACR63819.1; -; Genomic_DNA.
DR   RefSeq; WP_001174940.1; NC_012759.1.
DR   AlphaFoldDB; C4ZYC7; -.
DR   SMR; C4ZYC7; -.
DR   KEGG; ebw:BWG_1479; -.
DR   HOGENOM; CLU_012893_6_0_6; -.
DR   OMA; EFWILLK; -.
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:0015297; F:antiporter activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0042910; F:xenobiotic transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006814; P:sodium ion transport; IEA:UniProtKB-UniRule.
DR   GO; GO:0006855; P:xenobiotic transmembrane transport; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00400; MdtK; 1.
DR   InterPro; IPR002528; MATE_fam.
DR   InterPro; IPR022913; Multidrug-R_MdtK.
DR   Pfam; PF01554; MatE; 2.
DR   PIRSF; PIRSF006603; DinF; 1.
DR   TIGRFAMs; TIGR00797; matE; 1.
PE   3: Inferred from homology;
KW   Antiport; Cell inner membrane; Cell membrane; Ion transport; Membrane;
KW   Sodium; Sodium transport; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..457
FT                   /note="Multidrug resistance protein MdtK"
FT                   /id="PRO_1000205877"
FT   TRANSMEM        11..31
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        53..73
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        93..113
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        127..147
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        160..180
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        189..209
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        243..263
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        276..296
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        314..334
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        350..370
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        387..407
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
FT   TRANSMEM        418..438
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00400"
SQ   SEQUENCE   457 AA;  49447 MW;  33A60FC42ED6CFD7 CRC64;
     MQKYISEARL LLALAIPVIL AQIAQTAMGF VDTVMAGGYS ATDMAAVAIG TSIWLPAILF
     GHGLLLALTP VIAQLNGSGR RERIAHQVRQ GFWLAGFVSV LIMLVLWNAG YIIRSMENID
     PALADKAVGY LRALLWGAPG YLFFQVARNQ CEGLAKTKPG MVMGFIGLLV NIPVNYIFIY
     GHFGMPELGG VGCGVATAAV YWVMFLAMVS YIKRARSMRD IRNEKGTAKP DPAVMKRLIQ
     LGLPIALALF FEVTLFAVVA LLVSPLGIVD VAGHQIALNF SSLMFVLPMS LAAAVTIRVG
     YRLGQGSTLD AQTAARTGLM VGVCMATLTA IFTVSLREQI ALLYNDNPEV VTLAAHLMLL
     AAVYQISDSI QVIGSGILRG YKDTRSIFYI TFTAYWVLGL PSGYILALTD LVVEPMGPAG
     FWIGFIIGLT SAAIMMMLRM RFLQRLPSAI ILQRASR