ID   NHAB_VIBCM              Reviewed;         530 AA.
AC   C3LNK5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-JUN-2009, sequence version 1.
DT   25-MAY-2022, entry version 56.
DE   RecName: Full=Na(+)/H(+) antiporter NhaB {ECO:0000255|HAMAP-Rule:MF_01599};
DE   AltName: Full=Sodium/proton antiporter NhaB {ECO:0000255|HAMAP-Rule:MF_01599};
GN   Name=nhaB {ECO:0000255|HAMAP-Rule:MF_01599}; OrderedLocusNames=VCM66_1825;
OS   Vibrio cholerae serotype O1 (strain M66-2).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=579112;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M66-2;
RX   PubMed=19115014; DOI=10.1371/journal.pone.0004053;
RA   Feng L., Reeves P.R., Lan R., Ren Y., Gao C., Zhou Z., Ren Y., Cheng J.,
RA   Wang W., Wang J., Qian W., Li D., Wang L.;
RT   "A recalibrated molecular clock and independent origins for the cholera
RT   pandemic clones.";
RL   PLoS ONE 3:E4053-E4053(2008).
CC   -!- FUNCTION: Na(+)/H(+) antiporter that extrudes sodium in exchange for
CC       external protons. {ECO:0000255|HAMAP-Rule:MF_01599}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3 H(+)(out) + 2 Na(+)(in) = 3 H(+)(in) + 2 Na(+)(out);
CC         Xref=Rhea:RHEA:29247, ChEBI:CHEBI:15378, ChEBI:CHEBI:29101;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01599};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:29248;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01599};
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01599}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01599}.
CC   -!- SIMILARITY: Belongs to the NhaB Na(+)/H(+) (TC 2.A.34) antiporter
CC       family. {ECO:0000255|HAMAP-Rule:MF_01599}.
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DR   EMBL; CP001233; ACP06131.1; -; Genomic_DNA.
DR   RefSeq; WP_001132255.1; NC_012578.1.
DR   AlphaFoldDB; C3LNK5; -.
DR   EnsemblBacteria; ACP06131; ACP06131; VCM66_1825.
DR   GeneID; 57740534; -.
DR   KEGG; vcm:VCM66_1825; -.
DR   HOGENOM; CLU_041110_0_0_6; -.
DR   OMA; QFEMLAV; -.
DR   Proteomes; UP000001217; Chromosome I.
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:0015385; F:sodium:proton antiporter activity; IEA:InterPro.
DR   HAMAP; MF_01599; NhaB; 1.
DR   InterPro; IPR004671; Na+/H+_antiporter_NhaB.
DR   PANTHER; PTHR43302:SF1; PTHR43302:SF1; 1.
DR   Pfam; PF06450; NhaB; 1.
DR   TIGRFAMs; TIGR00774; NhaB; 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..530
FT                   /note="Na(+)/H(+) antiporter NhaB"
FT                   /id="PRO_1000185781"
FT   TRANSMEM        23..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        45..65
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        90..110
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        113..133
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        140..160
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        205..225
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        238..258
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        308..328
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        351..371
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        451..471
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT   TRANSMEM        479..499
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
SQ   SEQUENCE   530 AA;  57661 MW;  8FAE2CCF898CC081 CRC64;
     MPMSLGNAFI KNFLGKAPDW YKVAIIAFLI INPIVFFFIN PFLAGWLLVV EFIFTLAMAL
     KCYPLQPGGL LAIEAIAIGM TSPGQVKHEL VANIEVLLLL VFMVAGIYFM KQLLLFIFTK
     ILLGIRSKVL LSIAFSVTAA FLSAFLDALT VIAVIISVAV GFYSIYHKVA SGQSVHSSHD
     HTHDEGISEL TRDDLENYRA FLRSLLMHAG VGTALGGVTT MVGEPQNLII ADQAGWQFGE
     FLLRMAPVTV PVFIAGMLTC MLVEKFRIFG YGARLPANVR QILLDFDSEE RKNRTNQDVA
     KLWVQGAIAV WLIVGLALHL AAVGLIGLSV IILATAFTGV IEEHSLGKAF EEALPFTALL
     AVFFSIVAVI IDQELFKPVI DAVLNVEDHG TQLALFYVAN GLLSMVSDNV FVGTVYITEV
     KTALMEGMIS RDQFDLLAVA INTGTNLPSV ATPNGQAAFL FLLTSALAPL IRLSYGRMVI
     MAFPYTLALS LVGFIGIMFL LEPMTEVFYS LGWISHHVAP AADALLQSGH