ID   NHAA2_FLAJ1             Reviewed;         408 AA.
AC   A5FBK7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-2022, entry version 85.
DE   RecName: Full=Na(+)/H(+) antiporter NhaA 2 {ECO:0000255|HAMAP-Rule:MF_01844};
DE   AltName: Full=Sodium/proton antiporter NhaA 2 {ECO:0000255|HAMAP-Rule:MF_01844};
GN   Name=nhaA2 {ECO:0000255|HAMAP-Rule:MF_01844}; OrderedLocusNames=Fjoh_4405;
OS   Flavobacterium johnsoniae (strain ATCC 17061 / DSM 2064 / JCM 8514 / NBRC
OS   14942 / NCIMB 11054 / UW101) (Cytophaga johnsonae).
OC   Bacteria; Bacteroidetes; Flavobacteriia; Flavobacteriales;
OC   Flavobacteriaceae; Flavobacterium.
OX   NCBI_TaxID=376686;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17061 / DSM 2064 / JCM 8514 / NBRC 14942 / NCIMB 11054 / UW101;
RX   PubMed=19717629; DOI=10.1128/aem.01495-09;
RA   McBride M.J., Xie G., Martens E.C., Lapidus A., Henrissat B., Rhodes R.G.,
RA   Goltsman E., Wang W., Xu J., Hunnicutt D.W., Staroscik A.M., Hoover T.R.,
RA   Cheng Y.Q., Stein J.L.;
RT   "Novel features of the polysaccharide-digesting gliding bacterium
RT   Flavobacterium johnsoniae as revealed by genome sequence analysis.";
RL   Appl. Environ. Microbiol. 75:6864-6875(2009).
CC   -!- FUNCTION: Na(+)/H(+) antiporter that extrudes sodium in exchange for
CC       external protons. {ECO:0000255|HAMAP-Rule:MF_01844}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 H(+)(out) + Na(+)(in) = 2 H(+)(in) + Na(+)(out);
CC         Xref=Rhea:RHEA:29251, ChEBI:CHEBI:15378, ChEBI:CHEBI:29101;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01844};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:29252;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01844};
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01844}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01844}.
CC   -!- SIMILARITY: Belongs to the NhaA Na(+)/H(+) (TC 2.A.33) antiporter
CC       family. {ECO:0000255|HAMAP-Rule:MF_01844}.
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DR   EMBL; CP000685; ABQ07411.1; -; Genomic_DNA.
DR   RefSeq; WP_012026377.1; NC_009441.1.
DR   AlphaFoldDB; A5FBK7; -.
DR   SMR; A5FBK7; -.
DR   EnsemblBacteria; ABQ07411; ABQ07411; Fjoh_4405.
DR   KEGG; fjo:Fjoh_4405; -.
DR   eggNOG; COG3004; Bacteria.
DR   HOGENOM; CLU_015803_1_2_10; -.
DR   OMA; MGLMLRC; -.
DR   OrthoDB; 1805428at2; -.
DR   Proteomes; UP000006694; 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:0015297; F:antiporter activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0015081; F:sodium ion transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006885; P:regulation of pH; IEA:InterPro.
DR   Gene3D; 1.20.1530.10; -; 1.
DR   HAMAP; MF_01844; NhaA; 1.
DR   InterPro; IPR023171; Na/H_antiporter_dom_sf.
DR   InterPro; IPR004670; NhaA.
DR   PANTHER; PTHR30341; PTHR30341; 1.
DR   Pfam; PF06965; Na_H_antiport_1; 1.
DR   TIGRFAMs; TIGR00773; NhaA; 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..408
FT                   /note="Na(+)/H(+) antiporter NhaA 2"
FT                   /id="PRO_0000334292"
FT   TRANSMEM        36..56
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        79..99
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        115..135
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        145..165
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        174..194
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        197..217
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        225..245
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        281..301
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        310..330
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        348..368
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
FT   TRANSMEM        381..401
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01844"
SQ   SEQUENCE   408 AA;  43972 MW;  083F2AD109997579 CRC64;
     MDLLGILSPN AYFCSMAKLI NLKIFTHFFR SSAAGGILLL ICVLVSLIVA NTGLGVHFND
     FLGYPLGFEA AGLQLRYPIL LWINDGLMAV FFLLVGLEIK REVIEGELSS LRHAALPVLA
     AVGGVIIPAL IYFLFNGQSP DTAKGWGIPM ATDIAFALGI LSLLGDKVPS GLKIFLAALA
     IVDDLIAILV IAVFYSSELH FLYLGYAGGI FVLLMVFNRL GVKNLFFYLL PGAVMWYFIH
     HSGIHATIAG VLTALTLPTN QEDKDSPLEK LEHALARPVN FIIMPVFALA NTNIAFESEM
     LQGLTGNLGL GIILGLVLGK PIGIFVMSWL SVKIRAADLP AQTTWTHVLG LGLLGGIGFT
     MSIFIALLSF QEQAYQNEAK FAILTASVLA GAAGFILLSS YNKNKQEQ