NHAB_ECOK1
ID NHAB_ECOK1 Reviewed; 513 AA.
AC A1AAA9;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 1.
DT 25-MAY-2022, entry version 71.
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=Ecok1_11050;
GN ORFNames=APECO1_298;
OS Escherichia coli O1:K1 / APEC.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=405955;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=17293413; DOI=10.1128/jb.01726-06;
RA Johnson T.J., Kariyawasam S., Wannemuehler Y., Mangiamele P., Johnson S.J.,
RA Doetkott C., Skyberg J.A., Lynne A.M., Johnson J.R., Nolan L.K.;
RT "The genome sequence of avian pathogenic Escherichia coli strain O1:K1:H7
RT shares strong similarities with human extraintestinal pathogenic E. coli
RT genomes.";
RL J. Bacteriol. 189:3228-3236(2007).
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; CP000468; ABJ00599.1; -; Genomic_DNA.
DR RefSeq; WP_000406401.1; NC_008563.1.
DR AlphaFoldDB; A1AAA9; -.
DR EnsemblBacteria; ABJ00599; ABJ00599; APECO1_298.
DR KEGG; ecv:APECO1_298; -.
DR HOGENOM; CLU_041110_0_0_6; -.
DR OMA; QFEMLAV; -.
DR Proteomes; UP000008216; 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: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..513
FT /note="Na(+)/H(+) antiporter NhaB"
FT /id="PRO_0000333091"
FT TRANSMEM 23..43
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 52..72
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 97..117
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 120..140
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 144..164
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 202..222
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 303..323
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 348..368
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 391..411
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 447..467
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
FT TRANSMEM 475..495
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01599"
SQ SEQUENCE 513 AA; 56703 MW; 6D0B74EA11E06AA3 CRC64;
MEISWGRALW RNFLGQSPDW YKLALIIFLI VNPLIFLISP FVAGWLLVAE FIFTLAMALK
CYPLLPGGLL AIEAVFIGMT SAEHVREEVA ANLEVLLLLM FMVAGIYFMK QLLLFIFTRL
LLSIRSKMLL SLSFCVAAAF LSAFLDALTV VAVVISVAVG FYGIYHRVAS SRTEDTDLQD
DSHIDKHYKV VLEQFRGFLR SLMMHAGVGT ALGGVMTMVG EPQNLIIAKA AGWHFGDFFL
RMSPVTVPVL ICGLLTCLLV EKLRWFGYGE TLPEKVREVL QQFDDQSRLQ RTRQDKIRLI
VQAIIGVWLV TALALHLAEV GLIGLSVIIL ATSLTGVTDE HAIGKAFTES LPFTALLTVF
FSVVAVIIDQ QLFSPIIQFV LQASEHAQLS LFYIFNGLLS SISDNVFVGT IYINEAKAAM
KSGAITLKQY ELLAVAINTG TNLPSVATPN GQAAFLFLLT SALAPLIRLS YGRMVWMALP
YTLVLTLVGL LCVEFTLAPV TEWFMQMGWI ATL
