NHAB_ECOLC
ID NHAB_ECOLC Reviewed; 513 AA.
AC B1IUA6;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 29-APR-2008, 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=EcolC_2439;
OS Escherichia coli (strain ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 /
OS WDCM 00012 / Crooks).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=481805;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 / WDCM 00012 / Crooks;
RA Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C.,
RA Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA Mikhailova N., Ingram L., Richardson P.;
RT "Complete sequence of Escherichia coli C str. ATCC 8739.";
RL Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
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}.
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; CP000946; ACA78073.1; -; Genomic_DNA.
DR RefSeq; WP_000406391.1; NZ_CP022959.1.
DR AlphaFoldDB; B1IUA6; -.
DR SMR; B1IUA6; -.
DR GeneID; 66674994; -.
DR KEGG; ecl:EcolC_2439; -.
DR HOGENOM; CLU_041110_0_0_6; -.
DR OMA; QFEMLAV; -.
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_1000148036"
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; 56728 MW; B5D85BD8E761E2BB 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 QQFDDQSRHQ RTRQDKIRLI
VQAIIGVWLV TALALHLAEV GLIGLSVIIL ATSLTGVTDE HAIGKAFTES LPFTALLTVF
FSVVAVIIDQ QLFSPIIQFV LQASEHAQLS LFYIFNGLLS SISDNVFVGT IYINEAKAAM
ESGAITLKQY ELLAVAINTG TNLPSVATPN GQAAFLFLLT SALAPLIRLS YGRMVWMALP
YTLVLTLVGL LCVEFTLAPV TEWFMQMGWI ATL
