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2.A.36.5.6
Na+/Li+/H+ exchanger of 545 aas and 12 TMSs, NHX3.  It is localized to the tonoplast membrane where it increases salt tolerance and reduces Li+ toxicity.  TMS 11 is important in Li+ and Na+ transport (Pan et al. 2017).

Accession Number:AQN76374.1
Protein Name:AQN76374.1 Na+/H+ antiporter [Populus euphratica]
Length:546
Molecular Weight:
Species:Populus euphratica [75702]
Number of TMSs:12
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MEAHMSSIGS KLQMLSTSDH ASVVSMNLFV ALLCACIVIG HLLEETRWMN ESITALIIGV 
61:	GTGIVILLIS GGKSSRLLVF SEDLFFIYLL PPIIFNAGFQ VKKKQFFRNF MTIILFGAVG 
121:	TLICCAIISI GAMQIFEKMD IGPLDIGDYL AIGAIFAATD SVCTLQVLSQ DDTPLLYSLV 
181:	FGEGVVNDAT SVVLFNAIQS FDLTNINAVI AWEFVRNFLY LFLTSTMLGV LTGLVSAYII 
241:	KKLYFGRHST DREVALMILM AYLSYMLAEL FYLSGILTVF FCGIVMSHYT WHNVTESSRV 
301:	TTKHAFATLS FVAEIFIFLY VGMDALDIEK WRFVSDSPGT SVAVSSILLG LVMVGRAAFV 
361:	FPLSFVSNLS KKSPHEKIGF RQQFIIWWAG LMRGAVSMAL AYNKFTSAGH TNLRANAIMI 
421:	TSTITVVLFS TVVFGLMTKP LISILLPHPK YQSRSLSFSS DPATPKSFTV PLLGEGQDSL 
481:	DDLGGRDIPR PSSLRALLTT PTHTVHYYWR KFDNAFMRPM FGGRGFVPFV PGSPTERNPP 
541:	QNQWH