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2.A.36.7.10
Na+/H+ antiporter of 1145 aas and 12 TMSs, SOS1.  Suppresses salt (200 mM NaCl) sensitivity, promoting tolerance (Wu et al. 2007). It is 65% identical to the A. thaliana homologue (TC# 2.A.36.7.6). In Solanum tuberosum, there are 37 salt overly sensitive 1 (SOS1) genes (Liang et al. 2023). Most of the gene products are located in the plasma membrane. Promoter analysis revealed that the majority of these StSOS1 genes contain abundant cis-elements involved in various abiotic stress responses. Tissue specific expression showed that 21 of the 37 StSOS1s are widely expressed in various tissues or organs of the potato. Molecular interaction network analysis suggests that 25 StSOS1s may interact with other proteins involved in potassium ion transmembrane transport and response to salt stress. RT-qPCR results revealed that the expression of StSOS1s are significant modulated by various abiotic stresses, in particular salt and abscisic acid stress (Liang et al. 2023). 

Accession Number:Q19N58
Protein Name:Na+/H+ antiporter
Length:1145
Molecular Weight:126859.00
Species:Populus euphratica (Euphrates poplar) [75702]
Number of TMSs:13
Substrate sodium(1+), hydron

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MGSAIEKGVG LPYRILESSS SSSAASDEWN PTDTVLFFGF SLLLGIACRH LLRGTRVPYT 
61:	VALLVVGIAL GSLEYGTSHK LGRIGDGIRL WAHIDPDLLL AVFLPALLFE SSFSMEVHQI 
121:	KRCMGQMLLL AVPGVLISTC CLGCALKLIF PYNWSWTTSL LLGGLLSATD PVAVVALLKE 
181:	LGASKKLSTI IEGESLMNDG TAIVVYQLFY RMVLGESFNS GAIIKFLTQV SLGAVGIGIA 
241:	FGIASFLWLG FIFNDTVIEI ALTLAVSYVT YFTAQEGAAV SGVLAVMTLG MFYAAVARTA 
301:	FKGDGQQSLH HFWEMVAYIA NTLIFILSGV VIAEGVLSSG NTFHRHAHTW GYLFLLYAFV 
361:	LLSRFIVVGV LYPILRYFGY GLEWKEAIIV IWSGLRGAVA LSLSLSVKRT SDSSVYLSSD 
421:	TGTLFVFFTG GIVFLTLIVN GSTTQFILHL LDMDKLSATK KRLLNFTKYE MLNKALEAFG 
481:	DLGEDEELGP VDWPTVKRYI PSLNSLEGSC EHPHGASEAD NNLDPTNLKD IRIRLLNGVQ 
541:	AAYWGMLDEG RITQTTANIL MQSVDEAIDL ASHEPLCDWK GLQSNVHFPN YYKFLQASIF 
601:	PQKMVTYFTV ERLESACYIC AAFLRAHRIA RRQLHDFIGD SGIASLVINE SNAEGEEARK 
661:	FLEDVRVTFP QVLRVVKTRQ ATYSVLNHLI DYVQNLEKVG LLEEKEMLHL HDAVQTDLKR 
721:	FLRNPPLVML PKITDLISVH PLLEALPSIV REPLERSSKE IMKPRGVPLY KEGSKPNGVW 
781:	LISSGVVKWT SKSVRSKHSL HPTFTHGSTL GLYELLVGKR CICDIITDSV VFCFFIESEN 
841:	MLSLLGSDPA IEDFLWQESA IVIAKLLLPQ VFEKMPMQEL RALVAERSVM TTYLRGETIE 
901:	IPHHSIGFLL EGFIKAHGFQ DELIASPAVL LPPQGNQSFQ KIGMSGAQAA SFSHQGSRYQ 
961:	VEARARVIIF DIAAFEADGA LRRGSSSLVL GDHPHRYFTR EHGGLMSWPE NFYKPREREQ 
1021:	NGVGTSRSEN SLSVRAMQLS IFGSMVDMRR HAHSFSGSQV KRSHSLSVLR NASYQQVRVP 
1081:	SDEATYARKS LEVRKLIGKT HAPPPQSTGT NETRIIDNYS DESDAEDELV VRIDSPRTLS 
1141:	FHHAS