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2.A.18.9.2
SLC38A9 of 549 aas and 111 TMSs.  The crystal structure of this lysosomal transporter with arginine bound in the inward facing conformation has been solved (Lei et al. 2018). The bound arginine was locked in a transitional state stabilized by TMS1, which was anchored at the groove between TM5 and TM7. These anchoring interactions were mediated by the highly conserved WNTMM motif in TMS1, and mutations in this motif abolished arginine transport (Lei et al. 2018).

Accession Number:Q08BA4
Protein Name:Sodium-coupled neutral amino acid transporter 9
Length:549
Molecular Weight:61897.00
Species:Danio rerio (Zebrafish) [7955]
Number of TMSs:11
Location1 / Topology2 / Orientation3: Lysosome membrane1 / Multi-pass membrane protein2
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MDEDSKPLLG SVPTGDYYTD SLDPKQRRPF HVEPRNIVGE DVQERVSAEA AVLSSRVHYY 
61:	SRLTGSSDRL LAPPDHVIPS HEDIYIYSPL GTAFKVQGGD SPIKNPSIVT IFAIWNTMMG 
121:	TSILSIPWGI KQAGFTLGII IIVLMGLLTL YCCYRVLKST KSIPYVDTSD WEFPDVCKYY 
181:	FGGFGKWSSL VFSLVSLIGA MVVYWVLMSN FLFNTGKFIF NYVHNVNTSD AFGTNGTERV 
241:	ICPYPDVDPH GNSSTSLYSG SDNSTGLEFD HWWSKTNTIP FYLILLLLPL LNFRSASFFA 
301:	RFTFLGTISV IYLIFLVTYK AIQLGFHLEF HWFDSSMFFV PEFRTLFPQL SGVLTLAFFI 
361:	HNCIITLMKN NKHQENNVRD LSLAYLLVGL TYLYVGVLIF AAFPSPPLSK ECIEPNFLDN 
421:	FPSSDILVFV ARTFLLFQMT TVYPLLGYLV RVQLMGQIFG NHYPGFLHVF VLNVFVVGAG 
481:	VLMARFYPNI GSIIRYSGAL CGLALVFVLP SLIHMVSLKR RGELRWTSTL FHGFLILLGV 
541:	ANLLGQFFM