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2.A.3.3.7
solute carrier family 7 (orphan transporter), member 14, SLC7A14 of 771 aas and 15 or 16 TMSs. SLC7A14 mutations occur in patients with inherited retinal dystrophy (autosomal recessive retinitis pigmentosa (RP) and Leber congenital amaurosis (LCA) (Guo et al. 2019). It is a pH-dependent, trans-stimulated, low affinity cationic amino acid (e.g., arg and lys) system that is inhibited by α-trimethyl-L-lysine, properties assigned to lysosomal transport system c in human skin fibroblasts (Jaenecke et al. 2012).

Accession Number:Q8TBB6
Protein Name:Probable cationic amino acid transporter
Length:771
Molecular Weight:84052.00
Species:Homo sapiens (Human) [9606]
Number of TMSs:15
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate

Cross database links:

Entrez Gene ID: 57709   
KEGG: hsa:57709    hsa:57709   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0015171 F:amino acid transmembrane transporter activity
GO:0010923 P:negative regulation of phosphatase activity

References (8)

[1] “Complete sequencing and characterization of 21,243 full-length human cDNAs.”  Ota T.et.al.   14702039
[2] “The DNA sequence, annotation and analysis of human chromosome 3.”  Muzny D.M.et.al.   16641997
[3] “The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).”  The MGC Project Teamet.al.   15489334
[4] “Prediction of the coding sequences of unidentified human genes. XVIII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro.”  Nagase T.et.al.   10997877
[5] “Complete sequencing and characterization of 21,243 full-length human cDNAs.”  Ota T.et.al.   14702039
[6] “The DNA sequence, annotation and analysis of human chromosome 3.”  Muzny D.M.et.al.   16641997
[7] “The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).”  The MGC Project Teamet.al.   15489334
[8] “Prediction of the coding sequences of unidentified human genes. XVIII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro.”  Nagase T.et.al.   10997877

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MSGFFTSLDP RRVQWGAAWY AMHSRILRTK PVESMLEGTG TTTAHGTKLA QVLTTVDLIS 
61:	LGVGSCVGTG MYVVSGLVAK EMAGPGVIVS FIIAAVASIL SGVCYAEFGV RVPKTTGSAY 
121:	TYSYVTVGEF VAFFIGWNLI LEYLIGTAAG ASALSSMFDS LANHTISRWM ADSVGTLNGL 
181:	GKGEESYPDL LALLIAVIVT IIVALGVKNS IGFNNVLNVL NLAVWVFIMI AGLFFINGKY 
241:	WAEGQFLPHG WSGVLQGAAT CFYAFIGFDI IATTGEEAKN PNTSIPYAIT ASLVICLTAY 
301:	VSVSVILTLM VPYYTIDTES PLMEMFVAHG FYAAKFVVAI GSVAGLTVSL LGSLFPMPRV 
361:	IYAMAGDGLL FRFLAHVSSY TETPVVACIV SGFLAALLAL LVSLRDLIEM MSIGTLLAYT 
421:	LVSVCVLLLR YQPESDIDGF VKFLSEEHTK KKEGILADCE KEACSPVSEG DEFSGPATNT 
481:	CGAKNLPSLG DNEMLIGKSD KSTYNVNHPN YGTVDMTTGI EADESENIYL IKLKKLIGPH 
541:	YYTMRIRLGL PGKMDRPTAA TGHTVTICVL LLFILMFIFC SFIIFGSDYI SEQSWWAILL 
601:	VVLMVLLIST LVFVILQQPE NPKKLPYMAP CLPFVPAFAM LVNIYLMLKL STITWIRFAV 
661:	WCFVGLLIYF GYGIWNSTLE ISAREEALHQ STYQRYDVDD PFSVEEGFSY ATEGESQEDW 
721:	GGPTEDKGFY YQQMSDAKAN GRTSSKAKSK SKHKQNSEAL IANDELDYSP E