function:Neutral amino acid/proton symporter. Has a pH-dependent electrogenic transport activity for small amino acids such as glycine, alanine and proline. Besides small apolar L-amino acids, it also recognize their D-enantiomers and selected amino acid derivatives such as gamma-aminobutyric acid.,similarity:Belongs to the amino acid/polyamine transporter 2 family.,
Cell membrane ; Multi-pass membrane protein . Lysosome membrane ; Multi-pass membrane protein . In neurons, colocalizes with the exocyst complex in the axonal processes. .
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