哺乳动物氨基酸的跨膜运输由多种氨基酸转运载体蛋白介导，其中L型氨基酸转运载体1（LAT1）属于L系统，主要转运大分子支链氨基酸和芳香族中性氨基酸。
L-type amino acid transporter-1 (LAT1) is a member of the sodium-independent amino acid transport system L and transports large branched-chain and aromatic neutral amino acids.
所述蛋白运载体的特征是被包含细胞质亲和结合结构域的细胞质氨基酸序列分隔的膜靶向肽和跨膜区段。
The protein vehicle is characterized by a membrane-targeting peptide and a trans-membrane segment separated by a cytoplasmic amino acid sequence that includes a cytoplasmic affinity-binding domain.
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