Which of the following types of amino acid transporters is responsible for transporting neutral amino acids across the blood-brain barrier?

A Na+/amino acid cotransporter
B Na+/amino acid exchanger
C Large Neutral Amino Acid Transporter (LAT1) ✓
D Glutamate transporter

Explanation

The Large Neutral Amino Acid Transporter (LAT1) is a type of amino acid transporter that is responsible for transporting neutral amino acids, such as phenylalanine and tyrosine, across the blood-brain barrier.

Mnemonic

'LAT' = 'large' → transports large neutral amino acids

Source

Brosnan (2003) Amino Acids in Nutrition and Health
Protein Metabolism Biochemistry Amino Acid Transport Hard MEDICAL Confidence: high