Which of the following proteins is responsible for the transport of amino acids across the blood-brain barrier?

A Glut1
B LAT1 ✓
C SNAT2
D GLUT3

Explanation

LAT1 (Large Amino Acid Transporter 1) is a protein responsible for the transport of amino acids across the blood-brain barrier, playing a crucial role in maintaining brain amino acid homeostasis.

Mnemonic

_LAT1 = 'large' transporter

Source

Pardridge, Brain Drug Targeting
Protein Metabolism Physiology Amino Acid Transport Hard MEDICAL Confidence: medium