LeuT

LeuT(Leucine Transporter)is a bundled twelve alpha helix protein which belongs to the family of transporters that shuttle amino acids in and out cells.The is mainly made of hydrophobic residues. These are in contact with the inside of the bilayer, while the hydrophilic residues are in contact with the extracellular and intracellular space. Taking into account that it is a transmembrane protein, this is a relevant characteristic, as it can interact both with water and phospholipids.LeuT is one of the dozens of transporters that shuttle amino acids in and out of bacterial cells. Leucine and alanine are the main amino acids that this protein brings across the membrane since it has a high affinity for these small hydrophobic molecule.