Peptide sequence: LGFIMVSGFV KGSVKNWQLT EEDFGNTSGR LCLNNDTKEG KPGVGGFMPF Sequence homology: Cow: 100%; Horse: 93%; Human: 100%; Pig: 86%; Rabbit: 100%. SLC7A1 is a high-affinity, low capacity permease involved in the transport of the cationic amino acids