Protein
L-cystine transporter YdjN
Organism
Escherichia coli (strain K12)
Function
Involved in L-cystine transport. Can probably also transport L-cysteine. Mediates accumulation of the toxic compounds L-selenaproline (SCA) and L-selenocystine (SeCys).
Similarity
Belongs to the dicarboxylate/amino acid:cation symporter (DAACS) (TC 2.A.23) family.
Sequence
MNFPLIANIVVFVVLLFALAQTRHKQWSLAKKVLVGLVMGVVFGLALHTIYGSDSQVLKDSVQWFNIVGNGYVQLLQMIVMPLVFASILSAVARLHNASQLGKISFLTIGTLLFTTLIAALVGVLVTNLFGLTAEGLVQGGAETARLNAIESNYVGKVSDLSVPQLVLSFIPKNPFADLTGANPTSIISVVIFAAFLGVAALKLLKDDAPKGERVLAAIDTLQSWVMKLVRLVMQLTPYGVLALMTKVVAGSNLQDIIKLGSFVVASYLGLLIMFAVHGILLGINGVSPLKYFRKVWPVLTFAFTSRSSAASIPLNVEAQTRRLGVPESIASFAASFGATIGQNGCAGLYPAMLAVMVAPTVGINPLDPMWIATLVGIVTVSSAGVAGVGGGATFAALIVLPAMGLPVTLVALLISVEPLIDMGRTALNVSGSMTAGTLTSQWLKQTDKAILDSEDDAELAHH