[Term] id: PR:000030151 name: cationic amino acid transporter 4 phosphorylated 1 def: "A cationic amino acid transporter 4 that has been phosphorylated on the residue at the position equivalent to Ser-421 of the amino acid sequence represented by UniProtKB:Q8BLQ7. Example: UniProtKB:Q8BLQ7, Ser-421, MOD:00046." [PRO:HJD, PMID:17114649] comment: Category=modification. Note: Large-scale experiment. synonym: "SLC7A4/Phos:1" EXACT PRO-short-label [PRO:DNx] is_a: PR:000015200 ! cationic amino acid transporter 4 relationship: has_part MOD:00046 ! O-phospho-L-serine