[Term] id: PR:000046579 name: cystathionine beta-synthase, initiator methionine removed pyridoxal phosphate lysine 1 (human) def: "A cystathionine beta-synthase (human) that has had the initiator methionine removed and has been post-translationally modified to include pyridoxal phosphate lysine at position 119 of the amino acid sequence represented by UniProtKB:P35520. UniProtKB:P35520, 2-551, Lys-119, MOD:00128." [PRO:DNx, Reactome:R-HSA-1614563] comment: Category=organism-modification. synonym: "hCBS/InitMet-/Pyrdox:1" EXACT PRO-short-label [PRO:DNx] synonym: "PRO_0000167133, Lys-119, MOD:00128" EXACT PRO-proteoform-ftid [PRO:DNx] synonym: "UniProtKB:P35520, 2-551, Lys-119, MOD:00128" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-1614563 "PR:000046579 located_in GO:0005829" is_a: PR:P35520 ! cystathionine beta-synthase (human) relationship: has_part MOD:00128 ! N6-pyridoxal phosphate-L-lysine relationship: lacks_part PR:000021937 ! initiator methionine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens