[Term] id: PR:000003372 name: collagen alpha-1(I) chain isoform 1 mature form def: "A collagen alpha-1(I) chain isoform 1, signal peptide removed form that has been processed by subsequent removal of all propeptides. Example: UniProtKB:P02452-1, 162-1218." [PRO:CNA] comment: Category=modification. synonym: "COL1A1/iso:1/mature" EXACT PRO-short-label [PRO:DNx] synonym: "collagen alpha-1(I) chain mature" EXACT [] synonym: "collagen alpha-1(I) chain" BROAD [PRO:DNx] intersection_of: PR:000021925 ! collagen alpha-1(I) chain isoform 1, signal peptide removed form intersection_of: output_of GO:0016485 ! protein processing intersection_of: lacks_part SO:0001062 ! propeptide