[Term] id: PR:000019414 name: collagen alpha-1(IX) chain, signal peptide removed form def: "A collagen alpha-1(IX) chain that has had the signal peptide removed." [PRO:DNx] comment: Category=modification. synonym: "COL9A1/SigPep-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000005722 ! collagen alpha-1(IX) chain intersection_of: lacks_part SO:0000418 ! signal_peptide