[Term] id: PR:000046835 name: collagen alpha-1(XXI) chain, signal peptide removed form (human) def: "A collagen alpha-1(XXI) chain (human) that has had the signal peptide removed. UniProtKB:Q96P44, 23-957." [PRO:DNx, Reactome:R-HSA-2152277, Reactome:R-HSA-2172382] comment: Category=organism-modification. synonym: "hCOL21A1/SigPep-" EXACT PRO-short-label [PRO:DNx] synonym: "PRO_0000317613" EXACT PRO-proteoform-ftid [PRO:DNx] synonym: "UniProtKB:Q96P44, 23-957" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-2152277 "PR:000046835 located_in GO:0005576" xref: Reactome:R-HSA-2172382 "PR:000046835 located_in GO:0005788" intersection_of: PR:Q96P44 ! collagen alpha-1(XXI) chain (human) intersection_of: lacks_part SO:0000418 ! signal_peptide relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens