[Term] id: PR:000046813 name: collagen alpha-1(XVIII) chain, signal peptide removed 4-hydroxy-proline form (human) def: "A collagen alpha-1(XVIII) chain (human) that has had the signal peptide removed and that includes at least one 4-hydroxy-proline. UniProtKB:P39060, 24-1754, MOD:00039." [PRO:DNx, Reactome:R-HSA-2172944, Reactome:R-HSA-2192845] comment: Category=organism-modification. synonym: "hCOL18A1/SigPep-/4HyPro+" EXACT PRO-short-label [PRO:DNx] synonym: "PRO_0000005793, MOD:00039" EXACT PRO-proteoform-ftid [PRO:DNx] synonym: "UniProtKB:P39060, 24-1754, MOD:00039" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-2172944 "PR:000046813 located_in GO:0005788" xref: Reactome:R-HSA-2192845 "PR:000046813 located_in GO:0005576" intersection_of: PR:P39060 ! collagen alpha-1(XVIII) chain (human) intersection_of: has_part MOD:00039 ! 4-hydroxy-L-proline intersection_of: lacks_part SO:0000418 ! signal_peptide relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens