Merge pull request #29324 from geneontology/issue-29294b

Added new BP for linker synthesis. #29294

src/ontology/go-edit.obo

@@ -450019,6 +450019,22 @@ property_value: term_tracker_item "https://github.com/geneontology/go-ontology/i
 created_by: sjm
 creation_date: 2024-11-22T10:52:31Z
 
+[Term]
+id: GO:0120532
+name: glycosaminoglycan-protein linkage region biosynthetic process
+namespace: biological_process
+def: "The formation of a tetrasaccharide linker sequence (xylose-galactose-galactose-glucuronate) on specific serine residues of a core protein, on to which dermatan sulfate, chondroitin sulfate, heparan sulfate or heparin glycosaminoglycans may be assembled to synthesise the corresponding proteoglycan." [MetaCyc:PWY-6557]
+synonym: "Glycosaminoglycan biosynthesis, linkage tetrasaccharide" EXACT []
+synonym: "glycosaminoglycan-protein linkage region biosynthesis" EXACT [MetaCyc:PWY-6557]
+xref: MetaCyc:PWY-6557
+is_a: GO:0030166 ! proteoglycan biosynthetic process
+relationship: part_of GO:0015012 ! heparan sulfate proteoglycan biosynthetic process
+relationship: part_of GO:0050650 ! chondroitin sulfate proteoglycan biosynthetic process
+relationship: part_of GO:0050651 ! dermatan sulfate proteoglycan biosynthetic process
+property_value: term_tracker_item "https://github.com/geneontology/go-ontology/issues/29294" xsd:anyURI
+created_by: sjm
+creation_date: 2024-11-27T13:13:42Z
+
 [Term]
 id: GO:0140001
 name: morula formation