obsolete GPI anchor biosynthetic process via N-seryl-glycosylphosphatidylinositolethanolamine (obsolete GO:0018269)
OBSOLETE. The chemical reactions and pathways resulting in the formation of a C-terminal peptidyl-serine ethanolamide-linked glycosylphosphatidylinositol (GPI) anchor following hydrolysis of a seryl-peptide bond in the carboxy-terminal region of a membrane-associated protein.