A subclass of lipid-linked proteins that contain a GLYCOSYLPHOSPHATIDYLINOSITOL LINKAGE which holds them to the CELL MEMBRANE.

Synonyms: GPI Linked Membrane Proteins, GPI Anchored Proteins, GPI-Linked Proteins, Proteins, GPI-Anchored, GPI-Linked Membrane Proteins, Membrane Proteins, GPI-Linked, Glycosylphosphatidylinositol Linked Proteins, GPI-Anchored Proteins, 0, GPI Linked Proteins, Proteins, GPI-Linked, Proteins, GPI-Linked Membrane, Proteins, Glycosylphosphatidylinositol Linked