macrophages express distinct plasma membrane receptors for different isotypes of immunoglobulin , bear at least two receptors for cleaved third complement component ( cr1 and cr3 ) and have a lectin-like receptor that mediates endocytosis of glycoproteins or glycoconjugates with terminal mannose or fucose residues ( mfr ) .
C0007603
plasma membrane
C0079785
cr3