GO:0005576; C:extracellular region; NAS:UniProtKB.
GO:0005886; C:plasma membrane; TAS:Reactome.
GO:0003823; F:antigen binding; NAS:UniProtKB.
GO:0006958; P:complement activation, classical pathway; TAS:Reactome.
GO:0038096; P:Fc-gamma receptor signaling pathway involved in phagocytosis; TAS:Reactome.
GO:0045087; P:innate immune response; TAS:Reactome.