| GO term | GO name | GO namespace | GO def |
| GO:0019864 | IgG binding | molecular_function | Binding to an immunoglobulin of an IgG isotype. [GOC:add, ISBN:0781735149] |
| GO:0034235 | GPI anchor binding | molecular_function | Binding to a glycosylphosphatidylinositol anchor. GPI anchors serve to attach membrane proteins to the lipid bilayer of cell membranes. [GOC:vw] |
| GO:0006955 | immune response | biological_process | Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat. [GO_REF:0000022, GOC:add] |
| GO:0005576 | extracellular region | cellular_component | The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite. [GOC:go_curators] |
| GO:0005886 | plasma membrane | cellular_component | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. [ISBN:0716731363] |
| GO:0030667 | secretory granule membrane | cellular_component | The lipid bilayer surrounding a secretory granule. [GOC:mah] |
| GO:0070062 | extracellular exosome | cellular_component | A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm. [GOC:BHF, GOC:mah, GOC:vesicles, PMID:15908444, PMID:17641064, PMID:19442504, PMID:19498381, PMID:22418571, PMID:24009894] |
| GO:0098552 | side of membrane | cellular_component | A cellular component consisting of one leaflet of a membrane bilayer and any proteins embedded or anchored in it or attached to its surface. [GOC:dos] |
| GO:0019770 | IgG receptor activity | molecular_function | Combining with an immunoglobulin of an IgG isotype via the Fc region, and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity. [GOC:add, GOC:signaling, ISBN:0781735149] |
| GO:0001788 | antibody-dependent cellular cytotoxicity | biological_process | Cytolysis of target cells by natural killer cells, eosinophils, neutrophils, monocytes, or macrophages following engagement of antibodies bound to the target cells by Fc receptors on the effector cells. [GOC:pr, ISBN:0781735149, PMID:11677095, PMID:9581795] |
| GO:0007166 | cell surface receptor signaling pathway | biological_process | The series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription. [GOC:bf, GOC:mah, GOC:pr, GOC:signaling] |
| GO:0009897 | external side of plasma membrane | cellular_component | The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface. [GOC:dos, GOC:tb] |