molecular function |
| GO:0003823 | | antigen binding | | Interacting selectively and non-covalently with an antigen, any substance which is capable of inducing a specific immune response and of reacting with the products of that response, the specific antibody or specifically sensitized T-lymphocytes, or both. Binding may counteract the biological activity of the antigen. |
| GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| GO:0004872 | | receptor activity | | Combining with an extracellular or intracellular messenger to initiate a change in cell activity. |
| GO:0004888 | | transmembrane signaling receptor activity | | Combining with an extracellular or intracellular signal and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity or state as part of signal transduction. |
| GO:0001618 | | virus receptor activity | | Combining with a virus component and mediating entry of the virus into the cell. |
biological process |
| GO:0035744 | | T-helper 1 cell cytokine production | | Any process that contributes to cytokine production by a T-helper 1 cell. |
| GO:0002250 | | adaptive immune response | | An immune response mediated by cells expressing specific receptors for antigen produced through a somatic diversification process, and allowing for an enhanced secondary response to subsequent exposures to the same antigen (immunological memory). |
| GO:0007155 | | cell adhesion | | The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules. |
| GO:0002376 | | immune system process | | Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats. |
| GO:0045087 | | innate immune response | | Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens. |
| GO:0046649 | | lymphocyte activation | | A change in morphology and behavior of a lymphocyte resulting from exposure to a specific antigen, mitogen, cytokine, chemokine, cellular ligand, or soluble factor. |
| GO:0002277 | | myeloid dendritic cell activation involved in immune response | | The change in morphology and behavior of a myeloid dendritic cell resulting from exposure to a cytokine, chemokine, cellular ligand, or soluble factor, leading to the initiation or perpetuation of an immune response. |
| GO:0001779 | | natural killer cell differentiation | | The process in which a relatively unspecialized cell acquires the specialized features of a natural killer cell. |
| GO:0001787 | | natural killer cell proliferation | | The expansion of a natural killer cell population by cell division. |
| GO:2000349 | | negative regulation of CD40 signaling pathway | | Any process that stops, prevents or reduces the frequency, rate or extent of signaling via the CD40 signaling pathway. |
| GO:0002725 | | negative regulation of T cell cytokine production | | Any process that stops, prevents, or reduces the frequency, rate, or extent of T cell cytokine production. |
| GO:1902714 | | negative regulation of interferon-gamma secretion | | Any process that stops, prevents or reduces the frequency, rate or extent of interferon-gamma secretion. |
| GO:0032695 | | negative regulation of interleukin-12 production | | Any process that stops, prevents, or reduces the frequency, rate, or extent of interleukin-12 production. |
| GO:0032715 | | negative regulation of interleukin-6 production | | Any process that stops, prevents, or reduces the frequency, rate, or extent of interleukin-6 production. |
| GO:0032720 | | negative regulation of tumor necrosis factor production | | Any process that stops, prevents, or reduces the frequency, rate, or extent of tumor necrosis factor production. |
| GO:0006909 | | phagocytosis | | An endocytosis process that results in the engulfment of external particulate material by phagocytes. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles. |
| GO:0070374 | | positive regulation of ERK1 and ERK2 cascade | | Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade. |
| GO:0046330 | | positive regulation of JNK cascade | | Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the JNK cascade. |
| GO:0042104 | | positive regulation of activated T cell proliferation | | Any process that activates or increases the rate or extent of activated T cell proliferation. |
| GO:0008284 | | positive regulation of cell proliferation | | Any process that activates or increases the rate or extent of cell proliferation. |
| GO:1902715 | | positive regulation of interferon-gamma secretion | | Any process that activates or increases the frequency, rate or extent of interferon-gamma secretion. |
| GO:0050790 | | regulation of catalytic activity | | Any process that modulates the activity of an enzyme. |
| GO:0031338 | | regulation of vesicle fusion | | Any process that modulates the frequency, rate or extent of vesicle fusion. |
| GO:0007165 | | signal transduction | | The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell. |
| GO:0046718 | | viral entry into host cell | | The process that occurs after viral attachment by which a virus, or viral nucleic acid, breaches the plasma membrane or cell envelope and enters the host cell. The process ends when the viral nucleic acid is released into the host cell cytoplasm. |
| GO:0016032 | | viral process | | A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle. |
cellular component |
| GO:0009986 | | cell surface | | The external part of the cell wall and/or plasma membrane. |
| GO:0009897 | | external side of plasma membrane | | 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. |
| GO:0070062 | | extracellular exosome | | 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. |
| GO:0005576 | | extracellular region | | 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. |
| GO:0016021 | | integral component of membrane | | The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane. |
| GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| GO:0045335 | | phagocytic vesicle | | A membrane-bounded intracellular vesicle that arises from the ingestion of particulate material by phagocytosis. |
| GO:0005886 | | plasma membrane | | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. |