molecular function |
| GO:0032395 | | MHC class II receptor activity | | Combining with an MHC class II protein complex and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity. |
| GO:0042605 | | peptide antigen binding | | Interacting selectively and non-covalently with an antigen peptide. |
| 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). |
biological process |
| GO:0031295 | | T cell costimulation | | The process of providing, via surface-bound receptor-ligand pairs, a second, antigen-independent, signal in addition to that provided by the T cell receptor to augment T cell activation. |
| GO:0050852 | | T cell receptor signaling pathway | | A series of molecular signals initiated by the cross-linking of an antigen receptor on a T cell. |
| GO:0042088 | | T-helper 1 type immune response | | An immune response which is associated with resistance to intracellular bacteria, fungi, and protozoa, and pathological conditions such as arthritis, and which is typically orchestrated by the production of particular cytokines by T-helper 1 cells, most notably interferon-gamma, IL-2, and lymphotoxin. |
| GO:0019882 | | antigen processing and presentation | | The process in which an antigen-presenting cell expresses antigen (peptide or lipid) on its cell surface in association with an MHC protein complex. |
| GO:0019886 | | antigen processing and presentation of exogenous peptide antigen via MHC class II | | The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class II protein complex. The peptide antigen is typically, but not always, processed from a whole protein. |
| GO:0002504 | | antigen processing and presentation of peptide or polysaccharide antigen via MHC class II | | The process in which an antigen-presenting cell expresses antigen (peptide or polysaccharide) on its cell surface in association with an MHC class II protein complex. |
| GO:0016045 | | detection of bacterium | | The series of events in which a stimulus from a bacterium is received and converted into a molecular signal. |
| GO:0002455 | | humoral immune response mediated by circulating immunoglobulin | | An immune response dependent upon secreted immunoglobulin. An example of this process is found in Mus musculus. |
| GO:0006955 | | immune response | | Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat. |
| 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:0002381 | | immunoglobulin production involved in immunoglobulin mediated immune response | | The appearance of immunoglobulin due to biosynthesis or secretion following a cellular stimulus during an immune response, resulting in an increase in its intracellular or extracellular levels. |
| GO:0002437 | | inflammatory response to antigenic stimulus | | An inflammatory response to an antigenic stimulus, which can be include any number of T cell or B cell epitopes. |
| GO:0060333 | | interferon-gamma-mediated signaling pathway | | A series of molecular signals initiated by the binding of interferon-gamma to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Interferon gamma is the only member of the type II interferon found so far. |
| GO:0042130 | | negative regulation of T cell proliferation | | Any process that stops, prevents or reduces the rate or extent of T cell proliferation. |
| GO:0002862 | | negative regulation of inflammatory response to antigenic stimulus | | Any process that stops, prevents, or reduces the frequency, rate, or extent of an inflammatory response to an antigenic stimulus. |
| GO:0032689 | | negative regulation of interferon-gamma production | | Any process that stops, prevents, or reduces the frequency, rate, or extent of interferon-gamma production. Interferon-gamma is also known as type II interferon. |
| GO:0002503 | | peptide antigen assembly with MHC class II protein complex | | The binding of a peptide to the antigen binding groove of an MHC class II protein complex. |
| GO:0035774 | | positive regulation of insulin secretion involved in cellular response to glucose stimulus | | Any process that increases the frequency, rate or extent of the regulated release of insulin that contributes to the response of a cell to glucose. |
| GO:0051262 | | protein tetramerization | | The formation of a protein tetramer, a macromolecular structure consisting of four noncovalently associated identical or nonidentical subunits. |
| GO:2001179 | | regulation of interleukin-10 secretion | | Any process that modulates the frequency, rate or extent of interleukin-10 secretion. |
| GO:0032673 | | regulation of interleukin-4 production | | Any process that modulates the frequency, rate, or extent of interleukin-4 production. |
| 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. |
cellular component |
| GO:0012507 | | ER to Golgi transport vesicle membrane | | The lipid bilayer surrounding a vesicle transporting substances from the endoplasmic reticulum to the Golgi. |
| GO:0005794 | | Golgi apparatus | | A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions. |
| GO:0000139 | | Golgi membrane | | The lipid bilayer surrounding any of the compartments of the Golgi apparatus. |
| GO:0042613 | | MHC class II protein complex | | A transmembrane protein complex composed of an MHC class II alpha and MHC class II beta chain, and with or without a bound peptide or polysaccharide antigen. |
| GO:0030669 | | clathrin-coated endocytic vesicle membrane | | The lipid bilayer surrounding a clathrin-coated endocytic vesicle. |
| GO:0030666 | | endocytic vesicle membrane | | The lipid bilayer surrounding an endocytic vesicle. |
| GO:0005783 | | endoplasmic reticulum | | The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached). |
| GO:0005789 | | endoplasmic reticulum membrane | | The lipid bilayer surrounding the endoplasmic reticulum. |
| GO:0005768 | | endosome | | A vacuole to which materials ingested by endocytosis are delivered. |
| GO:0010008 | | endosome membrane | | The lipid bilayer surrounding an endosome. |
| 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:0071556 | | integral component of lumenal side of endoplasmic reticulum membrane | | The component of the endoplasmic reticulum membrane consisting of the gene products that penetrate only the lumenal side of the membrane. |
| 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:0005887 | | integral component of plasma membrane | | The component of the plasma 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:0031902 | | late endosome membrane | | The lipid bilayer surrounding a late endosome. |
| GO:0005765 | | lysosomal membrane | | The lipid bilayer surrounding the lysosome and separating its contents from the cell cytoplasm. |
| GO:0005764 | | lysosome | | A small lytic vacuole that has cell cycle-independent morphology and is found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions. |
| GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| 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. |
| GO:0032588 | | trans-Golgi network membrane | | The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network. |
| GO:0030658 | | transport vesicle membrane | | The lipid bilayer surrounding a transport vesicle. |