molecular function |
| GO:0005524 | | ATP binding | | Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. |
| GO:0051117 | | ATPase binding | | Interacting selectively and non-covalently with an ATPase, any enzyme that catalyzes the hydrolysis of ATP. |
| GO:0042609 | | CD4 receptor binding | | Interacting selectively and non-covalently with a CD4, a receptor found on the surface of T cells, monocytes and macrophages. |
| GO:0042610 | | CD8 receptor binding | | Interacting selectively and non-covalently with a CD8, a receptor found on the surface of thymocytes and cytotoxic and suppressor T-lymphocytes. |
| GO:0042169 | | SH2 domain binding | | Interacting selectively and non-covalently with a SH2 domain (Src homology 2) of a protein, a protein domain of about 100 amino-acid residues and belonging to the alpha + beta domain class. |
| GO:0042802 | | identical protein binding | | Interacting selectively and non-covalently with an identical protein or proteins. |
| GO:0016301 | | kinase activity | | Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule. |
| GO:0004715 | | non-membrane spanning protein tyrosine kinase activity | | Catalysis of the reaction: ATP + protein L-tyrosine = ADP + protein L-tyrosine phosphate by a non-membrane spanning protein. |
| GO:0000166 | | nucleotide binding | | Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose. |
| GO:0043548 | | phosphatidylinositol 3-kinase binding | | Interacting selectively and non-covalently with a phosphatidylinositol 3-kinase, any enzyme that catalyzes the addition of a phosphate group to an inositol lipid at the 3' position of the inositol ring. |
| GO:0046934 | | phosphatidylinositol-4,5-bisphosphate 3-kinase activity | | Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + ATP = a 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate + ADP + 2 H(+). |
| GO:0008022 | | protein C-terminus binding | | Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxy function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue. |
| 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:0004672 | | protein kinase activity | | Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP. |
| GO:0019901 | | protein kinase binding | | Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate. |
| GO:0019903 | | protein phosphatase binding | | Interacting selectively and non-covalently with any protein phosphatase. |
| GO:0004722 | | protein serine/threonine phosphatase activity | | Catalysis of the reaction: protein serine phosphate + H2O = protein serine + phosphate, and protein threonine phosphate + H2O = protein threonine + phosphate. |
| GO:0004713 | | protein tyrosine kinase activity | | Catalysis of the reaction: ATP + a protein tyrosine = ADP + protein tyrosine phosphate. |
| GO:0016740 | | transferase activity | | Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2. |
biological process |
| GO:0050853 | | B cell receptor signaling pathway | | A series of molecular signals initiated by the cross-linking of an antigen receptor on a B cell. |
| 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:0030217 | | T cell differentiation | | The process in which a precursor cell type acquires characteristics of a more mature T-cell. A T cell is a type of lymphocyte whose definin characteristic is the expression of a T cell receptor complex. |
| 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:0006919 | | activation of cysteine-type endopeptidase activity involved in apoptotic process | | Any process that initiates the activity of the inactive enzyme cysteine-type endopeptidase in the context of an apoptotic process. |
| GO:0006882 | | cellular zinc ion homeostasis | | Any process involved in the maintenance of an internal steady state of zinc ions at the level of a cell. |
| GO:0030097 | | hemopoiesis | | The process whose specific outcome is the progression of the myeloid and lymphoid derived organ/tissue systems of the blood and other parts of the body over time, from formation to the mature structure. The site of hemopoiesis is variable during development, but occurs primarily in bone marrow or kidney in many adult vertebrates. |
| GO:0045087 | | innate immune response | | Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens. |
| GO:0050900 | | leukocyte migration | | The movement of a leukocyte within or between different tissues and organs of the body. |
| GO:0038083 | | peptidyl-tyrosine autophosphorylation | | The phosphorylation by a protein of one or more of its own tyrosine amino acid residues, or a tyrosine residue on an identical protein. |
| GO:0046854 | | phosphatidylinositol phosphorylation | | The process of introducing one or more phosphate groups into a phosphatidylinositol, any glycerophosphoinositol having one phosphatidyl group esterified to one of the hydroxy groups of inositol. |
| GO:0048015 | | phosphatidylinositol-mediated signaling | | A series of molecular signals in which a cell uses a phosphatidylinositol-mediated signaling to convert a signal into a response. Phosphatidylinositols include phosphatidylinositol (PtdIns) and its phosphorylated derivatives. |
| GO:0016310 | | phosphorylation | | The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide. |
| GO:0030168 | | platelet activation | | A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug. |
| GO:0050870 | | positive regulation of T cell activation | | Any process that activates or increases the frequency, rate or extent of T cell activation. |
| GO:0050862 | | positive regulation of T cell receptor signaling pathway | | Any process that activates or increases the frequency, rate or extent of signaling pathways initiated by the cross-linking of an antigen receptor on a T cell. |
| GO:2001244 | | positive regulation of intrinsic apoptotic signaling pathway | | Any process that activates or increases the frequency, rate or extent of intrinsic apoptotic signaling pathway. |
| GO:0006470 | | protein dephosphorylation | | The process of removing one or more phosphoric residues from a protein. |
| GO:0006468 | | protein phosphorylation | | The process of introducing a phosphate group on to a protein. |
| GO:0042127 | | regulation of cell proliferation | | Any process that modulates the frequency, rate or extent of cell proliferation. |
| GO:0050690 | | regulation of defense response to virus by virus | | Any viral process that modulates the frequency, rate, or extent of the antiviral response of the host cell or organism. |
| GO:0051249 | | regulation of lymphocyte activation | | Any process that modulates the frequency, rate or extent of lymphocyte activation. |
| GO:0014066 | | regulation of phosphatidylinositol 3-kinase signaling | | Any process that modulates the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade. |
| GO:0051209 | | release of sequestered calcium ion into cytosol | | The process in which calcium ions sequestered in the endoplasmic reticulum, Golgi apparatus or mitochondria are released into the cytosolic compartment. |
| GO:0042493 | | response to drug | | Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease. |
| GO:0007169 | | transmembrane receptor protein tyrosine kinase signaling pathway | | A series of molecular signals initiated by the binding of an extracellular ligand to a receptor on the surface of the target cell where the receptor possesses tyrosine kinase activity, and ending with regulation of a downstream cellular process, e.g. transcription. |
| 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:0005737 | | cytoplasm | | All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| GO:0005829 | | cytosol | | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| 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:0031234 | | extrinsic component of cytoplasmic side of plasma membrane | | The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region. |
| GO:0001772 | | immunological synapse | | An area of close contact between a lymphocyte (T-, B-, or natural killer cell) and a target cell formed through the clustering of particular signaling and adhesion molecules and their associated membrane rafts on both the lymphocyte and the target cell and facilitating activation of the lymphocyte, transfer of membrane from the target cell to the lymphocyte, and in some situations killing of the target cell through release of secretory granules and/or death-pathway ligand-receptor interaction. |
| GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| GO:0045121 | | membrane raft | | Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions. |
| GO:0000242 | | pericentriolar material | | A network of small fibers that surrounds the centrioles in cells; contains the microtubule nucleating activity of the centrosome. |
| 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. |