Go terms map to parent GO term: GO:0002376   immune system process
GOID
Link to GO
 Functional Category Description Protein Count
link to
protein list
GO:0045087 innate immune response Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens. 48
GO:0002479 antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent 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 I protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class I molecule. Class I here refers to classical class I molecules. 42
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. 37
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. 33
GO:0050900 leukocyte migration The movement of a leukocyte within or between different tissues and organs of the body. 28
GO:0002755 MyD88-dependent toll-like receptor signaling pathway Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the MyD88 adaptor molecule mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response. 28
GO:0034134 toll-like receptor 2 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 2. 25
GO:0034142 toll-like receptor 4 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 4. 25
GO:0030099 myeloid cell differentiation The process in which a relatively unspecialized myeloid precursor cell acquires the specialized features of any cell of the myeloid leukocyte, megakaryocyte, thrombocyte, or erythrocyte lineages. 24
GO:0034130 toll-like receptor 1 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 1. 24
GO:0034138 toll-like receptor 3 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 3. 23
GO:0006955 immune response Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat. 23
GO:0035666 TRIF-dependent toll-like receptor signaling pathway Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the TRIF adaptor mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response. 21
GO:0048538 thymus development The process whose specific outcome is the progression of the thymus over time, from its formation to the mature structure. The thymus is a symmetric bi-lobed organ involved primarily in the differentiation of immature to mature T cells, with unique vascular, nervous, epithelial, and lymphoid cell components. 21
GO:0035011 melanotic encapsulation of foreign target Formation of a multilayered, melanized sheath of cells around a foreign invader. 20
GO:0035162 embryonic hemopoiesis The stages of blood cell formation that take place within the embryo. 19
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. 18
GO:0019730 antimicrobial humoral response An immune response against microbes mediated through a body fluid. Examples of this process are seen in the antimicrobial humoral response of Drosophila melanogaster and Mus musculus. 17
GO:0030218 erythrocyte differentiation The process in which a myeloid precursor cell acquires specializes features of an erythrocyte. 15
GO:0071346 cellular response to interferon-gamma Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interferon-gamma stimulus. Interferon-gamma is also known as type II interferon. 15
GO:0042110 T cell activation The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific. 15
GO:0051607 defense response to virus Reactions triggered in response to the presence of a virus that act to protect the cell or organism. 14
GO:0060218 hematopoietic stem cell differentiation The process in which a relatively unspecialized cell acquires specialized features of a hematopoietic stem cell. A stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells. 14
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. 13
GO:0071425 hematopoietic stem cell proliferation The expansion of a hematopoietic stem cell population by cell division. A hematopoietic stem cell is a stem cell from which all cells of the lymphoid and myeloid lineages develop. 13
GO:0060216 definitive hemopoiesis A second wave of blood cell production that, in vertebrates, generates long-term hemopoietic stem cells that continously provide erythroid, myeloid and lymphoid lineages throughout adulthood. 13
GO:0035099 hemocyte migration The directed movement of a hemocyte within the embryo. Hemocytes are blood cells associated with a hemocoel (the cavity containing most of the major organs of the arthropod body) which are involved in defense and clotting of hemolymph, but not involved in transport of oxygen. In Drosophila, embryonic hemocytes originate from the head mesoderm as a cluster of cells. The cluster splits into two and one group of cells crosses the amnioserosa. Both populations then spread toward the middle of the embryo and then disperse evenly throughout the embryo. 12
GO:0033077 T cell differentiation in thymus The process in which a precursor cell type acquires the specialized features of a T cell via a differentiation pathway dependent upon transit through the thymus. 12
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. 12
GO:0042267 natural killer cell mediated cytotoxicity The directed killing of a target cell by a natural killer cell through the release of granules containing cytotoxic mediators or through the engagement of death receptors. 10
GO:0006959 humoral immune response An immune response mediated through a body fluid. 10
GO:0048536 spleen development The process whose specific outcome is the progression of the spleen over time, from its formation to the mature structure. The spleen is a large vascular lymphatic organ composed of white and red pulp, involved both in hemopoietic and immune system functions. 9
GO:0048542 lymph gland development The process whose specific outcome is the progression of the lymph gland over time, from its formation to the mature structure. The lymph gland is one of the sites of hemocyte differentiation. It consists of three to six bilaterally paired lobes that are attached to the cardioblasts during larval stages, and it degenerates during pupal stages. 9
GO:0060215 primitive hemopoiesis A first transient wave of blood cell production that, in vertebrates, gives rise to erythrocytes (red blood cells) and myeloid cells. 8
GO:0002474 antigen processing and presentation of peptide antigen via MHC class I The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules. 8
GO:0002446 neutrophil mediated immunity Any process involved in the carrying out of an immune response by a neutrophil. 8
GO:0019731 antibacterial humoral response An immune response against bacteria mediated through a body fluid. Examples of this process are the antibacterial humoral responses in Mus musculus and Drosophila melanogaster. 8
GO:0002433 immune response-regulating cell surface receptor signaling pathway involved in phagocytosis An immune response-regulating cell surface receptor signaling pathway that contributes to the endocytic engulfment of external particulate material by phagocytes. 8
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. 8
GO:0002378 immunoglobulin biosynthetic process The chemical reactions and pathways resulting in the formation of immunoglobulin. 8
GO:0030225 macrophage differentiation The process in which a relatively unspecialized monocyte acquires the specialized features of a macrophage. 7
GO:0034101 erythrocyte homeostasis Any process of regulating the production and elimination of erythrocytes within an organism. 7
GO:0042113 B cell activation The change in morphology and behavior of a mature or immature B cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific. 7
GO:0002551 mast cell chemotaxis The movement of a mast cell in response to an external stimulus. 7
GO:0002385 mucosal immune response An immune response taking place in mucosal tissues, including those of the intestinal tract, nasal and upper respiratory tract, and genital tract. 7
GO:0001780 neutrophil homeostasis The process of regulating the proliferation and elimination of neutrophils such that the total number of neutrophils within a whole or part of an organism is stable over time in the absence of an outside stimulus. 7
GO:0048534 hematopoietic or lymphoid organ development The process whose specific outcome is the progression of any organ involved in hematopoiesis (also known as hemopoiesis) or lymphoid cell activation over time, from its formation to the mature structure. Such development includes differentiation of resident cell types (stromal cells) and of migratory cell types dependent on the unique microenvironment afforded by the organ for their proper differentiation. 7
GO:0007516 hemocyte development The process whose specific outcome is the progression of the hemocyte over time, from its formation to the mature structure. Hemocytes are blood cells associated with a hemocoel (the cavity containing most of the major organs of the arthropod body) which are involved in defense and clotting of hemolymph, but not involved in transport of oxygen. 6
GO:0048821 erythrocyte development The process whose specific outcome is the progression of an erythrocyte over time, from its formation to the mature structure. 6
GO:0048539 bone marrow development The process whose specific outcome is the progression of the bone marrow over time, from its formation to the mature structure. 5
GO:0002553 histamine secretion by mast cell The regulated release of histamine by a mast cell or group of mast cells. 5
GO:0034341 response to interferon-gamma 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 an interferon-gamma stimulus. Interferon-gamma is also known as type II interferon. 5
GO:0070423 nucleotide-binding oligomerization domain containing signaling pathway Any series of molecular signals generated as a consequence of binding to a nucleotide-binding oligomerization domain containing (NOD) protein. 5
GO:0030098 lymphocyte differentiation The process in which a relatively unspecialized precursor cell acquires specialized features of a lymphocyte. A lymphocyte is a leukocyte commonly found in the blood and lymph that has the characteristics of a large nucleus, a neutral staining cytoplasm, and prominent heterochromatin. 5
GO:0009817 defense response to fungus, incompatible interaction A response of an organism to a fungus that prevents the occurrence or spread of disease. 5
GO:0030220 platelet formation The process in which platelets bud from long processes extended by megakaryocytes. 5
GO:0042119 neutrophil activation The change in morphology and behavior of a neutrophil resulting from exposure to a cytokine, chemokine, cellular ligand, or soluble factor. 5
GO:0033151 V(D)J recombination The process in which immune receptor V, D, and J, or V and J gene segments, depending on the specific receptor, are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS). 5
GO:0042100 B cell proliferation The expansion of a B cell population by cell division. Follows B cell activation. 4
GO:0030593 neutrophil chemotaxis The directed movement of a neutrophil cell, the most numerous polymorphonuclear leukocyte found in the blood, in response to an external stimulus, usually an infection or wounding. 4
GO:0035854 eosinophil fate commitment The process in which the developmental fate of a cell becomes restricted such that it will develop into a eosinophil cell. A eosinophil is any of the immature or mature forms of a granular leukocyte with a nucleus that usually has two lobes connected by one or more slender threads of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and which can be stained by the dye eosin. 4
GO:0002218 activation of innate immune response Any process that initiates an innate immune response. Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens. Examples of this process include activation of the hypersensitive response of Arabidopsis thaliana and activation of any NOD or TLR signaling pathway in vertebrate species. 4
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. 4
GO:0030224 monocyte differentiation The process in which a relatively unspecialized myeloid precursor cell acquires the specialized features of a monocyte. 4
GO:0002250 adaptive immune response An immune response based on directed amplification of specific receptors for antigen produced through a somatic diversification process, and allowing for enhanced response to subsequent exposures to the same antigen (immunological memory). 4
GO:0001768 establishment of T cell polarity The directed orientation of T cell signaling molecules and associated membrane rafts towards a chemokine gradient or a contact point with antigen presenting cell. 4
GO:0035006 melanization defense response The blackening of the wounded area of the cuticle or the surface of invading pathogens, parasites or parasitoids, resulting from a proteolytic cascade leading to the de novo synthesis and deposition of melanin. 4
GO:0071674 mononuclear cell migration The movement of a mononuclear cell within or between different tissues and organs of the body. 4
GO:0035010 encapsulation of foreign target Events resulting in the formation of a multilayered cellular sheath surrounding an invader and thus preventing its development. This defense mechanism is often seen in insects in response to nematodes or parasitoids, which are too large to be phagocytosed by individual hemocytes. In some organisms the capsule is blackened due to melanization. 4
GO:0030316 osteoclast differentiation The process in which a relatively unspecialized monocyte acquires the specialized features of an osteoclast. An osteoclast is a specialized phagocytic cell associated with the absorption and removal of the mineralized matrix of bone tissue. 3
GO:0048007 antigen processing and presentation, exogenous lipid antigen via MHC class Ib The process in which an antigen-presenting cell expresses lipid antigen of exogenous origin in association with an MHC class Ib protein complex on its cell surface. Class Ib here refers to non-classical class I molecules, such as those of the CD1 family. 3
GO:0072676 lymphocyte migration The movement of a lymphocyte within or between different tissues and organs of the body. 3
GO:0009870 defense response signaling pathway, resistance gene-dependent A series of molecular signals that depends upon R-genes and is activated during defense response. 3
GO:0002252 immune effector process Any process of the immune system that can potentially contribute to an immune response. 3
GO:0010204 defense response signaling pathway, resistance gene-independent A series of molecular signals that is activated during defense response and does not depend upon R-genes. 3
GO:0072539 T-helper 17 cell differentiation The process in which a relatively unspecialized T cell acquires the specialized features of a T-helper 17 (Th17) cell. A Th17 cell is a CD4-positive, alpha-beta T cell with the phenotype RORgamma-t-positive that produces IL-17. 3
GO:0035855 megakaryocyte development The process whose specific outcome is the progression of a megakaryocyte cell over time, from its formation to the mature structure. Megakaryocyte development does not include the steps involved in committing a cell to a megakaryocyte fate. A megakaryocyte is a giant cell 50 to 100 micron in diameter, with a greatly lobulated nucleus, found in the bone marrow. 3
GO:0042386 hemocyte differentiation The process in which a relatively unspecialized cell acquires the characteristics of a mature hemocyte. Hemocytes are blood cells associated with a hemocoel (the cavity containing most of the major organs of the arthropod body) which are involved in defense and clotting of hemolymph, but not involved in transport of oxygen. 3
GO:0048291 isotype switching to IgG isotypes The switching of activated B cells from IgM biosynthesis to biosynthesis of an IgG isotype, accomplished through a recombination process involving an intrachromosomal deletion between switch regions that reside 5' of the IgM and one of the IgG constant region gene segments in the immunoglobulin heavy chain locus. 3
GO:0097028 dendritic cell differentiation The process in which a precursor cell type acquires the specialized features of a dendritic cell. A dendritic cell is a leukocyte of dendritic lineage specialized in the uptake, processing, and transport of antigens to lymph nodes for the purpose of stimulating an immune response via T cell activation. 3
GO:0002368 B cell cytokine production Any process that contributes to cytokine production by a B cell. 3
GO:0030595 leukocyte chemotaxis The movement of a leukocyte in response to an external stimulus. 3
GO:0045059 positive thymic T cell selection The process of sparing immature T cells in the thymus which react with self-MHC protein complexes with low affinity levels from apoptotic death. 3
GO:0002757 immune response-activating signal transduction The cascade of processes by which a signal interacts with a receptor, causing a change in the level or activity of a second messenger or other downstream target, and ultimately leading to activation or perpetuation of an immune response. 3
GO:0042098 T cell proliferation The expansion of a T cell population by cell division. Follows T cell activation. 3
GO:0045060 negative thymic T cell selection The process of elimination of immature T cells in the thymus which react strongly with self-antigens. 3
GO:0060217 hemangioblast cell differentiation The process in which a relatively unspecialized cell acquires the characteristics of a mature hemangioblast. Hemangioblasts are the proposed common precursor of blood and endothelial lineages. 3
GO:0060374 mast cell differentiation The process in which a relatively unspecialized myeloid precursor cell acquires the specialized features of a mast cell. A mast cell is a cell that is found in almost all tissues containing numerous basophilic granules and capable of releasing large amounts of histamine and heparin upon activation. 3
GO:0045064 T-helper 2 cell differentiation The process in which a relatively unspecialized T cell acquires specialized features of a T-helper 2 (Th2) cell. A Th2 cell is a CD4-positive, alpha-beta T cell that has the phenotype GATA-3-positive and produces interleukin-4. 3
GO:0002318 myeloid progenitor cell differentiation The process in which a precursor cell type acquires the specialized features of a myeloid progenitor cell. Myeloid progenitor cells include progenitor cells for any of the myeloid lineages. 3
GO:0035170 lymph gland crystal cell differentiation The process in which a relatively unspecialized larval lymph gland-derived hemocyte precursor cell acquires the specialized features of a crystal cell. Crystal cells are a class of cells that contain crystalline inclusions and are involved in the melanization of pathogenic material in the hemolymph. 3
GO:0043369 CD4-positive or CD8-positive, alpha-beta T cell lineage commitment The process in which an immature T cell commits to CD4-positive T cell lineage or the CD8-positive lineage of alpha-beta T cells. 3
GO:0002521 leukocyte differentiation The process in which a relatively unspecialized hemopoietic precursor cell acquires the specialized features of a leukocyte. A leukocyte is an achromatic cell of the myeloid or lymphoid lineages capable of ameboid movement, found in blood or other tissue. 3
GO:0002548 monocyte chemotaxis The movement of a monocyte in response to an external stimulus. 2
GO:0060319 primitive erythrocyte differentiation Erythrocyte differentiation which occurs as part of the process of primitive hemopoiesis. 2
GO:0001771 immunological synapse formation The formation of an area of close contact between a lymphocyte (T-, B-, or natural killer cell) and a target cell through the clustering of particular signaling and adhesion molecules and their associated membrane rafts on both the lymphocyte and target cell, which facilitates 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. 2
GO:0034154 toll-like receptor 7 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 7. 2
GO:0043029 T cell homeostasis The process of regulating the proliferation and elimination of T cells such that the total number of T cells within a whole or part of an organism is stable over time in the absence of an outside stimulus. 2
GO:0030183 B cell differentiation The process in which a precursor cell type acquires the specialized features of a B cell. A B cell is a lymphocyte of B lineage with the phenotype CD19-positive and capable of B cell mediated immunity. 2
GO:0002224 toll-like receptor signaling pathway Any series of molecular signals generated as a consequence of binding to a toll-like receptor. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response. 2
GO:0043299 leukocyte degranulation The regulated exocytosis of secretory granules by a leukocyte. 2
GO:0034146 toll-like receptor 5 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 5. 2
GO:0030223 neutrophil differentiation The process in which a myeloid precursor cell acquires the specialized features of a neutrophil. 2
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. 2
GO:0060318 definitive erythrocyte differentiation Erythrocyte differentiation which occurs as part of the process of definitive hemopoiesis. 2
GO:0001913 T cell mediated cytotoxicity The directed killing of a target cell by a T cell through the release of granules containing cytotoxic mediators or through the engagement of death receptors. 2
GO:0050851 antigen receptor-mediated signaling pathway A series of molecular signals initiated by the cross-linking of an antigen receptor on a B or T cell. 2
GO:0002480 antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-independent 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 I protein complex following intracellular transport via a pathway not requiring TAP (transporter associated with antigen processing). The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell. Class I here refers to classical class I molecules. 2
GO:0002244 hematopoietic progenitor cell differentiation The process in which precursor cell type acquires the specialized features of a hematopoietic progenitor cell, a class of cell types including myeloid progenitor cells and lymphoid progenitor cells. 2
GO:0042688 crystal cell differentiation The process in which a hemocyte precursor cell acquires the characteristics of a crystal cell, a class of cells that contain crystalline inclusions and are involved in the melanization of pathogenic material in the hemolymph. 2
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. 2
GO:0045061 thymic T cell selection The process of T cell selection that occurs in the thymus. 2
GO:0043312 neutrophil degranulation The regulated exocytosis of secretory granules containing preformed mediators such as proteases, lipases, and inflammatory mediators by a neutrophil. 2
GO:0035682 toll-like receptor 21 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 21. 2
GO:0035419 activation of MAPK activity involved in innate immune response Any process that initiates the activity of the inactive enzyme MAP kinase in the context of an innate immune response, a defense response mediated by germline encoded components that directly recognize components of potential pathogens. 2
GO:0045576 mast cell activation The change in morphology and behavior of a mast cell resulting from exposure to a cytokine, chemokine, soluble factor, or to (at least in mammals) an antigen which the mast cell has specifically bound via IgE bound to Fc-epsilonRI receptors. 2
GO:0060337 type I interferon-mediated signaling pathway A series of molecular signals initiated by the binding of a type I interferon binding to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families. 2
GO:0035172 hemocyte proliferation The multiplication or reproduction of hemocytes, resulting in the expansion of the cell population. Hemocytes are blood cells associated with a hemocoel (the cavity containing most of the major organs of the arthropod body) which are involved in defense and clotting of hemolymph, but not involved in transport of oxygen. 2
GO:0002369 T cell cytokine production Any process that contributes to cytokine production by a T cell. 2
GO:0035710 CD4-positive, alpha-beta T cell activation The change in morphology and behavior of a CD4-positive, alpha-beta T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific. 2
GO:0050901 leukocyte tethering or rolling Transient adhesive interactions between leukocytes and endothelial cells lining blood vessels. Carbohydrates on circulating leukocytes bind selectins on the vessel wall causing the leukocytes to slow down and roll along the inner surface of the vessel wall. During this rolling motion, transitory bonds are formed and broken between selectins and their ligands. Typically the first step in cellular extravasation (the movement of leukocytes out of the circulatory system, towards the site of tissue damage or infection). 2
GO:0035681 toll-like receptor 15 signaling pathway Any series of molecular signals generated as a consequence of binding to toll-like receptor 15. 2
GO:0016445 somatic diversification of immunoglobulins The somatic process that results in the generation of sequence diversity of immunoglobulins. 2
GO:0002329 pre-B cell differentiation The process in which a precursor cell type acquires the specialized features of a pre-B cell. Pre-B cells follow the pro-B cell stage of immature B cell differentiation and undergo rearrangement of heavy chain V, D, and J gene segments. 2
GO:0009862 systemic acquired resistance, salicylic acid mediated signaling pathway The series of molecular signals mediated by salicylic acid involved in systemic acquired resistance. 2
GO:0033152 immunoglobulin V(D)J recombination The process in which immunoglobulin gene segments are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS). For immunoglobulin heavy chains V, D, and J gene segments are joined, and for immunoglobulin light chains V and J gene segments are joined. 2
GO:0002481 antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent 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 Ib protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class Ib molecule. Class Ib here refers to non-classical class I molecules, such as those of the HLA-E gene family. 1
GO:0002262 myeloid cell homeostasis The process of regulating the proliferation and elimination of myeloid cells such that the total number of myeloid cells within a whole or part of an organism is stable over time in the absence of an outside stimulus. 1
GO:0043374 CD8-positive, alpha-beta T cell differentiation The process in which a relatively unspecialized T cell acquires specialized features of a mature CD8-positive, alpha-beta T cell. 1
GO:0019732 antifungal humoral response An immune response against a fungus mediated through a body fluid. An example of this process is the antifungal humoral response in Drosophila melanogaster. 1
GO:0002520 immune system development The process whose specific outcome is the progression of an organismal system whose objective is to provide calibrated responses by an organism to a potential internal or invasive threat, over time, from its formation to the mature structure. A system is a regularly interacting or interdependent group of organs or tissues that work together to carry out a given biological process. 1
GO:0001773 myeloid dendritic cell activation The change in morphology and behavior of a dendritic cell resulting from exposure to a cytokine, chemokine, cellular ligand, or soluble factor. 1
GO:0043316 cytotoxic T cell degranulation The regulated exocytosis of secretory granules containing preformed mediators such as perforin and granzymes by a cytotoxic T cell. 1
GO:0002536 respiratory burst involved in inflammatory response A phase of elevated metabolic activity, during which oxygen consumption increases following a stimulus as part of an inflammatory response; this leads to the production, by an NADH dependent system, of hydrogen peroxide (H2O2), superoxide anions and hydroxyl radicals, resulting in an increase in their intracellular or extracellular levels. 1
GO:0002572 pro-T cell differentiation The process in which a precursor cell type acquires the specialized features of a pro-T cell. Pro-T cells are the earliest stage of the T cell lineage but are not fully committed. 1
GO:0002328 pro-B cell differentiation The process in which a precursor cell type acquires the specialized features of a pro-B cell. Pro-B cells are the earliest stage of the B cell lineage and undergo heavy chain D and J gene rearrangements, although they are not fully committed. 1
GO:0002380 immunoglobulin secretion involved in immune response The regulated release of immunoglobulins from a B cell or plasma cell contributing to an immune response. 1
GO:0030219 megakaryocyte differentiation The process in which a myeloid precursor cell acquires specializes features of a megakaryocyte. 1
GO:0045321 leukocyte activation A change in morphology and behavior of a leukocyte resulting from exposure to a specific antigen, mitogen, cytokine, cellular ligand, or soluble factor. 1
GO:0035165 embryonic crystal cell differentiation The process in which an embryonic mesoderm-derived hemocyte precursor cell acquires the specialized features of a crystal cell. Crystal cells are a class of cells that contain crystalline inclusions and are involved in the melanization of pathogenic material in the hemolymph. 1
GO:0043011 myeloid dendritic cell differentiation The process in which a monocyte acquires the specialized features of a dendritic cell, an immunocompetent cell of the lymphoid and hemopoietic systems and skin. 1
GO:0019885 antigen processing and presentation of endogenous peptide antigen via MHC class I The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex. The peptide antigen is typically, but not always, processed from a whole protein. Class I here refers to classical class I molecules. 1
GO:0042381 hemolymph coagulation Any process in which factors in the hemolymph (the invertebrate equivalent of vertebrate blood and lymph) precipitate into insoluble clots in order to prevent loss of body fluid, and at the same time prevent the movement of microbes. Hemolymph coagulation is also part of the invertebrate humoral immune response. 1
GO:0030851 granulocyte differentiation The process in which a myeloid precursor cell acquires the specialized features of a granulocyte. Granulocytes are a class of leukocytes characterized by the presence of granules in their cytoplasm. These cells are active in allergic immune reactions such as arthritic inflammation and rashes. This class includes basophils, eosinophils and neutrophils. 1
GO:0016447 somatic recombination of immunoglobulin gene segments The process in which immunoglobulin genes are formed through recombination of the germline genetic elements, as known as immunoglobulin gene segments, within a single locus. 1
GO:0002502 peptide antigen assembly with MHC class I protein complex The binding of a peptide to the antigen binding groove of an MHC class I protein complex. Class I here refers to classical class I molecules. 1
GO:0035169 lymph gland plasmatocyte differentiation The process in which a relatively unspecialized larval lymph gland-derived hemocyte precursor cell acquires the specialized features of the phagocytic blood-cell type, the plasmatocyte. 1
GO:0046632 alpha-beta T cell differentiation The process in which a precursor cell type acquires the specialized features of an alpha-beta T cell. An alpha-beta T cell is a T cell that expresses an alpha-beta T cell receptor complex. 1
GO:0002227 innate immune response in mucosa Any process of the innate immune response that takes place in the mucosal tissues. 1
GO:0043366 beta selection The process in which successful recombination of a T cell receptor beta chain into a translatable protein coding sequence leads to rescue from apoptosis and subsequent proliferation of an immature T cell. 1
GO:0002573 myeloid leukocyte differentiation The process in which a relatively unspecialized myeloid precursor cell acquires the specialized features of any cell of the myeloid leukocyte lineage. 1
GO:0036035 osteoclast development The process whose specific outcome is the progression of a osteoclast from its formation to the mature structure. Cell development does not include the steps involved in committing a cell to a specific fate. An osteoclast is a specialized phagocytic cell associated with the absorption and removal of the mineralized matrix of bone tissue. 1
GO:0002320 lymphoid progenitor cell differentiation The process in which a precursor cell type acquires the specialized features of a lymphoid progenitor cell. Lymphoid progenitor cells include progenitor cells for any of the lymphoid lineages. 1
GO:0035164 embryonic plasmatocyte differentiation The process in which an embryonic mesoderm-derived hemocyte precursor cell acquires the specialized features of the phagocytic blood-cell type, the plasmatocyte. 1
GO:0001787 natural killer cell proliferation The expansion of a natural killer cell population by cell division. 1
GO:0002335 mature B cell differentiation The process in which transitional stage B cells acquire the specialized features of mature B cells in the spleen. 1
GO:0043367 CD4-positive, alpha-beta T cell differentiation The process in which a relatively unspecialized T cell acquires specialized features of a mature CD4-positive, alpha-beta T cell. 1
GO:0048246 macrophage chemotaxis The movement of a macrophage in response to an external stimulus. 1
GO:0097350 neutrophil clearance The selective elimination of senescent neutrophils from the body by autoregulatory mechanisms. 1
GO:0002507 tolerance induction A process that directly activates any of the steps required for tolerance, a physiologic state in which the immune system does not react destructively against the components of an organism that harbors it or against antigens that are introduced to it. 1
GO:0046651 lymphocyte proliferation The expansion of a lymphocyte population by cell division. 1
GO:0002407 dendritic cell chemotaxis The movement of a dendritic cell in response to an external stimulus. 1
GO:0001806 type IV hypersensitivity An inflammatory response driven by T cell recognition of processed soluble or cell-associated antigens leading to cytokine release and leukocyte activation. 1
GO:0030221 basophil differentiation The process in which a relatively unspecialized myeloid precursor cell acquires specialized features of a basophil cell. 1
GO:0002489 antigen processing and presentation of endogenous peptide antigen via MHC class Ib via ER pathway, TAP-dependent The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class Ib protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger endogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class Ib molecule. Class Ib here refers to non-classical class I molecules, such as those of the HLA-E gene family. 1
GO:0002274 myeloid leukocyte activation A change in the morphology or behavior of a myeloid leukocyte resulting from exposure to an activating factor such as a cellular or soluble ligand. 1
GO:0043320 natural killer cell degranulation The regulated exocytosis of secretory granules containing preformed mediators such as perforin and granzymes by a natural killer cell. 1
GO:0032762 mast cell cytokine production Any process that contributes to cytokine production by a mast cell. 1
GO:0002439 chronic inflammatory response to antigenic stimulus A chronic inflammatory response to an antigenic stimulus. A chronic inflammatory response persists indefinitely during days, weeks, or months in the life of an individual. 1
GO:0009868 jasmonic acid and ethylene-dependent systemic resistance, jasmonic acid mediated signaling pathway The series of molecular signals mediated by jasmonic acid involved in jasmonic acid/ethylene (ethene) dependent systemic resistance. 1
GO:0035163 embryonic hemocyte differentiation The process in which a relatively unspecialized cell derived from the embryonic head mesoderm acquires the specialized features of a mature hemocyte. Hemocytes are blood cells associated with a hemocoel (the cavity containing most of the major organs of the arthropod body) which are involved in defense and clotting of hemolymph, but not involved in transport of oxygen. 1
GO:0050798 activated T cell proliferation The expansion of a T cell population following activation by an antigenic stimulus. 1
GO:0001866 NK T cell proliferation The expansion of a NK T cell population by cell division. 1
GO:0002485 antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP-dependent ER pathway. The peptide is typically a fragment of a larger endogenous protein which has been degraded within the cell and becomes associated with the MHC class I molecule in the ER following TAP-dependent transport from the cytosol. Class I here refers to classical class I molecules. 1
GO:0043249 erythrocyte maturation A developmental process, independent of morphogenetic (shape) change, that is required for an erythrocyte to attain its fully functional state. 1
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. 1