molecular function |
| GO:0031727 | | CCR2 chemokine receptor binding | | Interacting selectively and non-covalently with a CCR2 chemokine receptor. |
| GO:0001664 | | G-protein coupled receptor binding | | Interacting selectively and non-covalently with a G-protein coupled receptor. |
| GO:0008009 | | chemokine activity | | The function of a family of small chemotactic cytokines; their name is derived from their ability to induce directed chemotaxis in nearby responsive cells. All chemokines possess a number of conserved cysteine residues involved in intramolecular disulfide bond formation. Some chemokines are considered pro-inflammatory and can be induced during an immune response to recruit cells of the immune system to a site of infection, while others are considered homeostatic and are involved in controlling the migration of cells during normal processes of tissue maintenance or development. Chemokines are found in all vertebrates, some viruses and some bacteria. |
| GO:0005125 | | cytokine activity | | Functions to control the survival, growth, differentiation and effector function of tissues and cells. |
| GO:0008201 | | heparin binding | | Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues. |
| 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:0005102 | | receptor binding | | Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function. |
biological process |
| GO:0007186 | | G-protein coupled receptor signaling pathway | | A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576). |
| GO:0007187 | | G-protein coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger | | The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand, where the pathway proceeds with activation or inhibition of a nucleotide cyclase activity and a subsequent change in the concentration of a cyclic nucleotide. |
| GO:0007259 | | JAK-STAT cascade | | Any process in which STAT proteins (Signal Transducers and Activators of Transcription) and JAK (Janus Activated Kinase) proteins convey a signal to trigger a change in the activity or state of a cell. The JAK-STAT cascade begins with activation of STAT proteins by members of the JAK family of tyrosine kinases, proceeds through dimerization and subsequent nuclear translocation of STAT proteins, and ends with regulation of target gene expression by STAT proteins. |
| GO:0000165 | | MAPK cascade | | An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell. |
| GO:0036499 | | PERK-mediated unfolded protein response | | A series of molecular signals mediated by the endoplasmic reticulum membrane stress sensor PERK (PKR-like ER kinase). Begins with activation of PERK in response to endoplasmic reticulum (ER) stress and ends with regulation of a downstream cellular process, e.g. transcription. The main substrate of PERK is the translation initiation factor eIF2alpha. Serine-phosphorylation of eIF2alpha by PERK inactivates eIF2alpha and inhibits general protein translation. In addition, eIF2alpha phosphorylation preferentially increases the translation of selective mRNAs such as ATF4 (activating transcription factor 4), which up regulates a subset of UPR genes required to restore folding capacity. |
| GO:0007568 | | aging | | A developmental process that is a deterioration and loss of function over time. Aging includes loss of functions such as resistance to disease, homeostasis, and fertility, as well as wear and tear. Aging includes cellular senescence, but is more inclusive. May precede death and may succeed developmental maturation (GO:0021700). |
| GO:0001525 | | angiogenesis | | Blood vessel formation when new vessels emerge from the proliferation of pre-existing blood vessels. |
| GO:0009887 | | animal organ morphogenesis | | Morphogenesis of an animal organ. An organ is defined as a tissue or set of tissues that work together to perform a specific function or functions. Morphogenesis is the process in which anatomical structures are generated and organized. Organs are commonly observed as visibly distinct structures, but may also exist as loosely associated clusters of cells that work together to perform a specific function or functions. |
| GO:0031100 | | animal organ regeneration | | The regrowth of a lost or destroyed animal organ. |
| GO:0043615 | | astrocyte cell migration | | The orderly movement of an astrocyte, a class of large neuroglial (macroglial) cells in the central nervous system, the largest and most numerous neuroglial cells in the brain and spinal cord. |
| 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:0007166 | | cell surface receptor signaling pathway | | A 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. |
| GO:0006874 | | cellular calcium ion homeostasis | | Any process involved in the maintenance of an internal steady state of calcium ions at the level of a cell. |
| GO:0019725 | | cellular homeostasis | | Any process involved in the maintenance of an internal steady state at the level of the cell. |
| GO:0071318 | | cellular response to ATP | | 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 ATP (adenosine 5'-triphosphate) stimulus. |
| GO:0071549 | | cellular response to dexamethasone stimulus | | 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 a dexamethasone stimulus. |
| GO:0035690 | | cellular response to drug | | 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 a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease. |
| GO:0044344 | | cellular response to fibroblast growth factor stimulus | | 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 fibroblast growth factor stimulus. |
| GO:0071403 | | cellular response to high density lipoprotein particle stimulus | | 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 a high density lipoprotein particle stimulus. |
| GO:0032869 | | cellular response to insulin stimulus | | 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 insulin stimulus. Insulin is a polypeptide hormone produced by the islets of Langerhans of the pancreas in mammals, and by the homologous organs of other organisms. |
| 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 the only member of the type II interferon found so far. |
| GO:0071347 | | cellular response to interleukin-1 | | 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 interleukin-1 stimulus. |
| GO:0071354 | | cellular response to interleukin-6 | | 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 interleukin-6 stimulus. |
| GO:0071222 | | cellular response to lipopolysaccharide | | 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 a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria. |
| GO:0071402 | | cellular response to lipoprotein particle stimulus | | 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 a lipoprotein particle stimulus. |
| GO:0036006 | | cellular response to macrophage colony-stimulating factor stimulus | | 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 a macrophage colony-stimulating factor stimulus. |
| GO:0071407 | | cellular response to organic cyclic compound | | 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 organic cyclic compound stimulus. |
| GO:0036120 | | cellular response to platelet-derived growth factor stimulus | | 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 a platelet-derived growth factor stimulus. |
| GO:0071300 | | cellular response to retinoic acid | | 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 a retinoic acid stimulus. |
| GO:0071356 | | cellular response to tumor necrosis factor | | 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 a tumor necrosis factor stimulus. |
| GO:0070098 | | chemokine-mediated signaling pathway | | A series of molecular signals initiated by the binding of a chemokine to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. |
| GO:0006935 | | chemotaxis | | The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis). |
| GO:0019221 | | cytokine-mediated signaling pathway | | A series of molecular signals initiated by the binding of a cytokine to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. |
| GO:0007010 | | cytoskeleton organization | | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures. |
| GO:0008347 | | glial cell migration | | The orderly movement of a glial cell, non-neuronal cells that provide support and nutrition, maintain homeostasis, form myelin, and participate in signal transmission in the nervous system. |
| GO:0035684 | | helper T cell extravasation | | The migration of a helper T cell from the blood vessels into the surrounding tissue. A helper T-cell is an effector T cell that provides help in the form of secreted cytokines to other immune cells. |
| GO:0006959 | | humoral immune response | | An immune response mediated through a body fluid. |
| 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:0006954 | | inflammatory response | | The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages. |
| GO:0002523 | | leukocyte migration involved in inflammatory response | | The movement of a leukocyte within or between different tissues and organs of the body contributing to an inflammatory response. |
| GO:0031663 | | lipopolysaccharide-mediated signaling pathway | | A series of molecular signals initiated by the binding of a lipopolysaccharide (LPS) to a receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription. Lipopolysaccharides are major components of the outer membrane of Gram-negative bacteria, making them prime targets for recognition by the immune system. |
| GO:0048247 | | lymphocyte chemotaxis | | The directed movement of a lymphocyte in response to an external stimulus. |
| GO:0048246 | | macrophage chemotaxis | | The movement of a macrophage in response to an external stimulus. |
| GO:0060135 | | maternal process involved in female pregnancy | | A reproductive process occurring in the mother that allows an embryo or fetus to develop within it. |
| GO:0060137 | | maternal process involved in parturition | | A reproductive process occurring in the mother that results in birth. |
| GO:0002548 | | monocyte chemotaxis | | The movement of a monocyte in response to an external stimulus. |
| GO:0016525 | | negative regulation of angiogenesis | | Any process that stops, prevents, or reduces the frequency, rate or extent of angiogenesis. |
| GO:0034351 | | negative regulation of glial cell apoptotic process | | Any process that stops, prevents, or reduces the frequency, rate, or extent of glial cell apoptotic process. |
| GO:2000502 | | negative regulation of natural killer cell chemotaxis | | Any process that stops, prevents or reduces the frequency, rate or extent of natural killer cell chemotaxis. |
| GO:0043524 | | negative regulation of neuron apoptotic process | | Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process in neurons. |
| 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. |
| 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:0043547 | | positive regulation of GTPase activity | | Any process that activates or increases the activity of a GTPase. |
| GO:0050870 | | positive regulation of T cell activation | | Any process that activates or increases the frequency, rate or extent of T cell activation. |
| GO:2000427 | | positive regulation of apoptotic cell clearance | | Any process that activates or increases the frequency, rate or extent of apoptotic cell clearance. |
| GO:0090280 | | positive regulation of calcium ion import | | Any process that increases the rate, frequency, or extent of the directed movement of calcium ions into a cell or organelle. |
| GO:0045785 | | positive regulation of cell adhesion | | Any process that activates or increases the frequency, rate or extent of cell adhesion. |
| GO:0022409 | | positive regulation of cell-cell adhesion | | Any process that activates or increases the rate or extent of cell adhesion to another cell. |
| GO:0002693 | | positive regulation of cellular extravasation | | Any process that activates or increases the frequency, rate, or extent of cellular extravasation. |
| GO:0032967 | | positive regulation of collagen biosynthetic process | | Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of collagen, any of a group of fibrous proteins of very high tensile strength that form the main component of connective tissue in animals. |
| GO:0001938 | | positive regulation of endothelial cell proliferation | | Any process that activates or increases the rate or extent of endothelial cell proliferation. |
| GO:0090265 | | positive regulation of immune complex clearance by monocytes and macrophages | | Any process that increases the rate, frequency, or extent of the process of immune complex clearance by monocytes or macrophages. |
| GO:0050729 | | positive regulation of inflammatory response | | Any process that activates or increases the frequency, rate or extent of the inflammatory response. |
| GO:0001912 | | positive regulation of leukocyte mediated cytotoxicity | | Any process that activates or increases the frequency, rate or extent of leukocyte mediated cytotoxicity. |
| GO:0002687 | | positive regulation of leukocyte migration | | Any process that activates or increases the frequency, rate, or extent of leukocyte migration. |
| GO:0010759 | | positive regulation of macrophage chemotaxis | | Any process that increases the rate, frequency or extent of macrophage chemotaxis. Macrophage chemotaxis is the movement of a macrophage in response to an external stimulus. |
| GO:0090026 | | positive regulation of monocyte chemotaxis | | Any process that increases the frequency, rate, or extent of monocyte chemotaxis. |
| GO:0051770 | | positive regulation of nitric-oxide synthase biosynthetic process | | Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of a nitric oxide synthase enzyme. |
| GO:0090314 | | positive regulation of protein targeting to membrane | | Any process that increases the frequency, rate or extent of the process of directing proteins towards a membrane, usually using signals contained within the protein. |
| GO:0050806 | | positive regulation of synaptic transmission | | Any process that activates or increases the frequency, rate or extent of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. |
| GO:0032760 | | positive regulation of tumor necrosis factor production | | Any process that activates or increases the frequency, rate, or extent of tumor necrosis factor production. |
| GO:0043491 | | protein kinase B signaling | | A series of reactions, mediated by the intracellular serine/threonine kinase protein kinase B (also called AKT), which occurs as a result of a single trigger reaction or compound. |
| GO:0006468 | | protein phosphorylation | | The process of introducing a phosphate group on to a protein. |
| GO:0008360 | | regulation of cell shape | | Any process that modulates the surface configuration of a cell. |
| GO:0010574 | | regulation of vascular endothelial growth factor production | | Any process that modulates the frequency, rate, or extent of production of vascular endothelial growth factor. |
| GO:0014823 | | response to activity | | 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 activity stimulus. |
| GO:0043200 | | response to amino acid | | 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 amino acid stimulus. An amino acid is a carboxylic acids containing one or more amino groups. |
| GO:0046677 | | response to antibiotic | | 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 antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms. |
| GO:0009617 | | response to bacterium | | 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 stimulus from a bacterium. |
| 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:0045471 | | response to ethanol | | 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 ethanol stimulus. |
| GO:0010332 | | response to gamma radiation | | 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 gamma radiation stimulus. Gamma radiation is a form of electromagnetic radiation (EMR) or light emission of a specific frequency produced from sub-atomic particle interaction, such as electron-positron annihilation and radioactive decay. Gamma rays are generally characterized as EMR having the highest frequency and energy, and also the shortest wavelength, within the electromagnetic radiation spectrum. |
| GO:0051384 | | response to glucocorticoid | | 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 glucocorticoid stimulus. Glucocorticoids are hormonal C21 corticosteroids synthesized from cholesterol with the ability to bind with the cortisol receptor and trigger similar effects. Glucocorticoids act primarily on carbohydrate and protein metabolism, and have anti-inflammatory effects. |
| GO:0009408 | | response to heat | | 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 heat stimulus, a temperature stimulus above the optimal temperature for that organism. |
| GO:0001666 | | response to hypoxia | | 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 stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level. |
| GO:0032496 | | response to lipopolysaccharide | | Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria. |
| GO:0009612 | | response to mechanical stimulus | | 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 mechanical stimulus. |
| GO:0032570 | | response to progesterone | | 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 progesterone stimulus. |
| GO:0033552 | | response to vitamin B3 | | 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 vitamin B3 stimulus. |
| GO:0009611 | | response to wounding | | 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 stimulus indicating damage to the organism. |
| 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:0007179 | | transforming growth factor beta receptor signaling pathway | | A series of molecular signals initiated by the binding of an extracellular ligand to a transforming growth factor beta receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription. |
| GO:0048010 | | vascular endothelial growth factor receptor signaling pathway | | Any series of molecular signals initiated by the binding of an extracellular ligand to a vascular endothelial growth factor receptor (VEGFR) located on the surface of the receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. |
| GO:0019079 | | viral genome replication | | Any process involved directly in viral genome replication, including viral nucleotide metabolism. |
cellular component |
| GO:0044299 | | C-fiber | | The axon of a dorsal root ganglion cell that are responsive to pain and temperature. C-fibers are small in diameter (0.2-1.5 um) and unmyelinated. |
| GO:0043679 | | axon terminus | | Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal button is a specialized region of it. |
| GO:0005737 | | cytoplasm | | All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| GO:0030425 | | dendrite | | A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body. |
| GO:0030139 | | endocytic vesicle | | A membrane-bounded intracellular vesicle formed by invagination of the plasma membrane around an extracellular substance. Endocytic vesicles fuse with early endosomes to deliver the cargo for further sorting. |
| 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:0005615 | | extracellular space | | That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid. |
| GO:0043025 | | neuronal cell body | | The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites. |
| GO:0043204 | | perikaryon | | The portion of the cell soma (neuronal cell body) that excludes the nucleus. |
| GO:0048471 | | perinuclear region of cytoplasm | | Cytoplasm situated near, or occurring around, the nucleus. |
| GO:0005791 | | rough endoplasmic reticulum | | The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae. |
| GO:0045202 | | synapse | | The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane. |