| molecular function |
|---|
| | GO:0019960 | | C-X3-C chemokine binding | | Interacting selectively and non-covalently with a C-X3-C chemokine; C-X3-C chemokines have three amino acids between the first two cysteines of the characteristic four-cysteine motif. |
| | GO:0003779 | | actin binding | | Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments. |
| | GO:0051393 | | alpha-actinin binding | | Interacting selectively and non-covalently with alpha-actinin, one of a family of proteins that cross-link F-actin as antiparallel homodimers. Alpha-actinin has a molecular mass of 93-103 KDa; at the N-terminus there are two calponin homology domains, at the C-terminus there are two EF-hands. These two domains are connected by the rod domain. This domain is formed by triple-helical spectrin repeats. |
| | GO:0050839 | | cell adhesion molecule binding | | Interacting selectively and non-covalently with a cell adhesion molecule. |
| | GO:0005518 | | collagen binding | | Interacting selectively and non-covalently with collagen, a group of fibrous proteins of very high tensile strength that form the main component of connective tissue in animals. Collagen is highly enriched in glycine (some regions are 33% glycine) and proline, occurring predominantly as 3-hydroxyproline (about 20%). |
| | GO:0098639 | | collagen binding involved in cell-matrix adhesion | | Any collagen binding that occurs as part of cell-matrix adhesion. |
| | GO:0015026 | | coreceptor activity | | Combining with an extracellular or intracellular messenger, and in cooperation with a nearby primary receptor, initiating a change in cell activity. |
| | GO:0001968 | | fibronectin binding | | Interacting selectively and non-covalently with a fibronectin, a group of related adhesive glycoproteins of high molecular weight found on the surface of animal cells, connective tissue matrices, and in extracellular fluids. |
| | GO:0005178 | | integrin binding | | Interacting selectively and non-covalently with an integrin. |
| | GO:0019900 | | kinase binding | | Interacting selectively and non-covalently with a kinase, any enzyme that catalyzes the transfer of a phosphate group. |
| | GO:0043236 | | laminin binding | | Interacting selectively and non-covalently with laminins, glycoproteins that are major constituents of the basement membrane of cells. |
| | GO:0046872 | | metal ion binding | | Interacting selectively and non-covalently with any metal ion. |
| | GO:0042277 | | peptide binding | | Interacting selectively and non-covalently with peptides, any of a group of organic compounds comprising two or more amino acids linked by peptide bonds. |
| | GO:0002020 | | protease binding | | Interacting selectively and non-covalently with any protease or peptidase. |
| | 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:0032403 | | protein complex binding | | Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| | GO:0019904 | | protein domain specific binding | | Interacting selectively and non-covalently with a specific domain of a protein. |
| | GO:0046982 | | protein heterodimerization activity | | Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer. |
| | 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:0004872 | | receptor activity | | Combining with an extracellular or intracellular messenger to initiate a change in cell activity. |
| | 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. |
| | GO:0001618 | | virus receptor activity | | Combining with a virus component and mediating entry of the virus into the cell. |
| biological process |
|---|
| | 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. |
| | GO:0000082 | | G1/S transition of mitotic cell cycle | | The mitotic cell cycle transition by which a cell in G1 commits to S phase. The process begins with the build up of G1 cyclin-dependent kinase (G1 CDK), resulting in the activation of transcription of G1 cyclins. The process ends with the positive feedback of the G1 cyclins on the G1 CDK which commits the cell to S phase, in which DNA replication is initiated. |
| | GO:0048675 | | axon extension | | Long distance growth of a single axon process involved in cellular development. |
| | GO:0070830 | | bicellular tight junction assembly | | The aggregation, arrangement and bonding together of a set of components to form a tight junction, an occluding cell-cell junction that is composed of a branching network of sealing strands that completely encircles the apical end of each cell in an epithelial sheet. |
| | GO:0007161 | | calcium-independent cell-matrix adhesion | | The binding of a cell to the extracellular matrix via adhesion molecules that do not require the presence of calcium for the interaction. |
| | GO:0055007 | | cardiac muscle cell differentiation | | The process in which a cardiac muscle precursor cell acquires specialized features of a cardiac muscle cell. Cardiac muscle cells are striated muscle cells that are responsible for heart contraction. |
| | GO:0048738 | | cardiac muscle tissue development | | The process whose specific outcome is the progression of cardiac muscle over time, from its formation to the mature structure. |
| | 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:0001708 | | cell fate specification | | The process involved in the specification of cell identity. Once specification has taken place, a cell will be committed to differentiate down a specific pathway if left in its normal environment. |
| | GO:0016477 | | cell migration | | The controlled self-propelled movement of a cell from one site to a destination guided by molecular cues. Cell migration is a central process in the development and maintenance of multicellular organisms. |
| | GO:0002042 | | cell migration involved in sprouting angiogenesis | | The orderly movement of endothelial cells into the extracellular matrix in order to form new blood vessels involved in sprouting angiogenesis. |
| | GO:0033631 | | cell-cell adhesion mediated by integrin | | The attachment of one cell to another cell via an integrin, a heterodimeric adhesion receptor formed by the non-covalent association of particular alpha and beta subunits. |
| | GO:0007160 | | cell-matrix adhesion | | The binding of a cell to the extracellular matrix via adhesion molecules. |
| | GO:0031589 | | cell-substrate adhesion | | The attachment of a cell to the underlying substrate via adhesion molecules. |
| | 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:0006968 | | cellular defense response | | A defense response that is mediated by cells. |
| | GO:0071479 | | cellular response to ionizing radiation | | 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 ionizing radiation stimulus. Ionizing radiation is radiation with sufficient energy to remove electrons from atoms and may arise from spontaneous decay of unstable isotopes, resulting in alpha and beta particles and gamma rays. Ionizing radiation also includes X-rays. |
| | GO:0071404 | | cellular response to low-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 low-density lipoprotein particle stimulus. |
| | GO:0071260 | | cellular response to mechanical 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 mechanical stimulus. |
| | GO:0071305 | | cellular response to vitamin D | | 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 vitamin D stimulus. |
| | GO:0048813 | | dendrite morphogenesis | | The process in which the anatomical structures of a dendrite are generated and organized. A dendrite is a freely branching protoplasmic process of a nerve cell. |
| | GO:0030198 | | extracellular matrix organization | | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of an extracellular matrix. |
| | GO:0021943 | | formation of radial glial scaffolds | | The formation of scaffolds from a radial glial cell. The scaffolds are used as a substrate for the radial migration of cells. |
| | GO:0008354 | | germ cell migration | | The orderly movement of a cell specialized to produce haploid gametes through the embryo from its site of production to the place where the gonads will form. |
| | GO:0034113 | | heterotypic cell-cell adhesion | | The attachment of a cell to a cell of a different type via adhesion molecules. |
| | GO:0007156 | | homophilic cell adhesion via plasma membrane adhesion molecules | | The attachment of a plasma membrane adhesion molecule in one cell to an identical molecule in an adjacent cell. |
| | GO:0001701 | | in utero embryonic development | | The process whose specific outcome is the progression of the embryo in the uterus over time, from formation of the zygote in the oviduct, to birth. An example of this process is found in Mus musculus. |
| | GO:0007229 | | integrin-mediated signaling pathway | | A series of molecular signals initiated by the binding of extracellular ligand to an integrin on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription. |
| | GO:0007159 | | leukocyte cell-cell adhesion | | The attachment of a leukocyte to another cell via adhesion molecules. |
| | GO:0050900 | | leukocyte migration | | The movement of a leukocyte within or between different tissues and organs of the body. |
| | 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). |
| | 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:0048333 | | mesodermal cell differentiation | | The process in which a relatively unspecialized cell acquires the specialized features of a mesoderm cell. |
| | GO:0035024 | | negative regulation of Rho protein signal transduction | | Any process that stops, prevents, or reduces the frequency, rate or extent of Rho protein signal transduction. |
| | GO:2000811 | | negative regulation of anoikis | | Any process that stops, prevents or reduces the frequency, rate or extent of anoikis. |
| | GO:0045596 | | negative regulation of cell differentiation | | Any process that stops, prevents, or reduces the frequency, rate or extent of cell differentiation. |
| | GO:0031345 | | negative regulation of cell projection organization | | Any process that stops, prevents, or reduces the frequency, rate or extent of a process involved in the formation, arrangement of constituent parts, or disassembly of cell projections. |
| | GO:0008285 | | negative regulation of cell proliferation | | Any process that stops, prevents or reduces the rate or extent of cell proliferation. |
| | GO:0045665 | | negative regulation of neuron differentiation | | Any process that stops, prevents, or reduces the frequency, rate or extent of neuron differentiation. |
| | GO:0031175 | | neuron projection development | | The process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites). |
| | GO:0043547 | | positive regulation of GTPase activity | | Any process that activates or increases the activity of a GTPase. |
| | GO:0043410 | | positive regulation of MAPK cascade | | Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the MAPK cascade. |
| | GO:0043065 | | positive regulation of apoptotic process | | Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process. |
| | GO:0030335 | | positive regulation of cell migration | | Any process that activates or increases the frequency, rate or extent of cell migration. |
| | GO:0008284 | | positive regulation of cell proliferation | | Any process that activates or increases the rate or extent of cell proliferation. |
| | GO:0010811 | | positive regulation of cell-substrate adhesion | | Any process that increases the frequency, rate or extent of cell-substrate adhesion. Cell-substrate adhesion is the attachment of a cell to the underlying substrate via adhesion molecules. |
| | GO:0045807 | | positive regulation of endocytosis | | Any process that activates or increases the frequency, rate or extent of endocytosis. |
| | GO:0090004 | | positive regulation of establishment of protein localization to plasma membrane | | Any process that increases the frequency, rate or extent of the directed movement of a protein to a specific location in the plasma membrane. |
| | GO:0045666 | | positive regulation of neuron differentiation | | Any process that activates or increases the frequency, rate or extent of neuron differentiation. |
| | GO:0010976 | | positive regulation of neuron projection development | | Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites). |
| | GO:0050731 | | positive regulation of peptidyl-tyrosine phosphorylation | | Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine. |
| | GO:0032594 | | protein transport within lipid bilayer | | The directed movement of a protein from one location to another within a lipid bilayer. |
| | GO:0031623 | | receptor internalization | | A receptor-mediated endocytosis process that results in the movement of receptors from the plasma membrane to the inside of the cell. The process begins when cell surface receptors are monoubiquitinated following ligand-induced activation. Receptors are subsequently taken up into endocytic vesicles from where they are either targeted to the lysosome or vacuole for degradation or recycled back to the plasma membrane. |
| | GO:0008277 | | regulation of G-protein coupled receptor protein signaling pathway | | Any process that modulates the frequency, rate or extent of G-protein coupled receptor protein signaling pathway activity. |
| | GO:0051726 | | regulation of cell cycle | | Any process that modulates the rate or extent of progression through the cell cycle. |
| | GO:0010710 | | regulation of collagen catabolic process | | Any process that modulates the rate, frequency or extent of collagen catabolism. Collagen catabolism is the proteolytic chemical reactions and pathways resulting in the breakdown of collagen in the extracellular matrix. |
| | GO:0050776 | | regulation of immune response | | Any process that modulates the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus. |
| | 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: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:0034698 | | response to gonadotropin | | 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 gonadotropin stimulus. |
| | GO:0031667 | | response to nutrient levels | | 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 reflecting the presence, absence, or concentration of nutrients. |
| | GO:0071559 | | response to transforming growth factor beta | | 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 transforming growth factor beta stimulus. |
| | GO:0045214 | | sarcomere organization | | The myofibril assembly process that results in the organization of muscle actomyosin into sarcomeres. The sarcomere is the repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs. |
| | GO:0043149 | | stress fiber assembly | | The aggregation, arrangement and bonding together of a set of components to form a stress fiber. A stress fiber is a contractile actin filament bundle that consists of short actin filaments with alternating polarity. |
| | GO:0001894 | | tissue homeostasis | | A homeostatic process involved in the maintenance of an internal steady state within a defined tissue of an organism, including control of cellular proliferation and death and control of metabolic function. |
| | 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:0046718 | | viral entry into host cell | | The process that occurs after viral attachment by which a virus, or viral nucleic acid, breaches the plasma membrane or cell envelope and enters the host cell. The process ends when the viral nucleic acid is released into the host cell cytoplasm. |
| | GO:0016032 | | viral process | | A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle. |
| | GO:0008542 | | visual learning | | Any process in an organism in which a change in behavior of an individual occurs in response to repeated exposure to a visual cue. |
| cellular component |
|---|
| | GO:0001669 | | acrosomal vesicle | | A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome. |
| | GO:0005912 | | adherens junction | | A cell junction at which anchoring proteins (cadherins or integrins) extend through the plasma membrane and are attached to actin filaments. |
| | GO:0005604 | | basement membrane | | A thin layer of dense material found in various animal tissues interposed between the cells and the adjacent connective tissue. It consists of the basal lamina plus an associated layer of reticulin fibers. |
| | GO:0030054 | | cell junction | | A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix. |
| | GO:0042995 | | cell projection | | A prolongation or process extending from a cell, e.g. a flagellum or axon. |
| | GO:0009986 | | cell surface | | The external part of the cell wall and/or plasma membrane. |
| | GO:0005911 | | cell-cell junction | | A cell junction that forms a connection between two or more cells in a multicellular organism; excludes direct cytoplasmic junctions such as ring canals. |
| | GO:0032154 | | cleavage furrow | | The cleavage furrow is a plasma membrane invagination at the cell division site. The cleavage furrow begins as a shallow groove and eventually deepens to divide the cytoplasm. |
| | GO:0005737 | | cytoplasm | | All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| | GO:0031410 | | cytoplasmic vesicle | | A vesicle found in the cytoplasm of a cell. |
| | GO:0043197 | | dendritic spine | | A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including "thin", "stubby", "mushroom", and "branched", with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity. |
| | GO:0005768 | | endosome | | A vacuole to which materials ingested by endocytosis are delivered. |
| | GO:0009897 | | external side of plasma membrane | | The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface. |
| | GO:0070062 | | extracellular exosome | | A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm. |
| | GO:0030175 | | filopodium | | Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft. |
| | GO:0005925 | | focal adhesion | | Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments. |
| | GO:0030056 | | hemidesmosome | | A cell-substrate junction (attachment structure) found in epithelial cells that links intermediate filaments to extracellular matrices via transmembrane complexes. In vertebrates, hemidesmosomes mediate contact between the basal side of epithelial cells and the basal lamina. In C. elegans, hemidesmosomes connect epithelial cells to distinct extracellular matrices on both the apical and basal cell surfaces. |
| | 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:0034665 | | integrin alpha1-beta1 complex | | An integrin complex that comprises one alpha1 subunit and one beta1 subunit. |
| | GO:0034680 | | integrin alpha10-beta1 complex | | An integrin complex that comprises one alpha10 subunit and one beta1 subunit. |
| | GO:0034681 | | integrin alpha11-beta1 complex | | An integrin complex that comprises one alpha11 subunit and one beta1 subunit. |
| | GO:0034666 | | integrin alpha2-beta1 complex | | An integrin complex that comprises one alpha2 subunit and one beta1 subunit. |
| | GO:0034667 | | integrin alpha3-beta1 complex | | An integrin complex that comprises one alpha3 subunit and one beta1 subunit. |
| | GO:0034677 | | integrin alpha7-beta1 complex | | An integrin complex that comprises one alpha7 subunit and one beta1 subunit. |
| | GO:0034678 | | integrin alpha8-beta1 complex | | An integrin complex that comprises one alpha8 subunit and one beta1 subunit. |
| | GO:0034679 | | integrin alpha9-beta1 complex | | An integrin complex that comprises one alpha9 subunit and one beta1 subunit. |
| | GO:0008305 | | integrin complex | | A protein complex that is composed of one alpha subunit and one beta subunit, both of which are members of the integrin superfamily of cell adhesion receptors; the complex spans the plasma membrane and binds to extracellular matrix ligands, cell-surface ligands, and soluble ligands. |
| | GO:0014704 | | intercalated disc | | A complex cell-cell junction at which myofibrils terminate in cardiomyocytes; mediates mechanical and electrochemical integration between individual cardiomyocytes. The intercalated disc contains regions of tight mechanical attachment (fasciae adherentes and desmosomes) and electrical coupling (gap junctions) between adjacent cells. |
| | GO:0071438 | | invadopodium membrane | | The portion of the plasma membrane surrounding an invadopodium. |
| | GO:0030027 | | lamellipodium | | A thin sheetlike process extended by the leading edge of a migrating cell or extending cell process; contains a dense meshwork of actin filaments. |
| | GO:0042470 | | melanosome | | A tissue-specific, membrane-bounded cytoplasmic organelle within which melanin pigments are synthesized and stored. Melanosomes are synthesized in melanocyte cells. |
| | 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:0035748 | | myelin sheath abaxonal region | | The region of the myelin sheath furthest from the axon. |
| | GO:0031594 | | neuromuscular junction | | The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential. |
| | GO:0048471 | | perinuclear region of cytoplasm | | Cytoplasm situated near, or occurring around, the nucleus. |
| | 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:0043235 | | receptor complex | | Any protein complex that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function. |
| | GO:0055037 | | recycling endosome | | An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane. |
| | GO:0001726 | | ruffle | | Projection at the leading edge of a crawling cell; the protrusions are supported by a microfilament meshwork. |
| | GO:0032587 | | ruffle membrane | | The portion of the plasma membrane surrounding a ruffle. |
| | GO:0042383 | | sarcolemma | | The outer membrane of a muscle cell, consisting of the plasma membrane, a covering basement membrane (about 100 nm thick and sometimes common to more than one fiber), and the associated loose network of collagen fibers. |
| | 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. |
| | GO:0097060 | | synaptic membrane | | A specialized area of membrane on either the presynaptic or the postsynaptic side of a synapse, the junction between a nerve fiber of one neuron and another neuron or muscle fiber or glial cell. |
Description
