molecular function |
| GO:0008289 | | lipid binding | | Interacting selectively and non-covalently with a lipid. |
| 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:0001618 | | virus receptor activity | | Combining with a virus component and mediating entry of the virus into the cell. |
biological process |
| GO:0035743 | | CD4-positive, alpha-beta T cell cytokine production | | Any process that contributes to cytokine production by a CD4-positive, alpha-beta T cell. |
| GO:0006888 | | ER to Golgi vesicle-mediated transport | | The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi. |
| GO:0006958 | | complement activation, classical pathway | | Any process involved in the activation of any of the steps of the classical pathway of the complement cascade which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes. |
| GO:0002376 | | immune system process | | Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats. |
| GO:0045087 | | innate immune response | | Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens. |
| GO:0045916 | | negative regulation of complement activation | | Any process that stops, prevents, or reduces the frequency, rate or extent of complement activation. |
| GO:2000516 | | positive regulation of CD4-positive, alpha-beta T cell activation | | Any process that activates or increases the frequency, rate or extent of CD4-positive, alpha-beta T cell activation. |
| GO:2000563 | | positive regulation of CD4-positive, alpha-beta T cell proliferation | | Any process that activates or increases the frequency, rate or extent of CD4-positive, alpha-beta T cell proliferation. |
| GO:0007204 | | positive regulation of cytosolic calcium ion concentration | | Any process that increases the concentration of calcium ions in the cytosol. |
| GO:0030449 | | regulation of complement activation | | Any process that modulates the frequency, rate or extent of complement activation. |
| GO:0031664 | | regulation of lipopolysaccharide-mediated signaling pathway | | Any process that modulates the frequency, rate or extent of signaling in response to detection of lipopolysaccharide. |
| GO:0045730 | | respiratory burst | | A phase of elevated metabolic activity, during which oxygen consumption increases; this leads to the production, by an NADH dependent system, of hydrogen peroxide (H2O2), superoxide anions and hydroxyl radicals. |
| 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. |
cellular component |
| GO:0000139 | | Golgi membrane | | The lipid bilayer surrounding any of the compartments of the Golgi apparatus. |
| GO:0031225 | | anchored component of membrane | | The component of a membrane consisting of the gene products that are tethered to the membrane only by a covalently attached anchor, such as a lipid group that is embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping. |
| GO:0009986 | | cell surface | | The external part of the cell wall and/or plasma membrane. |
| GO:0033116 | | endoplasmic reticulum-Golgi intermediate compartment membrane | | The lipid bilayer surrounding any of the compartments of the endoplasmic reticulum (ER)-Golgi intermediate compartment system. |
| 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: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:0005887 | | integral component of plasma membrane | | The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane. |
| GO: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: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:0030133 | | transport vesicle | | Any of the vesicles of the constitutive secretory pathway, which carry cargo from the endoplasmic reticulum to the Golgi, between Golgi cisternae, from the Golgi to the ER (retrograde transport) or to destinations within or outside the cell. |