go_id,ontology,go_term,term_definition,evidence GO:0004871,MF,"signal transducer activity","Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.",IMP GO:0005125,MF,"cytokine activity","Functions to control the survival, growth, differentiation and effector function of tissues and cells.",TAS GO:0005615,CC,"extracellular space","That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.",TAS GO:0005794,CC,"Golgi apparatus","A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.",IDA GO:0005886,CC,"plasma membrane","The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.",IEA GO:0006955,BP,"immune response","Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.",TAS GO:0007165,BP,"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.",IEA GO:0007498,BP,"mesoderm development","The process whose specific outcome is the progression of the mesoderm over time, from its formation to the mature structure. The mesoderm is the middle germ layer that develops into muscle, bone, cartilage, blood and connective tissue.",ISS GO:0016021,CC,"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.",IEA GO:0043123,BP,"positive regulation of I-kappaB kinase/NF-kappaB signaling","Any process that activates or increases the frequency, rate or extent of I-kappaB kinase/NF-kappaB signaling.",IMP GO:0070062,CC,"extracellular exosome","A membrane-bounded 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.",IDA