Rhea list of ChEBI terms representing the major species at pH 7.3.
Term not to be used for direct annotation
Term not to be used for direct manual annotation
The production of new individuals that contain some portion of genetic material inherited from one or more parent organisms.
Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats.
Note that this term is a direct child of 'biological_process ; GO:0008150' because some immune system processes are types of cellular process (GO:0009987), whereas others are types of multicellular organism process (GO:0032501).
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
A transcription regulator activity that modulates transcription of gene sets via selective and non-covalent binding to a specific double-stranded genomic DNA sequence (sometimes referred to as a motif) within a cis-regulatory region. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units, and include bacterial operons.
nucleic acid binding transcription factor activity
DNA binding transcription factor activity
gene-specific transcription factor activity
sequence-specific DNA binding transcription factor activity
bacterial-type DNA binding transcription factor activity
bacterial-type RNA polymerase core promoter proximal region sequence-specific DNA binding transcription factor activity
bacterial-type RNA polymerase transcription enhancer sequence-specific DNA binding transcription factor activity
bacterial-type RNA polymerase transcription factor activity, metal ion regulated sequence-specific DNA binding
bacterial-type RNA polymerase transcription factor activity, sequence-specific DNA binding
metal ion regulated sequence-specific DNA binding bacterial-type RNA polymerase transcription factor activity
metal ion regulated sequence-specific DNA binding transcription factor activity
sequence-specific DNA binding bacterial-type RNA polymerase transcription factor activity
transcription factor activity, bacterial-type RNA polymerase core promoter proximal region sequence-specific binding
transcription factor activity, bacterial-type RNA polymerase proximal promoter sequence-specific DNA binding
transcription factor activity, bacterial-type RNA polymerase transcription enhancer sequence-specific binding
transcription factor activity, metal ion regulated sequence-specific DNA binding
Usage guidance: Most DNA-binding transcription factors do not have enzymatic activity. The presence of specific DNA-binding domains known to be present in DNA-binding transcription factors (HOX, GATA etc) should be used to help decide whether a protein is a DNA binding transcription factor or a coregulator. If a protein has an enzymatic activity (for example, ubiquitin ligase, histone acetyl transferase) and no known DNA binding domain, consider annotating to GO:0003712 transcription coregulator activity. Special care should be taken with proteins containing zinc fingers, Myb/SANT and ARID domains, since only a subset of proteins containing these domains directly and selectively bind to regulatory DNA motifs in cis-regulatory regions.
DNA-binding transcription factor activity
Binding to an RNA molecule or a portion thereof.
Exportin-5 recognizes 3' overhang of pre-miRNA
Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
Binding to 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.
Where appropriate, also consider annotating to 'receptor agonist activity ; GO:0048018'.
The action of a molecule that contributes to the structural integrity of a complex.
Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells.
Some transporters, such as certain members of the SLC family, are referred to as 'carriers'; however GO uses carrier with a different meaning: a carrier binds to and transports the substance (see GO:0140104 molecular carrier activity), whereas a transporter forms some pore that allows the passing of molecules.
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.
Note that this term is intended to annotate gene products that are not attached to the cell surface. For gene products from multicellular organisms which are secreted from a cell but retained within the organism (i.e. released into the interstitial fluid or blood), consider the cellular component term 'extracellular space ; GO:0005615'.
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
Chromosomes include parts that are not part of the chromatin. Examples include the kinetochore.
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
Some anaerobic or microaerophilic organisms (e.g. Entamoeba histolytica, Giardia intestinalis and several Microsporidia species) do not have mitochondria, and contain mitochondrion-related organelles (MROs) instead, called mitosomes or hydrogenosomes, very likely derived from mitochondria. To annotate gene products located in these mitochondrial relics in species such as Entamoeba histolytica, Giardia intestinalis or others, please use GO:0032047 'mitosome' or GO:0042566 'hydrogenosome'. (See PMID:24316280 for a list of species currently known to contain mitochondrion-related organelles.)
A vacuole to which materials ingested by endocytosis are delivered.
A closed structure, found only in eukaryotic cells, that is completely surrounded by unit membrane and contains liquid material. Cells contain one or several vacuoles, that may have different functions from each other. Vacuoles have a diverse array of functions. They can act as a storage organelle for nutrients or waste products, as a degradative compartment, as a cost-effective way of increasing cell size, and as a homeostatic regulator controlling both turgor pressure and pH of the cytosol.
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
A membrane-bound cytoplasmic organelle of the endomembrane system that further processes the core oligosaccharides (e.g. N-glycans) added to proteins in the endoplasmic reticulum and packages them into membrane-bound vesicles. The Golgi apparatus operates at the intersection of the secretory, lysosomal, and endocytic pathways.
Note that the Golgi apparatus can be located in various places in the cytoplasm. In plants and lower animal cells, the Golgi apparatus exists as many copies of discrete stacks dispersed throughout the cytoplasm, while the Golgi apparatus of interphase mammalian cells is a juxtanuclear, often pericentriolar reticulum, where the discrete Golgi stacks are stitched together to form a compact and interconnected ribbon, sometimes called the Golgi ribbon.
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
A cellular structure that forms the internal framework of eukaryotic and prokaryotic cells. The cytoskeleton includes intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y.
Any cellular metabolic process involving deoxyribonucleic acid. This is one of the two main types of nucleic acid, consisting of a long, unbranched macromolecule formed from one, or more commonly, two, strands of linked deoxyribonucleotides.
The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
The internally coordinated responses (actions or inactions) of animals (individuals or groups) to internal or external stimuli, via a mechanism that involves nervous system activity.
1. Note that this term is in the subset of terms that should not be used for direct gene product annotation. Instead, select a child term or, if no appropriate child term exists, please request a new term. Direct annotations to this term may be amended during annotation reviews. 2. While a broader definition of behavior encompassing plants and single cell organisms would be justified on the basis of some usage (see PMID:20160973 for discussion), GO uses a tight definition that limits behavior to animals and to responses involving the nervous system, excluding plant responses that GO classifies under development, and responses of unicellular organisms that has general classifications for covering the responses of cells in multicellular organisms (e.g. cell chemotaxis).
Binding to a protein component of a cytoskeleton (actin, microtubule, or intermediate filament cytoskeleton).
Binding to a transcription factor, a protein required to initiate or regulate transcription.
Note that this term should not be used for direct annotation. Please consier one of the more specific descendants, GO:0140297 ; DNA-binding transcription factor binding, GO:0140296 ; general transcription initiation factor binding or GO:0001221 ; transcription coregulator binding.
The multiplication or reproduction of cells, resulting in the expansion of a cell population.
This term was moved out from being a child of 'cellular process' because it is a cell population-level process, and cellular processes are restricted to those processes that involve individual cells. Also note that this term is intended to be used for the proliferation of cells within a multicellular organism, not for the expansion of a population of single-celled organisms.
The chemical reactions and pathways resulting in the breakdown of substances, including the breakdown of carbon compounds with the liberation of energy for use by the cell or organism.
multicellular organismal catabolic process
A process which begins when a cell receives an internal or external signal and activates a series of biochemical events (signaling pathway). The process ends with the death of the cell.
Note that this term should be used to annotate gene products in the organism undergoing the programmed cell death. To annotate genes in another organism whose products modulate programmed cell death in a host organism, consider the term 'modulation by symbiont of host programmed cell death ; GO:0052040'. Also, note that 'programmed cell death ; GO:0012501' should be used to refer to instances of caspase-independent cell death mechanisms, in the absence of further indications on the process taking place. At present, caspase-independent cell death is not yet represented in GO due to the lack of consensus and in-depth research on the topic. 'programmed cell death ; GO:0012501' may also be used to annotate gene products in taxa where apoptosis as defined in GO:0006915 does not occur, such as plants. You may also consider these specific children: GO:0097468 'programmed cell death in response to reactive oxygen species' (with descendants GO:0010421 'hydrogen peroxide-mediated programmed cell death' and GO:0010343 'singlet oxygen-mediated programmed cell death'), and GO:0009626 'plant-type hypersensitive response' and its children.
A process that results in the assembly, arrangement of constituent parts, or disassembly of a cellular component.
cellular component organisation at cellular level
cellular component organisation in other organism
cellular component organization at cellular level
cellular component organization in other organism
The cellular chemical reactions and pathways involving RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
The chemical reactions and pathways involving a protein. Includes protein modification.
protein metabolic process and modification
multicellular organismal protein metabolic process
The entirety of a process in which information is transmitted within a biological system. This process begins with an active signal and ends when a cellular response has been triggered.
Note that a signal is any variable property or parameter that serves to convey information, and may be a physical entity such as a gene product or small molecule, a photon, or a change in state such as movement or voltage change.
A cellular component that forms a specialized region of connection between two or more cells, or between a cell and the extracellular matrix, or between two membrane-bound components of a cell, such as flagella.
The cellular developmental process in which a relatively unspecialized cell, e.g. embryonic or regenerative cell, acquires specialized structural and/or functional features that characterize a specific cell. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
Binds to and modulates the activity of an enzyme.
This term should only be used in cases when the regulator directly interacts with the enzyme.
Binding to a carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
A vesicle found in the cytoplasm of a cell.
A biological process whose specific outcome is the progression of an integrated living unit: an anatomical structure (which may be a subcellular structure, cell, tissue, or organ), or organism over time from an initial condition to a later condition.
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
A protein complex in this context is meant as a stable set of interacting proteins which can be co-purified by an acceptable method, and where the complex has been shown to exist as an isolated, functional unit in vivo. Acceptable experimental methods include stringent protein purification followed by detection of protein interaction. The following methods should be considered non-acceptable: simple immunoprecipitation, pull-down experiments from cell extracts without further purification, colocalization and 2-hybrid screening. Interactions that should not be captured as protein complexes include: 1) enzyme/substrate, receptor/ligand or any similar transient interactions, unless these are a critical part of the complex assembly or are required e.g. for the receptor to be functional; 2) proteins associated in a pull-down/co-immunoprecipitation assay with no functional link or any evidence that this is a defined biological entity rather than a loose-affinity complex; 3) any complex where the only evidence is based on genetic interaction data; 4) partial complexes, where some subunits (e.g. transmembrane ones) cannot be expressed as recombinant proteins and are excluded from experiments (in this case, independent evidence is necessary to find out the composition of the full complex, if known). Interactions that may be captured as protein complexes include: 1) enzyme/substrate or receptor/ligand if the complex can only assemble and become functional in the presence of both classes of subunits; 2) complexes where one of the members has not been shown to be physically linked to the other(s), but is a homologue of, and has the same functionality as, a protein that has been experimentally demonstrated to form a complex with the other member(s); 3) complexes whose existence is accepted based on localization and pharmacological studies, but for which experimental evidence is not yet available for the complex as a whole.
Binding to a small molecule, any low molecular weight, monomeric, non-encoded molecule.
Small molecules in GO include monosaccharides but exclude disaccharides and polysaccharides.
Receiving a signal and transmitting it in the cell to initiate a change in cell activity. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
receptor activity involved in signal transduction
Any biological process involved in the maintenance of an internal steady state.
negative regulation of homeostatic process
positive regulation of homeostatic process
A prolongation or process extending from a cell, e.g. a flagellum or axon.
The junction between an axon of one neuron and a dendrite of another neuron, a muscle fiber or a glial cell. As the axon approaches the synapse it enlarges into a specialized structure, the presynaptic terminal bouton, which contains mitochondria and synaptic vesicles. At the tip of the terminal bouton 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 terminal bouton secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
A organ system process carried out by any of the organs or tissues of neurological system.
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. The process begins with detection of the stimulus and ends with a change in state or activity or the cell or organism.
Note that this term is in the subset of terms that should not be used for direct gene product annotation. Instead, select a child term or, if no appropriate child term exists, please request a new term. Direct annotations to this term may be amended during annotation QC.
Any process that localizes a substance or cellular component. This may occur via movement, tethering or selective degradation.
The chemical reactions and pathways involving carbohydrate derivative.
carbohydrate derivative metabolic process
This relation is currently used to connect two regulation processes p1 and p2, such that if r1 regulates p1 and r2 regulates p2, and r1 results_in r2 then the regulation of p1 is required for the regulation of p2. For an example of use, see GO:0035958 'regulation of glyoxylate cycle by regulation of transcription from RNA polymerase II promoter'. Note that a precise definition of this relation is under discussion. After it has been formalized it will be added to RO, where it will have a RO ID. Note that the existing identifier and label are subject to change.
has negative regulatory component activity
results in changes to anatomical or cellular structure