Go terms map to parent GO term: GO:0009605   response to external stimulus
GOID
Link to GO
Functional Category Description Protein Count
link to
protein list

GO:0043481 anthocyanin accumulation in tissues in response to UV light The aggregation of the pigment anthocyanin in a particular location in a tissue, occurring in response to a UV light stimulus. 356
GO:0007411 axon guidance The chemotaxis process that directs the migration of an axon growth cone to a specific target site in response to a combination of attractive and repulsive cues. 257
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. 180
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. 111
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). 52
GO:0009649 entrainment of circadian clock The synchronization of a circadian rhythm to environmental time cues such as light. 46
GO:0009585 red, far-red light phototransduction The sequence of reactions within a cell required to convert absorbed photons from red or far-red light into a molecular signal; the red, far-red light range is defined as having a wavelength within the range 660-730 nm. 39
GO:0016045 detection of bacterium The series of events in which a stimulus from a bacterium is received and converted into a molecular signal. 31
GO:0007638 mechanosensory behavior Behavior that is dependent upon the sensation of a mechanical stimulus. 29
GO:0043327 chemotaxis to cAMP The directed movement of a motile cell or organism in response to the presence of 3',5'-cAMP. 28
GO:0042331 phototaxis The directed movement of a motile cell or organism in response to light. 26
GO:0001966 thigmotaxis The directed movement of a motile cell or organism in response to touch. 26
GO:0008045 motor neuron axon guidance The process in which the migration of an axon growth cone of a motor neuron is directed to a specific target site in response to a combination of attractive and repulsive cues. 26
GO:0016062 adaptation of rhodopsin mediated signaling The process in which a rhodopsin-mediated signaling pathway is adjusted to modulate the sensitivity and response of a visual system to light stimuli (that might vary over more than 6 magnitudes in intensity) without response saturation. 23
GO:0009581 detection of external stimulus The series of events in which an external stimulus is received by a cell and converted into a molecular signal. 22
GO:0046956 positive phototaxis The directed movement of a cell or organism towards a source of light. 19
GO:0050974 detection of mechanical stimulus involved in sensory perception The series of events in which a sensory mechanical stimulus is received by a cell and converted into a molecular signal. 19
GO:0010183 pollen tube guidance The process in which the growth of pollen tube is directed towards the female gametophyte. 19
GO:0072499 photoreceptor cell axon guidance The chemotaxis process that directs the migration of a photoreceptor cell axon growth cone to its target in the optic lobe in response to a combination of attractive and repulsive cues. 18
GO:0042332 gravitaxis The directed movement of a motile cell or organism in response to gravity. 18
GO:0048846 axon extension involved in axon guidance The long distance growth of a single cell process, that is involved in the migration of an axon growth cone, where the migration is directed to a specific target site by a combination of attractive and repulsive cues. 15
GO:0033563 dorsal/ventral axon guidance The process in which the migration of an axon growth cone is directed to a specific target site along the dorsal-ventral body axis in response to a combination of attractive and repulsive cues. The dorsal/ventral axis is defined by a line that runs orthogonal to both the anterior/posterior and left/right axes. The dorsal end is defined by the upper or back side of an organism. The ventral end is defined by the lower or front side of an organism. 15
GO:0002551 mast cell chemotaxis The movement of a mast cell in response to an external stimulus. 15
GO:0035646 endosome to melanosome transport The directed movement of substances from endosomes to the melanosome, a specialised lysosome-related organelle. 15
GO:0043052 thermotaxis The directed movement of a motile cell or organism in response to a temperature gradient. Movement may be towards either a higher or lower temperature. 13
GO:0009590 detection of gravity The series of events in which a gravitational stimulus is received by a cell and converted into a molecular signal. 11
GO:0050918 positive chemotaxis The directed movement of a motile cell or organism towards a higher concentration of a chemical. 10
GO:0009584 detection of visible light The series of events in which a visible light stimulus is received by a cell and converted into a molecular signal. A visible light stimulus is electromagnetic radiation that can be perceived visually by an organism; for organisms lacking a visual system, this can be defined as light with a wavelength within the range 380 to 780 nm. 9
GO:0009991 response to extracellular 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 an extracellular stimulus. 7
GO:0016048 detection of temperature stimulus The series of events in which a temperature stimulus (hot or cold) is received and converted into a molecular signal. 7
GO:0001964 startle response An action or movement due to the application of a sudden unexpected stimulus. 6
GO:0060326 cell chemotaxis The directed movement of a motile cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis). 6
GO:0043153 entrainment of circadian clock by photoperiod The synchronization of a circadian rhythm to photoperiod, the intermittent cycle of light (day) and dark (night). 5
GO:0016199 axon midline choice point recognition The recognition of molecules at the central nervous system midline choice point by an axon growth cone; this choice point determines whether the growth cone will cross the midline. 5
GO:0050908 detection of light stimulus involved in visual perception The series of events involved in visual perception in which a sensory light stimulus is received by a cell and converted into a molecular signal. 5
GO:0071496 cellular response to external 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 external stimulus. 5
GO:0009583 detection of light stimulus The series of events in which a light stimulus (in the form of photons) is received and converted into a molecular signal. 5
GO:0016056 rhodopsin mediated signaling pathway The series of molecular signals generated as a consequence of excitation of rhodopsin by a photon and the events that convert the absorbed photons into a cellular response. 5
GO:0002407 dendritic cell chemotaxis The movement of a dendritic cell in response to an external stimulus. 4
GO:0035995 detection of muscle stretch The series of events by which a muscle stretch stimulus is received by a cell and converted into a molecular signal. 4
GO:0009589 detection of UV The series of events in which an ultraviolet radiation (UV light) stimulus is received by a cell and converted into a molecular signal. Ultraviolet radiation is electromagnetic radiation with a wavelength in the range of 10 to 380 nanometers. 4
GO:0009606 tropism The movement of an organism, or part of an organism, in response to an external source of stimulus, usually toward or away from it. 3
GO:0050982 detection of mechanical stimulus The series of events by which a mechanical stimulus is received by a cell and converted into a molecular signal. 3
GO:0060013 righting reflex A reflex process in which an animal immediately tries to turn over after being placed in a supine position. 2
GO:0007603 phototransduction, visible light The sequence of reactions within a cell required to convert absorbed photons from visible light into a molecular signal. A visible light stimulus is electromagnetic radiation that can be perceived visually by an organism; for organisms lacking a visual system, this can be defined as light with a wavelength within the range 380 to 780 nm. 1
GO:0030595 leukocyte chemotaxis The movement of a leukocyte in response to an external stimulus. 1