The process during which a photoreceptor, a cell that responds to incident electromagnetic radiation, commit to their cell fate. Different classes of photoreceptor have different spectral sensitivities and express different photosensitive pigments.

The breakdown of tryptophan into simpler components, including kynurenine.

Any process that activates or increases the activity of an enzyme.

Any process that stops or reduces the activity of an enzyme.

Any process that modulates the rate of GTP hydrolysis by a GTPase.

Any process that modulates the activity of the GTPase Cdc42.

The breakdown into simpler components of L-cysteine, the levorotatory isomer of 2-amino-3-mercaptopropanoic acid.

negative regulation of Ras protein signal transduction

Any process that stops, prevents or reduces the rate, frequency or extent of Ras protein signal transduction.

regulation of non-apoptotic programmed cell death

regulation of nonapoptotic programmed cell death

Any process that modulates the frequency, rate or extent of non-apoptotic programmed cell death, cell death resulting from activation of endogenous cellular processes, by a mechanism other than apoptosis.

An extremely narrow tubular channel located between adjacent cells. An instance of this is the secretory canaliculi occurring between adjacent parietal cells in the gastric mucosa of vertebrates.

positive regulation of non-apoptotic programmed cell death

positive regulation of nonapoptotic programmed cell death

Any process that activates or increases the rate, frequency or extent of non-apoptotic programmed cell death, cell death resulting from activation of endogenous cellular processes, by a mechanism other than apoptosis.

Increases the rate of GTP hydrolysis by the GTPase Rap.

negative regulation of non-apoptotic programmed cell death

negative regulation of nonapoptotic programmed cell death

Any process that stops, prevents or reduces the rate, frequency or extent of non-apoptotic programmed cell death, cell death resulting from activation of endogenous cellular processes, by a mechanism other than apoptosis.