positive regulation of programmed cell death

Any process that activates or increases the rate of programmed cell death, cell death resulting from activation of endogenous cellular processes.

negative regulation of programmed cell death

Any process that stops, prevents or reduces the rate of programmed cell death, cell death resulting from activation of endogenous cellular processes.

nucleotide-excision repair, DNA damage removal

The removal of the oligonucleotide that contains the DNA damage. The oligonucleotide is formed by dual incisions that flank the site of DNA damage.

oxygen and reactive oxygen species metabolism

The chemical reactions involving dioxygen (O2), or any of the reactive oxygen species, e.g. superoxide anions (O2-), hydrogen peroxide (H2O2), and hydroxyl radicals (-OH).

The chemical reactions involving superoxide, the superoxide anion O2- (superoxide free radical), or any compound containing this species.

Catalysis of the reaction: 3-methyl-2-oxobutanoate + lipoamide = S-(2-methylpropanoyl)dihydrolipoamide + CO2.

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

The chemical reactions involving a xenobiotic compound, a compound foreign to living organisms. Used of chemical compounds, e.g. a xenobiotic chemical, such as a pesticide.

Catalysis of the reaction: a 3-oxo-5-alpha-steroid + acceptor = a 3-oxo-delta(4)-steroid + reduced acceptor.

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

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

The chemical reactions involving various organic and inorganic nitrogenous compounds; includes nitrogen fixation, nitrification, denitrification, assimilatory/dissimilatory nitrate reduction and the interconversion of nitrogenous organic matter and ammonium.

Catalysis of the reaction: 4-aminobutanoate + 2-oxoglutarate = succinate semialdehyde + L-glutamate.

Any process that modulates the activity of the GTPase Cdc42.

Catalysis of the reaction: 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2.