Any process that stops, prevents or reduces the rate of cell activation.

Any process that activates or increases the rate of activation.

negative regulation of T cell activation

negative regulation of T-lymphocyte activation

Any process that stops, prevents or reduces the rate of T cell activation.

Trimeric protein complex that possesses endonuclease activity; involved in DNA repair and checkpoint signaling. In Saccharomyces the complex comprises Mre11p, Rad50p, and Xrs2p; complexes identified in other species generally contain proteins related to the Saccharomyces proteins.

negative regulation of B cell activation

negative regulation of B-lymphocyte activation

Any process that stops, prevents or reduces the rate of B cell activation.

The branch of the pentose-phosphate shunt which involves the oxidation of glucose 6-P and produces ribulose 5-P, reduced NADP+ and carbon dioxide (CO2).

Catalysis of the reaction: CTP + N-acylneuraminate = diphosphate + CMP-N-acylneuraminate.

The branch of the pentose-phosphate shunt which does not involve oxidation reactions. It comprises a series of sugar phosphate interconversions, starting with ribulose 5-P and producing fructose 6-P and glyceraldehyde 3-P.

Any substance that is able to transfer an electron to another chemical species.

Catalysis of the reaction: agmatine + H2O = putrescine + urea.

Any substance to which an electron may be transferred.

Any molecular entity that serves as an electron acceptor and electron donor in an electron transport system.

Catalysis of the reaction: octane hydroperoxide + NADH + H+ = H2O + NAD+ + 1-octanol.

Any metabolic process involving the breakdown of complex substances into smaller products, including the breakdown of carbon compounds with the liberation of energy for use by the cell or organism.

The breakdown into simpler components of a macromolecule, any large molecule including proteins, nucleic acids and carbohydrates.

The energy-requiring part of metabolism in which simpler substances are transformed into more complex ones, as in growth and other biosynthetic processes.