Catalysis of the reaction: uridine + phosphate = uracil + alpha-D-ribose 1-phosphate.

negative regulation of organismal physiological process

Any process that stops, prevents or reduces the rate of an organismal physiological process, the processes pertinent to the function of an organism above the cellular level; includes the integrated processes of tissues and organs.

The process whereby a relatively unspecialized cell acquires the specialized features of a pigmented cell, such as a melanocyte.

The formation from simpler components of pyrimidine nucleoside diphosphate, a glycosamine consisting of a pyrimidine base linked to a ribose or deoxyribose sugar esterified with diphosphate on its glycose moiety.

positive regulation of cellular physiological process

Any process that activates or increases the rate of a cellular physiological process, the processes pertinent to the integrated function of a cell.

regulation of pigment cell differentiation

Any process that modulates the frequency, rate or extent of pigmented cell differentiation.

Catalysis of the reaction: hydroxymethylbilane = uroporphyrinogen-III + H2O.

negative regulation of cellular physiological process

Any process that stops, prevents or reduces the rate of a cellular physiological process, the processes pertinent to the integrated function of a cell.

Catalysis of the reaction: uroporphyrinogen-III = coproporphyrinogen + 4 CO2.

regulation of cellular physiological process

Any process that modulates the frequency, rate or extent of a cellular physiological process, the processes pertinent to the integrated function of a cell.

Catalysis of the reaction: xanthine + NAD+ + H2O = urate + NADH + H+.

negative regulation of cellular defense response

negative regulation of cellular defence response

Any process that stops, prevents, or reduces the rate of the cellular defense response.

The directed movement of fructose into, out of, within or between cells. Fructose exists in a open chain form or as a ring compound. D-fructose is the sweetest of the sugars and is found free in a large number of fruits and honey.