Description
Adenosine deaminase is an enzyme (EC 3.5.4.4) involved in purine metabolism. It is needed for the breakdown of adenosine from food and for the turnover of nucleic acids in tissues. Present in virtually all mammalian cells, its primary function in Humans is the development and maintenance of the immune system.
Enzyme Commission Number
EC 3.5.4.4
Activity
150~200U/mg protein
Molecular Weight
33 kDa (SDS-PAGE)
Michaelis Constant
2.2x10-5M (androsterone)
Unit Definition
One unit will deaminate one micromole of adenosine to inosine per minute at pH 7.4 at 25°C.
Thermal stability
< 60°C (pH7.4, 20min)
Storage
Storage: Temperature 2-8 centigrade
Inhibitors
Ag+, Hg2+,Cu2+
Preparation Instructions
The enzyme preparation may be dilutedin water or buffer to a protein concentration of 1mg/ml, producing a clear, colorless solution.
Synonyms
ADA; adenosine deaminase; adenosine aminohydrolase; 9026-93-1; EC 3.5.4.4
