Specific activity:≥ 90U/mg protein

Unit definition:One unit will oxidate one micromole of androsterone per min at pH 8.25 at 25℃.

Molecular weight:28 kDa (SDS-PAGE)

Isoelectric point:7.5

Michaelis constant:3.0×10-5M(androsterone) 6.0×10-6M(NAD+)

Optimum pH:10.5

Optimum temperature:60℃

pH Stability:4.5~10.5(30℃,20hr)

Thermal stability:< 50℃ (pH 7.2, 20min)

Inhibitors:Ag+,Hg2+,Cu2