•  Enzyme Commission (EC) Number  5.1.3.1  ( BRENDA | IUBMB )

•  MDL number  MFCD00130909

产品名称

Unit Definition

在 pH 7.7 和 25°C 下，与转酮醇酶、α-甘油磷酸脱氢酶和磷酸丙糖异构酶偶联时，一单位每分钟可将 1μmol 的-核酮糖-5-磷酸转化为-木酮糖-5-磷酸。

Physical form

基本上无硫酸盐的冻干粉：约含35% 的柠檬酸缓冲盐

Application

D-Ribulose-5-phosphate 3-Epimerase is an enzyme that converts the reversible conversion of D-ribulose 5-phosphate into D-xylulose 5-phosphate, which is important for the cellular response against oxidative stress . D-Ribulose-5-phosphate 3-Epimerase is involved in the pentose phosphate pathway, pentose and glucuronate interconversions and carbon fixation. Product R3251 is from baker’s yeast and is provided as a lyophilized powder. It is useful in enzyme systems requiring low sulfate.

Biochem/physiol Actions

RPE is a metalloenzyme and has been shown to use the divalent Zn²⁺ ion predominantly for catalysis. Human D-ribulose-5-phosphate 3-epimerase (hRPE) has been shown to use Fe²⁺ for catalysis .

性质