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β-Galactosidase from bovine testes

产品编号:3411458
规格:ammonium sulfate suspension, 1.0-3.0 units/mg protein (modified Warburg-Christian)
CAS NO:9031-11-2
包装规格:0.2 UNIT,0.5 UNIT
产品类别:进口试剂
品牌:Sigma-Aldrich
优惠价:立即咨询
产品编号包装单位单价(元)国内现货国外库存询价单
34114580.2 UNIT2870
34114580.5 UNIT5150
产品别名

9031-11-2

β-Galactosidase from bovine testes

β-D-Galactoside galactohydrolase

基本信息
Enzyme Commission (EC) Number【酶学委员会(EC)编号】
3.2.1.23 ( BRENDA | IUBMB )
EC number【EC 号】
232-864-1
MDL number
MFCD00130623
NACRES
NA.54
Application【应用】
β-Galactosidase from bovine testes was used for coupling to Sepharose.
Biochem/physiol Actions【生化/生理作用】
β-galactosidase cleaves lactose into its monosaccharide components, glucose and galactose. It also catalyses the transglycosylation of glucose into allolactose, the inducer of β-galactosidase, in a feedback loop.
Unit Definition【单位定义】
One unit will hydrolyze 1.0 μmole of p-nitrophenyl β-D-galactopyranoside to p-nitrophenol and D-galactopyranose per min at pH 4.4 at 25 ℃.
Physical form【外形】
Suspension in 3.2 M (NH4)2SO4, pH approx. 5.0
产品性质
Quality Level【质量水平】
200
biological source【生物来源】
bovine
form【形式】
ammonium sulfate suspension
Specific Activity
1.0-3.0 units/mg protein (modified Warburg-Christian)
foreign activity【异质活性】
α- and β-glucosidase ≤0.2%
α-fucosidase ≤0.2%
α-galactosidase ≤0.2%
α-mannosidase ≤0.2%
β-N-acetylglucosaminidase ≤1.0%
storage temp.【储存温度】
2-8℃
安全信息
Storage Class Code【储存分类代码】
13 - Non Combustible Solids
WGK
WGK 3
Personal Protective Equipment【个人防护装备】
Eyeshields, Gloves, type N95 (US)
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