type
Grade VIII
Quality Segment
form
lyophilized powder
specific activity
≥500 units/mg protein
mol wt
465 kDa
does not contain
BSA as extender
composition
Protein, ≥60% biuret
storage temp.
−20°C
General description
四聚体的分子量为465 kDa(每个亚基116.3 kDa)
Biochem/physiol Actions
β-半乳糖苷酶可将乳糖切割成单糖成分(葡萄糖和半乳糖)。它还在反馈环中催化葡萄糖转糖基化为β-半乳糖苷酶的诱导物 - 异乳糖。
Physical form
含有Tris缓冲盐和氯化镁
Other Notes
在37 °C,pH 7.3条件下,一个单位每分钟可将1.0μmole邻硝基苯基β-D -半乳糖苷水解为邻硝基苯酚和D -半乳糖。
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存储类别
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
