Endo Hf is a recombinant protein fusion of Endoglycosidase H and maltose binding protein. Endo Hf cleaves within the chitobiose core of high mannose and some hybrid oligosaccharides from N-linked glycoproteins (1) equally as well as Endo H.
60 μg of RNase B was incubated with 3,000 units of Endo H or Endo Hf under standard assay conditions Aliquots were removed at various time points and measured for released carbohydrate. [Dubois et al. (1956) Anal. Chem. 28, 350-356].Mobility Shift Analysis 1 unit of Endo H, Endo Hf or PNGase F was incubated per 10 µg of RNase B under standard assay conditions. At various time points, aliquots were removed and analyzed on a 10-20% SDS-gel for carbohydrate (CHO) release. 1 unit is defined as the amount of enzyme required to remove >95% of the carbohydrate from 10 µg of RNase B in one hour at 37°C.
Product Source
Cloned from Streptomyces picatus (2) and overexpressed in E.coli (3).
This product is related to the following categories:
One unit is defined as the amount of enzyme required to remove > 95% of the carbohydrate from 10 µg of denatured RNase B in 1 hour at 37°C in a total reaction volume of 10 µl (10 NEB units = 1 IUB milliunit).
Unit Definition Assay: 10 µg of RNase B are denatured with 1X Glycoprotein Denaturing Buffer (0.5% SDS, 40 mM DTT) at 100°C for 10 minutes. After the addition of 1X GlycoBuffer 3, two-fold dilutions of Endo Hf are added and the reaction mix is incubated for 1 hour at 37°C. Separation of reaction products are visualized by SDS-PAGE.
1X Glycoprotein Denaturing Buffer 0.5% SDS 40 mM DTT
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