SKU: 70109954197

O-Glycoprotease

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Description

O-GlycoproteaseProduct Specification Synonyms O glycosidase Purity 95% by SDS PAGE Storage Buffer 20 mM Tris HCl100 mM NaCl pH 7. 5 Stability & Storage This product should be stored at 20 and can be stored for at least 12 months. Avoid repeated freezing and thawing. Background O Glycoproteinase is expressed in E. coli and is a highly specific glycoproteinase that can specifically recognize serine or threonine residues of mucin type O linked sugars (whether

Product Specification


Synonyms O-glycosidase
Purity ≥95% by SDS-PAGE
Storage Buffer

20 mM Tris-HCl,100 mM NaCl ,pH 7.5

Stability & Storage

This product should be stored at -20℃ and can be stored for at least 12 months. 

Avoid repeated freezing and thawing.

Background

O-Glycoproteinase is expressed in E. coli and is a highly specific glycoproteinase that can specifically recognize serine or threonine residues of mucin-type O-linked sugars (whether sialylated or not) and cleave them at their N-termini. It can produce O-glycopeptides suitable for mass spectrometry analysis. The enzyme contains a 6X His-Tag, which can be easily removed after the reaction.

Components

Components

Size 1

Size 2

O-glycoprotease

20U

100U

1M Tris-HCl(pH=8.0)

1.0ml

1.0ml×5

1M DTT

0.1ml

0.2ml

1% SDS

0.2ml

1.0ml

500mM iodoacetic acid

0.1ml

0.5ml


Protocol

Instructions (for reference only)

 

  • Mix 10µg of glycoprotein with 20 mM Tris-HCl pH 8.0, 40 mM DTT, 0.1% SDS solution and make the total volume 50µl.
  • Heat at 95°C for 10 minutes.
  • Cool to room temperature.
  • Add 3µl 500mM iodoacetic acid solution.
  • Leave at room temperature for 30 minutes.
  • Transfer the solution to an ultrafiltration centrifuge tube.
  • Centrifuge at 12000 x g for 4 minutes and discard the flow-through.
  • Add 400µl 20mM Tris-HCl, pH 8.0 solution.
  • Centrifuge at 12000 x g for 4 minutes and discard the flow-through. Add 400µl 20mM Tris-HCl, pH 8.0 solution and repeat once.
  • Add 20µl 20mM Tris-HCl, pH 8.0 solution.
  • Add 1µl O-glycoproteinase and mix gently.
  • Incubate at 37˚C for 2-18 hours.
  • Centrifuge at 12000 x g for 4 minutes and collect the supernatant.

Unit Definition

One unit is the amount of enzyme required to cleave more than 90% of a 2 µM O-glycopeptide in 20 mM Tris-HCl, pH 8.0 in a 20 μL reaction at 37°C for 2 hours.
Shipping Notes
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Exchange/Return Notes
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SKU: 70109954197

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DBS
Alexandria, US
★★★★★ 2
Don’t bother, not worth the $
Much smaller in person than it appears. Looks more like a piece of coral than a tree. I got this to display some ornaments for sale at craft fairs, but it’s so small, it looks silly with the ornaments on it. Super flimsy, made of cheap plastic. Definitely not worth $14. Will be returning.
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Reviewed in the United States on May 12, 2026
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Marlene Cayetano
Natrona Heights, US
★★★★★ 5
Durable
Very durable and can hold a few pieces
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Reviewed in the United States on February 4, 2026
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Amazon Customer
Port Orchard, US
★★★★★ 5
Cute
Just as described, perfect for putting rings and bracelets on. I put lines on the branches to resemble a birch tree . Its good value for the money
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Reviewed in the United States on November 8, 2025
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Richard Klementovich
Fort Morgan, US
★★★★★ 1
Cheaply Made
Not worth the money it costs imo
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Reviewed in the United States on March 14, 2026
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Geo L.
Louisville, US
★★★★★ 5
Excellent durability for daily wear
Color: Gold Paperclip
I bought these earrings a year ago and I've been wearing them ever since! I never take them off because they are so comfortable. They never come unlatched and they are very durable. They look great and I love how they have some movement because of the two loops hooked together. For me the size is perfect, but you can always remove the dangling hoop to decrease the weight and create a smaller look. Even with booth hoops installed, they are so light that I cannot feel them in my ears. They would make a lovely gift because they look more expensive than the price I paid.
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Reviewed in the United States on October 8, 2025

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