SKU: 1761881684

IdeZ Protease

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Description

IdeZ ProteaseProduct Specification Species Streptococcus pyogenes Synonyms IgG endopeptidase Amino Acid Sequence N. A Expression System E. coli Molecular Weight 36kDa Purity >95% by SDS PAGE Conjugation Unconjugated Tag His Tag Physical Appearance Liquid Storage Buffer 20 mM Tris HCl, 50 mM NaCl, 1 mM EDTA, pH 7. 5 Reconstitution N. A Stability & Storage 12 months from date of receipt, 20 to 70 C as supplied; 1 week, 2 to 8 C under sterile conditions; Please avoid

Product Specification


Species Streptococcus pyogenes
Synonyms IgG endopeptidase
Amino Acid Sequence

N.A

Expression System E.coli
Molecular Weight

36kDa

Purity >95% by SDS-PAGE
Conjugation Unconjugated
Tag His Tag
Physical Appearance Liquid
Storage Buffer 20 mM Tris-HCl, 50 mM NaCl, 1 mM EDTA, pH 7.5
Reconstitution

N.A

Stability & Storage

12 months from date of receipt, -20 to -70 °C as supplied; 

1 week, 2 to 8 °C under sterile conditions; 

Please avoid repeated freeze-thaw cycles.

Reference

1.Shi S, Mcleod B, Magnelli P, et al. The Utility of IdeZ Protease in Glycan Profiling of Therapeutic Antibodies[J]. Glycobiology, 2016(12):26. 

2.Cheng-Wei H, Jie P, Yu-Qing O, et al. Characteristics of IgG degradation enzyme IdeZ in Streptococcus equi ssp. zooepidimicus[J]. Chinese Journal of Preventive Veterinary Medicine, 2018.

Background

IdeZ Protease secreted by the Streptococcus equi subspecies zooepidemicus. This product is an engineered recombinant protease over expressed in Escherichia coli. It can specifically identify IgG, and perform enzyme digestion at specific sites in the hinge region of the antibody, and produce F(ab')2 fragments and Fc fragments, which can identify human and other animal IgG, such as mouse, rabbit, monkey, sheep and human animal chimeric IgG, etc, It can be used for structural characterization analysis of antibodies and fusion protein drugs.

Protocol

1. Add the desired amount of 5mg IgG in digestion buffer or other compatible buffer*.

2. Add IdeZ Protease to the reaction system:

• Add 1 unit of IdeZ Protease per 1µg of IgG to be digested.

• For example, add 5µl (200 units) of reconstituted IdeZ to digest 200µg of IgG.

3. Incubate sample at 37°C for 30–60 minutes


Unit Definition

One unit will cleave ≥95% of 1µg of recombinant monoclonal IgG in 30 minutes at 37°C
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Exchange/Return Notes
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SKU: 1761881684

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4.9 ★★★★★
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Reader's Edyn
Whiting, US
★★★★★ 5
High Quality Paper Towels That Actually Last
Package Size Name: Triple, Size: 141 Sheets (Pack of 16)
These are easily some of the best paper towels we’ve used. The cloth-like feel makes a noticeable difference right away. They’re soft but still very strong, and they hold up well even when wet without tearing apart. Absorbency is excellent, so you don’t need to use multiple sheets to clean up a mess. One sheet usually gets the job done, which makes them more efficient than most standard options. They’re also thick enough to handle tougher cleaning without falling apart. Overall, great quality and very reliable. The whole family uses them, and they’ve held up well for everything we need.
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Reviewed in the United States on April 6, 2026
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NG
Omaha, US
★★★★★ 5
Feels super high quality
Package Size Name: Family Triple Roll, Size: 141 Sheets (Pack of 12)
Best paper towel ever - honestly they don’t feel like paper, they’re soft almost like an actual towel. These are the best for wiping my kids faces and hands because they’re soft and don’t fall apart. Also great for pets because I can scrub my carpet when my dog has an accident and the paper towel does not shred. 10/10 recommend these. They also don’t unravel and fling all over the place so I like to have a roll by my back door for the dogs paws, super convenient. The roll kind of sticks to itself so it stays tidy.
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Reviewed in the United States on April 15, 2026
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Verified Purchase
Adam Yarosz
Pawtucket, US
★★★★★ 5
The best ever paper towels
Package Size Name: Family Triple Roll, Size: 141 Sheets (Pack of 12)
These are hands down the best paper towels I have ever used. If you haven’t tried them yet, you absolutely should. They truly feel more like a soft cloth than a paper towel, and the absorbency is incredible. They’re durable, super soft, and handle messes so well without falling apart. I am officially a buyer for life and won’t be going back to anything else!
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Reviewed in the United States on April 9, 2026
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Verified Purchase
VickiB
Massapequa, US
★★★★★ 5
These are the best paper towel ever!
Package Size Name: Family Triple Roll, Size: 141 Sheets (Pack of 12)
The reason I say these are the best paper towels is because they are more like a cloth than actual paper. If you're doing something larger like cleaning the kitchen sinks you can usually get by with just one. You can wet it down, ring it out and continue working. When it's time to dry, these soak up so much more liquid than any other towel... It's crazy! They are a bit on the expensive side, but you'll use so fewer towels that it makes up the difference.
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Reviewed in the United States on May 28, 2026
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Kay
Draper, US
★★★★★ 5
Quality
Package Size Name: Triple, Size: 141 Sheets (Pack of 16)
Quality, affordable, durable Will buy over bounty everytime!
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Reviewed in the United States on May 30, 2026

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