| Field | Specification |
|---|---|
| Mfr No | |
| Product Type | |
| Shipping | |
| Source | Recombinant (E. coli) |
| Storage |
Endo S, is a highly specific glycosidase derived from Streptococcus pyogenes. It can cut the N-linked glycans between the core structure of the shell di-saccharides of wild-type IgG heavy chains. This product has a purity of over 95%, high activity, good stability, no glycosidase contamination, and no proteolytic activity. For easy subsequent operations, it is equipped with a histidine (His) tag, which makes it easy to remove from the reaction.
Properties
|
English synonym |
Endo S |
|
Source |
E.coli recombinant expression |
|
Purity |
Detected by SDS-PAGE, purity > 95% |
|
Storage buffer |
PBS pH 7.5 |
|
Specific activity |
8,000 U/mg |
|
Unit Definition |
The definition of a unit is that under a total reaction volume of 10 μL, at 37 °C for 1 hour, 95% of the N-linked glycans in 5 μg of natural mouse IgG can be removed. |
Components
|
Components No. |
Name |
20413ES80 |
20413ES90 |
|
20413-A |
Endo S |
1000 U |
5×1000 U |
|
20413-B |
10×Buffer |
1 mL |
5×1 mL |
Storage
The product can be stored at -15~-25℃ for one year.
Instructions
Reaction systerm
|
Components |
Volume |
|
IgG |
V |
|
Endo S |
1 |
|
10×Buffer |
1 |
|
H2O <Glycerol Content: Contains Glycerol |
Store this enzyme at -20°C and avoid repeated freeze-thaw cycles to preserve catalytic activity. The product is shipped Dry Ice and remains stable for up to one year from the date of manufacture when stored under recommended conditions. Aliquoting the stock solution into single-use volumes is recommended for enzymes used infrequently to minimize thermal cycling of the bulk stock.
This enzyme is validated for use in Protein Research applications. It is suitable for use in both standard laboratory research settings and, where applicable, optimized reaction workflows requiring high specificity, sensitivity, or throughput.
One unit (U) is defined as the amount of enzyme that catalyzes the release of 1 µmol of product per minute at 37°C from a defined glycoprotein or oligosaccharide substrate under standard assay conditions.
This enzyme is produced as Recombinant (E. coli) and supplied as a Research Use Only (RUO) reagent. Each lot is subjected to activity assay, purity assessment by SDS-PAGE, and functional validation prior to release. A Certificate of Analysis (CoA) and Safety Data Sheet (SDS) are available on request.
PNGase F cleaves between the innermost GlcNAc and asparagine of all N-linked glycans regardless of glycan complexity. Endo H cleaves only high-mannose and hybrid-type N-glycans at the chitobiose core, enabling differentiation of ER-retained from Golgi-processed glycoproteins. Endo S is an IgG-specific endoglycosidase that cleaves N-glycans from the Fc region of IgG antibodies, useful in antibody engineering and glycan remodeling workflows.
Yeasen Biotechnology supports custom enzyme solutions across multiple service lines — from GMP-grade bulk supply to directed enzyme engineering. Contact BioHippo to discuss requirements and initiate a project inquiry.
▶ GMP-Grade & Bulk Supply
Select Yeasen enzymes are available in GMP grade, manufactured in an ISO 13485-certified UCF.ME™ ultra-clean molecular enzyme facility with FDA Drug Master File (DMF) support.
- GMP-grade release testing and CoA documentation
- ISO 13485-certified production facility
- Scalable from milligram to multi-gram quantities
- Consistent lot-to-lot activity specifications
▶ Glycerol-Free & Custom Formulation
Glycerol-free enzyme formats are available for applications requiring lyophilization compatibility, liquid handling automation, or direct IVD master mix integration.
- Glycerol-free liquid format (standard and custom buffers)
- Lyophilization-ready enzyme preparation
- Custom reaction buffer optimization for specific assay conditions
- Compatible with freeze-drying workflows for point-of-care formats
▶ Molecular IVD RDC Service
Yeasen's Research and Development Contracting (RDC) team delivers end-to-end solutions for molecular diagnostic product development, covering enzyme selection through clinical validation support.
- Enzyme selection and performance matching
- Primer/probe design and reaction buffer optimization
- Sensitivity, specificity, and precision validation studies
- Stability studies and SNP evaluation
- Instrument platform compatibility assessment
▶ ZymeEditor™ Enzyme Engineering
Yeasen's proprietary ZymeEditor™ directed evolution and rational design platform enables the development of custom enzyme variants with tailored performance characteristics not available in off-the-shelf products.
- Directed evolution for enhanced thermostability, processivity, or fidelity
- Rational design for altered substrate specificity or cofactor requirements
- Library screening from Yeasen's proprietary enzyme variant collection
- Scale-up to commercial quantities upon candidate confirmation
ⓘ Customization services are fulfilled by Yeasen Biotechnology. Lead times and minimum order quantities vary by service type. Contact BioHippo for project scoping and pricing.
