1. Recombinant Proteins
  2. Enzymes & Regulators
  3. Endo S2 Protein, S. pyogenes (His)

Endo S2, secreted by Streptococcus pyogenes, deglycosylates the conserved N-linked glycan at Asn297 on IgG Fc to eliminate its effector functions and evade the immune system. EndoS2 specifically hydrolyzes diverse glycans on the Fc region of IgG antibodies using a mechanism that relies on its glycoside hydrolase domain and a coevolved carbohydrate-binding module. Endo S2 Protein, S. pyogenes (His) is the recombinant Endo S2 protein, expressed by E. coli , with N-6*His labeled tag.

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  • Biological Activity

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Description

Endo S2, secreted by Streptococcus pyogenes, deglycosylates the conserved N-linked glycan at Asn297 on IgG Fc to eliminate its effector functions and evade the immune system. EndoS2 specifically hydrolyzes diverse glycans on the Fc region of IgG antibodies using a mechanism that relies on its glycoside hydrolase domain and a coevolved carbohydrate-binding module[1][2]. Endo S2 Protein, S. pyogenes (His) is the recombinant Endo S2 protein, expressed by E. coli , with N-6*His labeled tag.

Background

EndoS2 has a broader substrate glycan specificity, hydrolyzing not only biantennary CT N-glycans, but also high-mannose (HM), hybrid, and bisecting CT N-glycans on IgG[1].
Endo-β-N-acetylglucosaminidases (ENGases, EC 3.2.1.96) are a class of enzymes, which can hydrolytically cleave β-1,4 glycosidic bonds within the N,N′-diacetylchitobiose moiety in the inner-core region of N-glycan and release glycan chain from their associated proteins, thus leaving one unit of N-acetylglucosamine (GlcNAc), with or without the core fucose, linked to the asparagine residue[2].

Species

Others

Source

E. coli

Tag

N-6*His

Accession

A0A0H3C1U3/ACI61688.1 (E37-D843)

Gene ID

/

Molecular Construction
N-term
6*His
Endo S2 (E37-D843)
Accession # A0A0H3C1U3/ACI61688.1
C-term
Synonyms
Secreted Endo-beta-N-acetylglucosaminidase (EndoS); endoS; Spy49_1414c; Endo-beta-N-acetylglucosaminidase S2
AA Sequence

EEKTVQTGKTDQQVGAKLVQEIREGKRGPLYAGYFRTWHDRASTGIDGKQQHPENTMAEVPKEVDILFVFHDHTASDSPFWSELKDSYVHKLHQQGTALVQTIGVNELNGRTGLSKDYPDTPEGNKALAAAIVKAFVTDRGVDGLDIDIEHEFTNKRTPEEDARALNVFKEIAQLIGKNGSDKSKLLIMDTTLSVENNPIFKGIAEDLDYLLRQYYGSQGGEAEVDTINSDWNQYQNYIDASQFMIGFSFFEESASKGNLWFDVNEYDPNNPEKGKDIEGTRAKKYAEWQPSTGGLKAGIFSYAIDRDGVAHVPSTYKNRTSTNLQRHEVDNISHTDYTVSRKLKTLMTEDKRYDVIDQKDIPDPALREQIIQQVGQYKGDLERYNKTLVLTGDKIQNLKGLEKLSKLQKLELRQLSNVKEITPELLPESMKKDAELVMVGMTGLEKLNLSGLNRQTLDGIDVNSITHLTSFDISHNSLDLSEKSEDRKLLMTLMEQVSNHQKITVKNTAFENQKPKGYYPQTYDTKEGHYDVDNAEHDILTDFVFGTVTKRNTFIGDEEAFAIYKEGAVDGRQYVSKDYTYEAFRKDYKGYKVHLTASNLGETVTSKVTATTDETYLVDVSDGEKVVHHMKLNIGSGAIMMENLAKGAKVIGTSGDFEQAKKIFDGEKSDRFFTWGQTNWIAFDLGEINLAKEWRLFNAETNTEIKTDSSLNVAKGRLQILKDTTIDLEKMDIKNRKEYLSNDENWTDVAQMDDAKAIFNSKLSNVLSRYWRFCVDGGASSYYPQYTELQILGQRLSNDVANTLKD

Molecular Weight

Approximately 95 kDa

Purity
  • Greater than 90% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of 50 mM Tris-HCL, 300 mM NaCl, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

Endo S2 Protein, S. pyogenes (His) Related Classifications

Help & FAQs
  • How should lyophilized recombinant proteins be reconstituted and stored?

    1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss. 2. Taking 10 μg as an example, first add 20 μL of reconstituted solution provided by MCE and use a pipette to gently resuspend the lyophilized protein until it is fully dissolved.. (For most proteins, the reconstitution solution we provide is sterile water. If a diluent other than water is required, it will be indicated in the product's Certificate of Analysis (COA).). 3. Add an additional 80 μL of buffer/culture medium containing carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% trehalose), and then use a pipette to gently mix until uniform. The final concentration is should not be lower than 100 μg/mL. 4. Aliquot at least 20 μL per tube. 5. After aliquoting, store it frozen at a temperature ranging from -20ºC to -80ºC, and it can be preserved for 3 to 6 months.

  • How should solution-form recombinant proteins be stored?

    1. The product can be stored in its original form and diluted as needed upon use. 2. Alternatively, dilute with a buffer/culture medium containing a carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% alginate), mix well by pipetting, and ensure that

  • Why is it necessary to add carrier proteins?

    Carrier proteins are commonly added to enhance the stability of recombinant proteins, preventing them from adhering to the walls of the container during freezing or thawing processes. Plastic tubes have a certain adsorptive capacity for proteins, which may lead to difficulty in separating the protein from the tube walls, resulting in a decrease in the actual concentration of the protein in the solution and thus affecting its activity. To minimize such losses, it is recommended to add a commonly used carrier protein solution prior to the long-term storage of recombinant protein products.

  • Carrier protein types and options?

    In cases where the carrier protein is not expected to influence the experimental outcomes, an appropriate carrier protein, such as 0.1% BSA (Bovine Serum Albumin), 5% HSA (Human Serum Albumin), 10% FBS (Fetal Bovine Serum), or 5% trehalose, can be incorpo

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
Endo S2 Protein, S. pyogenes (His)
Cat. No.:
HY-P79064
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