HELPY Protein, Helicobacter pylori (T380A)

HpGT Protein, Helicobacter pylori is a glutathione-degrading enzyme that is a virulence factor in infection. Glutathione hydrolase proenzyme belongs to the gamma-glutamyltransferase family. pylorigamma-glutamyltranspeptidase is expressed as a 60-kDa inactive precursor that must undergo autocatalytic processing to generate a 40-kDa/20-kDa heterodimer with full gamma-glutamyl amide bond hydrolase activity. HELPY Protein, Helicobacter pylori (T380A) is the recombinant HpGT protein, expressed by E. coli , with tag free.

For research use only. We do not sell to patients.
  • Species: Others
  • Source: E. coli
  • Storage:
    Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

HpGT Protein, Helicobacter pylori is a glutathione-degrading enzyme that is a virulence factor in infection. Glutathione hydrolase proenzyme belongs to the gamma-glutamyltransferase family. pylorigamma-glutamyltranspeptidase is expressed as a 60-kDa inactive precursor that must undergo autocatalytic processing to generate a 40-kDa/20-kDa heterodimer with full gamma-glutamyl amide bond hydrolase activity[1][2]. HELPY Protein, Helicobacter pylori (T380A) is the recombinant HpGT protein, expressed by E. coli , with tag free.

Background

pylorigamma-glutamyltranspeptidase (HpGT) is expressed as a 60-kDa inactive precursor that must undergo autocatalytic processing to generate a 40-kDa/20-kDa heterodimer with full gamma-glutamyl amide bond hydrolase activity. The resultant N terminus, Thr-380, has been shown to be the catalytic nucleophile in both the autoprocessing and enzymatic reactions. HpGT is a member of the N-terminal nucleophile hydrolase superfamily. HpGT has also been shown to up-regulate COX-2 and epidermal growth factor-related peptides in human gastric mucosal cells and to induce apoptosis in human gastric epithelial cells[1].
Helicobacter pylori γ-glutamyltranspeptidase (HpGT)  catalyzes the first step in glutathione degradation, removing glutamate from the tripeptide and its conjugates via a γ-glutamylenzyme intermediate. The γ-glutamyl group can be transferred to water (hydrolysis) or an amino acid or short peptide (transpeptidation)[2].

Technical Parameters

  • Species Others
  • Source E. coli
  • Tag Tag Free
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • HpGT (S25-F567, T380A)
      Accession # O25743
    • C-term
  • Protein Length

    Full Length of Mature Protein

  • Synonyms

    Glutathione hydrolase proenzyme; EC:2.3.2.2; EC:3.4.19.13; Glutathione hydrolase large chain; Glutathione hydrolase small chain; HP_1118

  • AA Sequence

    SAASYPPIKNTKVGLALSSHPLASEIGQKVLEEGGNAIDAAVAIGFALAVVHPAAGNIGGGGFAVIHLANGENVALDFREKAPLKATKNMFLDKQGNVVPKLSEDGYLAAGVPGTVAGMEAMLKKYGTKKLSQLIDPAIKLAENGYAISQRQAETLKEARERFLKYSSSKKYFFKKGHLDYQEGDLFVQKDLAKTLNQIKTLGAKGFYQGQVAELIEKDMKKNGGIITKEDLASYNVKWRKPVVGSYRGYKIISMSPPSSGGTHLIQILNVMENADLSALGYGASKNIHIAAEAMRQAYADRSVYMGDADFVSVPVDKLINKAYAKKIFDTIQPDTVTPSSQIKPGMGQLHEGSNATHYSVADRWGNAVSVTYTINASYGSAASIDGAGFLLNNEMDDFSIKPGNPNLYGLVGGDANAIEANKRPLSSMSPTIVLKNNKVFLVVGSPGGSRIITTVLQVISNVIDYNMNISEAVSAPRFHMQWLPDELRIEKFGMPADVKDNLTKMGYQIVTKPVMGDVNAIQVLPKTKGSVFYGSTDPRKEF

  • Purity

    ≥ 90%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Solution.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

Please use rapid thawing with running water to thaw the protein.

Storage & Stability

Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Calculators

Reconstitution Calculator

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

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=
Mass (in vial) Mass (in vial)
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Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

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

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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