7α‐HSDH Protein, E.coli (His, Strep)

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7α‐HSDH Protein, E.coli (His, Strep) is the recombinant E.coli-derived 7α‐HSDH protein, expressed by E. coli, with Strep & His tag.

For research use only. We do not sell to patients.
  • Species: E.coli
  • 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

7α‐HSDH Protein, E.coli (His, Strep) is the recombinant E.coli-derived 7α‐HSDH protein, expressed by E. coli, with Strep & His tag.

Background

7α-HSDH is a 7alpha-hydroxysteroid dehydrogenase involved in bile acid metabolism. It catalyzes the NAD(+)-dependent oxidation of the 7alpha-hydroxy group of 7alpha-hydroxysteroids, such as the major human bile acids cholate and chenodeoxycholate, to the corresponding 7-oxosteroids. It can also act, though less efficiently, on taurochenodeoxycholate, taurocholate, and glycocholate. By similar function, it can use glycochenodeoxycholate as a substrate but cannot utilize NADP(+) instead of NAD(+) as the electron acceptor.

Technical Parameters

  • Species E.coli
  • Source E. coli
  • Tag Strep;His
  • Accession
  • Gene ID
  • Protein Length

    Partial

  • Synonyms

    7alpha-hydroxysteroid dehydrogenase; EC:1.1.1.159; 7alpha-HSDH; NAD-dependent 7alpha-hydroxysteroid dehydrogenase; hsdH; hdhA; b1619; JW1611

  • AA Sequence

    FNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN

  • Predicted Molecular Mass

    29.8 kDa

  • Molecular Weight

    Approximately 29 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

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

Product Properties

Appearance

Solution.

Formulation

Supplied as a 0.22 μm filtered solution of 50 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5% glycerol.

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

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

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

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