Kallikrein-1 Protein, Human (HEK293, His, solution)

Customer Review

Based on 1 Customer Validation

Kallikrein-1 protein cleaves bonds in kininogen to release Lys-bradykinin. It also cleaves Neisseria meningitidis NHBA in saliva during microbial infection.Kallikrein-1 Protein, Human (HEK293, His, solution) is the recombinant human-derived Kallikrein-1 protein, expressed by HEK293 , with C-His labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • 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

Kallikrein-1 protein cleaves bonds in kininogen to release Lys-bradykinin. It also cleaves Neisseria meningitidis NHBA in saliva during microbial infection.Kallikrein-1 Protein, Human (HEK293, His, solution) is the recombinant human-derived Kallikrein-1 protein, expressed by HEK293 , with C-His labeled tag.

Background

Kallikrein-1 protein functions by cleaving Met-Lys and Arg-Ser bonds in kininogen, leading to the release of Lys-bradykinin. In the context of microbial infection, it plays a role in cleaving Neisseria meningitidis NHBA in saliva, with Neisseria being an obligate commensal of the nasopharyngeal mucosa.

Verified Bioactivity

Measured by its ability to cleave a flourogenic peptide substrate Pro-Phe-Arg-7-amido-4-methylcoumarin (PFR-AMC). The specific activity is >1,500 pmoles/min/μg. (Activation description: The proenzyme needs to be activated by Thermolysin for an activated form)

MCE Validation Data

  • Purity - SDS-PAGE

    Purity - SDS-PAGE

    ≥ 95%, as determined by reducing SDS-PAGE.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag C-His
  • Accession
  • Gene ID
  • Protein Length

    Full Length of Kallikrein-1 Chain

  • Synonyms

    KLK1; Kallikrein 1, Renal/Pancreas/Salivary, Isoform CRA_c; Kallikrein 1; Kallikrein 1, Renal/Pancreas/Salivary, Isoform CRA_a; Klk6; Kallikrein 1 Isoform 3 Preproprotein; Kidney/Pancreas/Salivary Gland Kallikrein; Kallikrein Serine Protease 1; Kallikrein

  • AA Sequence

    SRIVGGWECEQHSQPWQAALYHFSTFQCGGILVHRQWVLTAAHCISDNYQLWLGRHNLFDDENTAQFVHVSESFPHPGFNMSLLENHTRQADEDYSHDLMLLRLTEPADTITDAVKVVELPTQEPEVGSTCLASGWGSIEPENFSFPDDLQCVDLKILPNDECKKVHVQKVTDFMLCVGHLEGGKDTCVGDSGGPLMCDGVLQGVTSWGYVPCGTPNKPSVAVRVLSYVKWIEDTIAENS

  • Predicted Molecular Mass

    28 kDa

  • Molecular Weight

    Approximately 50 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Glycosylation

    Yes

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE. ≥ 95%, as determined by HPLC.

Product Properties

Appearance

Solution

Formulation

Supplied as a 0.22 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

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)
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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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