Cystatin B/CSTB Protein, Mouse (His)

Cystatin B/CSTB Protein, an intracellular thiol proteinase inhibitor, crucially regulates proteolytic activities within the cell. By inhibiting thiol proteinases, Cystatin B maintains the balance of proteolytic processes, emphasizing its significance in cellular homeostasis. Its inhibitory function underscores involvement in cellular processes requiring precise regulation of proteolytic activity for normal cellular function and integrity. Cystatin B/CSTB Protein, Mouse (His) is the recombinant mouse-derived Cystatin B/CSTB protein, expressed by E. coli , with N-6*His labeled tag.

For research use only. We do not sell to patients.
  • Species: Mouse
  • Source: E. coli
  • Storage:
    Stored at -20°C for 2 years from date of receipt. 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.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

Cystatin B/CSTB Protein, an intracellular thiol proteinase inhibitor, crucially regulates proteolytic activities within the cell. By inhibiting thiol proteinases, Cystatin B maintains the balance of proteolytic processes, emphasizing its significance in cellular homeostasis. Its inhibitory function underscores involvement in cellular processes requiring precise regulation of proteolytic activity for normal cellular function and integrity. Cystatin B/CSTB Protein, Mouse (His) is the recombinant mouse-derived Cystatin B/CSTB protein, expressed by E. coli , with N-6*His labeled tag.

Background

Cystatin B/CSTB Protein functions as an intracellular thiol proteinase inhibitor. With its role in inhibiting thiol proteinases, this protein contributes to the regulation of intracellular proteolytic activities. By modulating the activity of thiol proteinases, Cystatin B plays a crucial role in maintaining the balance of proteolytic processes within the cell, highlighting its significance in cellular homeostasis. The inhibitory function of Cystatin B against thiol proteinases underscores its involvement in cellular processes where precise regulation of proteolytic activity is essential for normal cellular function and integrity.

Technical Parameters

  • Species Mouse
  • Source E. coli
  • Tag N-6*His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • 6*His
    • CSTB (M1-F98)
      Accession # Q62426
    • C-term
  • Protein Length

    Full Length

  • Synonyms

    CSTB; Cystatin B (Stefin B); Prev. STFB; CPI-B; Prev. EPM1; Epididymis Secretory Sperm Binding Protein; CST6; Epilepsy, Progressive Myoclonic 1; Cystatin-B; Stefin B; PME; EPM1A; Liver Thiol Proteinase Inhibitor; ULD; Cystatin B; Stefin-B

  • AA Sequence

    MMCGAPSATMPATAETQEVADQVKSQLESKENQKFDVFKAISFKRQIVAGTNLFIKVDVGGDKCVHLRVFQPLPHENKPLTLSSYQTNKERHDELSYF

  • Predicted Molecular Mass

    13.3 kDa

  • Molecular Weight

    Approximately 15 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

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

Product Properties

Appearance

Lyophilized powder.

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 from date of receipt. 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.

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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