Caspase-1 Recombinant Protein


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Caspase-1 Recombinant Protein Summary

A recombinant protein corresponding to Human Caspase-1

Source: E. coli.

Amino Acid Sequence: The amino acid sequence of this product is not available.
E. coli
Details of Functionality
> 5000 units/mg

Packaging, Storage & Formulations

Store at -80C. Avoid freeze-thaw cycles.
Reconstitution Instructions
Reconstitute with PBS containing 15% glycerol to a final concentration of 1 unit per ul.


Application Notes
Unit Definition: One unit of the recombinant caspase-1 is the enzyme activity that cleaves 1 nmol of the caspase substrate YVAD-pNA (pNA: pnitroanaline) per hour at 37C in a reaction solution containing 50 mM Hepes pH 7.2 50 mM NaCl 0.1% Chaps 10 mM EDTA 5% Glycerol and 10 mM DTT.
Molecular Weight: large (20 kD) and small (10 kD) subunitsk

Alternate Names for Caspase-1 Recombinant Protein

  • CASP1
  • CASP-1
  • caspase 1, apoptosis-related cysteine peptidase (interleukin 1, beta
  • caspase 1, apoptosis-related cysteine protease (interleukin 1, beta
  • Caspase1
  • caspase-1
  • EC 3.4.22
  • EC
  • ICE
  • ICEP45
  • IL-1 beta-converting enzyme
  • IL1BC CASP1 nirs variant 1
  • IL-1BC
  • IL1BCE
  • IL1B-convertase
  • interleukin 1-B converting enzyme
  • interleukin 1-beta convertase
  • Interleukin-1 beta convertase
  • Interleukin-1 beta-converting enzyme
  • p45


Caspase-1 (also know as ICE) is a prototypical member of the caspase-family of cysteine proteases. Caspase-1 exists in cells as an inactive 45 kDa proenzyme. The pro-enzyme is matured by proteolysis to yield large (20 kD) and small (10 kD) subunits. The active caspase-1 is a heterotetramer consisting of two large and two small subunits. To date the regulatory mechanism of caspase-1 activation and the role of caspase-1 in apoptosis are poorly understood. In THP-1 cells, a large proportion of the caspase-1 is present in the inactive proenzyme form. The recombinant active human caspase-1 was expressed in E. coli. The active caspase-1 preferentially cleaves caspase-1 substrates (e.g., YVAD-AFC or YVAD-pNA) and is routinely tested at for its ability to enzymatically cleave these two substrates Ac-YVAD-pNA (Cat. #1104-200) or Ac-YVAD-AFC (1103-200). The rh-Caspase has an N-term His-tag and corresponds to amino acids 120-404 of Caspase-1, gene accession# NP_150634.1.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Caspase 7 - A key effector of the apoptotic pathway
Caspase-7 is an effector caspase with important roles in mediating cell death signaling. As an effector caspase, caspase-7 is cleaved and activated by initiator caspases such as caspase-1 (1). Like other caspase family proteins, caspase-7 contains a...  Read full blog post.

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Caspase-1 is an enzyme involved in the conversion of interleukin-1 into its active secreted form. Interleukin-1 mediates inflammatory responses during infection and disease. Caspase-1 is recruited to and activated by the inflammasome complex (1). Un...  Read full blog post.

Caspase-4 - a human protease with roles in inflammation and immunity
Caspases are a family of cysteine-aspartic acid proteases that cleave caspase proenzymes as well as other protein substrates. Caspases are well known for their role in apoptosis, but they also play a significant role in other cellular processes inc...  Read full blog post.

Contact Information

Product PDFs


Gene Symbol CASP1

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