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Caspase-4 is a member of the caspase family of cysteine proteases. It exists in cells as an inactive pro-enzyme. The pro-enzyme is matured by proteolysis to yield large and small subunits. The active enzyme is a heterotetramer consisting of two large and two small subunits. The expressed caspase-4 spontaneously undergoes auto-processing to yield subunits characteristic of the native enzyme. The active caspase-4 is routinely tested for its ability to enzymatically cleave the substrate WEHD-AFC or WEHD-pNA.
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RUO – Research Use Only |
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| Alternative Name | Angiotensin-converting enzyme 1, CD143 |
|---|---|
| Purity | ≥95% (SDS-PAGE) |
| Source | Produced in NSO cells. |
| Alternative Name | TACE, A disintegrin and metalloproteinase 17, Tumor necrosis factor-α-converting enzyme |
|---|---|
| Purity | ≥90% (SDS-PAGE) |
| Source | Produced in insect cells. Produced in a baculovirus expression system. |
| Alternative Name | β-Secretase 2, β-Site APP-cleaving enzyme 2, Memapsin-1, ASP-1 |
|---|---|
| Purity | ≥80% (SDS-PAGE) |
| Source | Produced in insect cells. Recombinant soluble BACE2, cloned from human cDNA, secreted as zymogen from insect cells, purified using a C-terminal His-tag, and cleaved to the mature active form. Produced in a baculovirus expression system. |
| Alternative Name | Interleukin 1β converting enzyme, IL-1β converting enzyme, ICE |
|---|---|
| Purity | ≥90% (SDS-PAGE) |
| Source | Produced in E. coli. cDNA encodes residues identical to Asn120-His404 (C-terminus) at Genbank Accession No. M87507, except for an Asp381 to Glu change, introduced to stabilize the enzyme against autoproteolysis. |