CA 074

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Description: Selective cathepsin B inhibitor
Chemical Name: N-[[(2S,3S)-3-[(Propylamino)carbonyl]-2-oxiranyl]carbonyl]-L-isoleucyl-L-proline
Purity: ≥98% (HPLC)
Citations (3)

Biological Activity for CA 074

CA 074 is an inhibitor of cathepsin B (Ki = 2-5 nM). Displays selectivity over cathepsins H and L (Ki = 40-200 μM). Shown to reduce bone metastasis in a 4T1.2 breast cancer model.

Technical Data for CA 074

M. Wt 383.44
Formula C18H29N3O6
Storage Store at -20°C
Purity ≥98% (HPLC)
CAS Number 134448-10-5
PubChem ID 9821383
Smiles O=[C@](NCCC)[C@H]1O[C@@H]1[C@@](N[C@@H]([C@@H](C)CC)[C@](N2[C@H](C(O)=O)CCC2)=O)=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for CA 074

Solvent Max Conc. mg/mL Max Conc. mM
ethanol 7.67 20

Preparing Stock Solutions for CA 074

The following data is based on the product molecular weight 383.44. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
0.2 mM 13.04 mL 65.2 mL 130.4 mL
1 mM 2.61 mL 13.04 mL 26.08 mL
2 mM 1.3 mL 6.52 mL 13.04 mL
10 mM 0.26 mL 1.3 mL 2.61 mL

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Product Datasheets for CA 074

Certificate of Analysis / Product Datasheet
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References for CA 074

References are publications that support the biological activity of the product.

Gillet et al (2009) Voltage-gated sodium channel activity promotes cysteine cathepsin-dependent invasiveness and colony growth of human cancer cells. J.Biol.Chem. 284 8680 PMID: 19176528

Towatari et al (1991) Novel epoxysuccinyl peptides. A selective inhibitor of cathepsin B, in vivo. FEBS Lett. 280 311 PMID: 2013329

Withana et al (2012) Cathepsin B inhibition limits bone metastasis in breast cancer. Cancer Res. 72 1199 PMID: 22266111

If you know of a relevant reference for CA 074, please let us know.

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Keywords: CA 074, CA 074 supplier, CA074, cathepsin, B, selective, inhibitors, inhibits, cysteine, proteases, Cathepsin, Calcium-Sensitive, Proteases, 4863, Tocris Bioscience

3 Citations for CA 074

Citations are publications that use Tocris products. Selected citations for CA 074 include:

Li et al (2018) C. elegans-based screen identifies lysosome-damaging alkaloids that induce STAT3-dependent lysosomal cell death. Protein Cell 9 1013 PMID: 29611115

Hong et al (2022) LIF, a mitogen for choroidal endothelial cells, protects the choriocapillaris: implications for prevention of geographic atrophy. EMBO Mol Med 14 e14511 PMID: 34779136

Eric et al (2019) Loss of Sirtuin 1 Alters the Secretome of Breast Cancer Cells by Impairing Lysosomal Integrity. Dev Cell 49 393-408.e7 PMID: 30982660

Do you know of a great paper that uses CA 074 from Tocris? Please let us know.

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