For research use only.

Catalog No.S7391 Synonyms: (1S)-Z-FA-FMK

7 publications

Z-FA-FMK Chemical Structure

CAS No. 197855-65-5

Z-FA-FMK ((1S)-Z-FA-FMK) is an irreversible cysteine protease inhibitor, and also inhibits effector caspases.

Selleck's Z-FA-FMK has been cited by 7 publications

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Choose Selective Cysteine Protease Inhibitors

Biological Activity

Description Z-FA-FMK ((1S)-Z-FA-FMK) is an irreversible cysteine protease inhibitor, and also inhibits effector caspases.
cysteine protease [1]
In vitro

Z-FA-FMK inhibits the degradation of fibrillar collagen by fibroblasts and osteoclasts. [2] Z-FA-FMK inhibits LPS-induced cytokine production via inhibition of NF-kappaB-dependent gene expression in macrophages. [3] Z-FA-FMK efficiently blocks T cell proliferation induced by mitogens and IL-2 in vitro. [4]

In vivo Z-FA-FMK significantly increases pneumococcal growth in both lungs and blood in a mouse model of intranasal pneumococcal infection. [4] Z-FA-FMK blocks reovirus infection of Ras oncogenic tumours and host heart tissues in severe combined immunodeficiency mice. [5]


Cell Research:[4]
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  • Cell lines: PBMCs
  • Concentrations: ~100 μM
  • Incubation Time: 72 hours
  • Method: T cell proliferation following mitogen stimulation is determined using [3H]thymidine incorporation. In brief, PBMCs or purified T cells are seeded in a 96-well plate and stimulated with either PHA (5 μg/ml), costimulated with anti-CD3 mAb (5 μg/ml) and anti-CD28 mAb (2.5 μg/ml) or PMA plus ionomycin in the presence or absence of z-FA-FMK. The cells are cultured for 72 h with the last 16 h pulsed with [methyl-3H]thymidine (0.037 MBq). The cells are harvested onto glass fiber filter mats using a Tomtec automated multiwell harvester.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 77 mg/mL (199.26 mM)
Water Insoluble
Ethanol '34 mg/mL warmed

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 386.42

C21 H23 F N2 O4

CAS No. 197855-65-5
Storage powder
in solvent
Synonyms (1S)-Z-FA-FMK
Smiles CC(C(=O)CF)NC(=O)C(CC1=CC=CC=C1)NC(=O)OCC2=CC=CC=C2

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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID