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Key Documents

C1480

Sigma-Aldrich

Z-Phe-Ala fluoromethyl ketone

≥90% (TLC), powder

Synonym(s):

Z-FA-FMK

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About This Item

Linear Formula:
C21H23N2O4F
Molecular Weight:
386.42
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.77

Quality Level

Assay

≥90% (TLC)

form

powder

color

white to off-white

solubility

DMSO or DMF: 20 mM

shipped in

dry ice

storage temp.

−20°C

SMILES string

C[C@H](NC(=O)[C@H](Cc1ccccc1)NC(=O)OCc2ccccc2)C(=O)CF

InChI

1S/C21H23FN2O4/c1-15(19(25)13-22)23-20(26)18(12-16-8-4-2-5-9-16)24-21(27)28-14-17-10-6-3-7-11-17/h2-11,15,18H,12-14H2,1H3,(H,23,26)(H,24,27)/t15-,18-/m0/s1

InChI key

ASXVEBPEZMSPHB-YJBOKZPZSA-N

Application

Z-Phe-Ala fluoromethyl ketone (Z-FA-FMK) has been used as a:
  • cathepsin inhibitor to study its effects on dendritic cells
  • papain-like cysteine protease inhibitor to study its effects on cadmium-induced mitochondrial apoptosis
  • cysteine protease inhibitor to study its effects on the interaction of toll-like receptor 9 (TLR9) with granulin in RAW macrophages

Biochem/physiol Actions

Z-Phe-Ala fluoromethyl ketone (Z-FA-FMK) is an inhibitor of cysteine proteases, such as cathepsin B and L. It can also inhibit recombinant effector caspases 2, -3, -6, and -7 and not initiator caspases 8 and -10. Z-FA-FMK plays a role in blocking nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) transactivation. It exhibits therapeutic effects against rheumatoid arthritis.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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The cathepsin B inhibitor, z-FA-FMK, inhibits human T cell proliferation in vitro and modulates host response to pneumococcal infection in vivo
Lawrence C P, et al.
Journal of Immunology, 177(6), 3827-3836 (2006)
Transcription factor E3 protects against cadmium-induced apoptosis by maintaining the lysosomal-mitochondrial axis but not autophagic flux in Neuro-2a cells
Pi H, et al.
Toxicology Letters, 295(4), 335-350 (2018)
Sortase-mediated modification of $\alpha$DEC205 affords optimization of antigen presentation and immunization against a set of viral epitopes
Swee L K, et al.
Proceedings of the National Academy of Sciences, 110(4), 1428-1433 (2013)
Z-FA-fmk Inhibits Effector Caspases but not Initiator Caspases 8 and 10, and Demonstrates That Novel Anticancer Retinoid-related Molecules Induce Apoptosis via the Intrinsic Pathway1
Lopez-Hernandez F J, et al.
Molecular Cancer Therapeutics, 2(3), 255-263 (2003)
Granulin is a soluble cofactor for toll-like receptor 9 signaling
Park B, et al.
Immunity, 34(4), 505-513 (2011)

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