187389-52-2 Usage
Description
Z-VAD-FMK (187389-52-2), cell-permeable, methyl ester form. Potent, irreversible pan-caspase inhibitor. Inhibits caspase activity and apoptosis induction in a variety of cell types (IC50 = 1.5 μM). Active in vivo.
Uses
Different sources of media describe the Uses of 187389-52-2 differently. You can refer to the following data:
1. Z-VAD(OMe)-FMK is a cell-permeable, competitive, and irreversible inhibitor of all caspases. Through this action, it inhibits cleavage of poly(ADP-ribose) polymerase, preventing apoptosis when used at 10-50 μM. It also blocks caspase-mediated apoptosis in vivo. Z-VAD(OMe)-FMK effectively prevents caspase action in inflammasomes.[Cayman Chemical]
2. Z-VAD-FMK is a caspase inhibitor that inhibits apoptosis and caspase processing in Jurkat T cells treated with low concentrations of z-FA-CMK.
General Description
A cell-permeable, irreversible, pan-caspase inhibitor. Shown to enhance the freeze-thaw survival of human embryonic stem cells. Inhibits Fas-mediated apoptosis in Jurkat T cells. Also reported to inhibit Peptide: N-glycanse (PNGase) in vitro amd in vivo. When using with a purified recombinant enzyme, pretreatment with an esterase is required.
Biological Activity
Cell-permeable, irreversible pan-caspase inhibitor. Inhibits caspase processing and apoptosis induction in tumor cells in vitro (IC 50 = 0.0015-5.8 mM). Active in vivo .
Biochem/physiol Actions
Cell permeable: yes
Enzyme inhibitor
This tripeptide halomethyl ketone (FWfree-acid = 467.49 g/mol; Soluble to
9.35 mg/ml in DMSO; CAS RegistryNumber = 187389-52-2), also known
as Z-VAD-FMK and caspase inhibitor VI, is a broad-spectrum caspase
inhibitor that blocks caspase-mediated apoptosis. Z-VAD-FMK inhibits
caspase processing (IC50 = 0.0015–5.8 mM, depending on enzyme and cell
type). The aspartate methyl ester derivative (FW = 467.49 g/mol), also
known as caspase inhibitor I, is far more cell-permeable. Target (s) :
caspases; caspase-1; caspase-2; caspase-3; caspase-4
; caspase 5; caspase-6; caspase-7; caspase-8 ;
caspase-9; caspase-10.
References
1) Slee et al. (1996), Benzyloxycarbonyl-Val-Ala-ASP (OMe) fluoromethylketone (Z-VAD-FMK) inhibits apoptosis by blocking the processing of CPP32; Biochem. J., 315 21
2) Kunstle et al. (1997), ICE-protease inhibitors block murine liver injury and apoptosis caused by CD95 or by TNF-alpha; Immunol. Lett., 55 5
3) Garcia-Calvo et al. (1998), Inhibition of human caspases by peptide based and macromolecular inhibitors; J. Biol. Chem., 273 32608
Check Digit Verification of cas no
The CAS Registry Mumber 187389-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,3,8 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 187389-52:
(8*1)+(7*8)+(6*7)+(5*3)+(4*8)+(3*9)+(2*5)+(1*2)=192
192 % 10 = 2
So 187389-52-2 is a valid CAS Registry Number.
InChI:InChI=1/C22H30FN3O7/c1-13(2)19(26-22(31)33-12-15-8-6-5-7-9-15)21(30)24-14(3)20(29)25-16(17(27)11-23)10-18(28)32-4/h5-9,13-14,16,19H,10-12H2,1-4H3,(H,24,30)(H,25,29)(H,26,31)/t14-,16-,19-/m0/s1
187389-52-2Relevant articles and documents
An improved method for the incorporation of fluoromethyl ketones into solid phase peptide synthesis techniques
Diffley, John F. X.,Joshi, Dhira,Milligan, Jennifer C.,O'Reilly, Nicola,Papageorgiou, George,Zeisner, Theresa U.
, p. 20457 - 20464 (2021/06/26)
An improved and expedient technique for the synthesis of peptidyl-fluoromethyl ketones is described. The methodology is based on prior coupling of an aspartate fluoromethyl ketone to a linker and mounting it onto resin-bound methylbenzhydrylamine hydrochloride. Subsequently, by utilising standard Fmoc peptide procedures, a number of short Z-protected peptides were synthesised and assessed as possible inhibitors of the main protease from SARS-CoV-2 (3CLpro).
