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K777

SKU: orb1707146

Description

K777 is a potent, orally available irreversible cysteine protease inhibitor targeting cruzain and cathepsins B/L. It also inhibits CYP3A4 and CCR4, and it blocks the cellular entry of pseudoviruses like EBOV and SARS-CoV in vitro, supporting research in parasitology and virology.

Research Area

Immunology & Inflammation, Infectious Disease & Virology, Metabolism Research, Pharmacology & Drug Discovery, Protein Biochemistry

Images & Validation

Key Properties

CAS Number233277-99-1
MW574.73
Purity99.14%
FormulaC32H38N4O4S
SMILESCN1CCN(CC1)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CCc1ccccc1)\C=C\S(=O)(=O)c1ccccc1
TargetSARS-CoV,Virus Protease,Parasite,Cysteine Protease,CCR,Cytochromes P450
SolubilityDMSO:90 mg/mL (156.6 mM);10% DMSO+40% PEG300+5% Tween 80+45% Saline:3.3 mg/mL (5.74 mM)

Bioactivity

Target IC50
CYP3A4:60 nM (IC50)
In Vivo
In C57BL/6 IFN-γR-KO mice, K777 ( 35-105 mg/kg; p.o.) rescues mice from otherwise lethal infections.
In Vitro
K777 is a broad-spectrum antiviral and inhibits SARS-CoV, HCoV-229E, NL63, MERS-CoV, EBOV, SUDV, TAFV, RESTV, BEBOV, MARV and Nipah pseudovirus entry with IC50 values of 0.68 nM, 1.48 nM, 6.78 nM, 46.12 nM, 0.87 nM, 1.14 nM, 2.26 nM, 3.37 nM, 5.91 nM, 1.9 nM and 0.42 nM, respectively. K777 alone demonstrates up to 70% inhibition of 229E-S-mediated transduction in TMPRSS2 expressing cells. Simultaneous treatment with Camostat and K777 increases inhibition to ~ 90%. K777 inhibits both CCL17 binding and CCL17-induced chemotaxis in Hut78 cells with IC50s of 57 and 8.9 nM, respectively. The K777-mediated inhibition of chemotaxis is potent even in the presence of a 10-fold higher concentration of CCL17. K777 induces CCR4 internalization with a 50% reduction of cell surface CCR4.

Storage & Handling

StoragePowder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature.
Expiration Date12 months from date of receipt.
DisclaimerFor research use only

Alternative Names

K777, K-777, K 777, CCR4, Cysteine Protease, Cysteine protease, CysteineProtease, CYP3A4, APC3316, APC-3316, APC 3316
Quality Guarantee

Quality Guarantee

Explore bioreagents carefree to elevate your research. All our products are rigorously tested for performance. If a product does not perform as described on its datasheet, our scientific support team will provide expert troubleshooting, a prompt replacement, or a refund. For full details, please see our Terms & Conditions and Buying Guide. Contact us at support@biorbyt.com.

Key Properties

No computed properties available.

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Protocol Information

K777 (orb1707146)

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% DMSO +
%+
% Tween 80 +
%

Available Sizes

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1 mg
$ 120.00
5 mg
$ 230.00
10 mg
$ 340.00
1 ml x 10 mM (in DMSO)
$ 480.00
25 mg
$ 540.00
50 mg
$ 770.00
DispatchUsually dispatched within 3-5 working days
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