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Availability: In stock

Dansyl-Gly-Cys-Val-Leu-Ser-OH

M-2605

Product No. Pack Size Available ADS InfoAnalytical Data Sheet Unit Price Online Order Price Qty
M-2605.0001 1 mg Ships within 1 business day ADSExemplary Data Sheet of a current available lot.
CHF 206.00
CHF 191.58 (7%)
M-2605.0005 5 mg Ships within 1 business day ADSExemplary Data Sheet of a current available lot.
CHF 824.00
CHF 766.32 (7%)
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Details

Fluorogenic substrate for farnesyl diphosphate farnesyltransferase (FTase). The pentapeptide is based on the C-terminal region of H-Ras with a dansyl group attached to the N-terminus. Due to farnesylation of the cysteine thiol group the dansyl group is placed from a polar to a non-polar molecular environment which is accompanied by an enhancement of fluorescence and a shift to a lower wavelength emission maximum of the dansyl group. Complete conversion of the product results in a decrease of the emission maximum wavelength from 565 nm to 515 nm together with a 13-fold enhancement in fluorescence intensity at 505 nm. Dansyl-GCVLS can be used for continuously monitoring FTase activity in the presence of farnesyl diphosphate (FPP) at 505 nm using an excitation wavelength of 340 nm (kcat = 0.5 s⁻¹; Km = 1.4 µM). It represents a useful tool for screening potential FTase inhibitors. The substrate is highly specific to FTase and is not recognized by geranylgeranyl transferse type I (GGTase I).
Concentrations of stock solutions of Dns-GCVLS can be calculated from the extinction coefficient of the dansyl moiety (ε₃₄₀ = 4250 M⁻¹cm⁻¹ in 20 mM Tris-HCl, pH 7.5, 10 mM EDTA).
Item Number 4037632
One Letter Code Dns- GCVLS
Synonyms Dansyl-GCVLS
Molecular Formula C₃₁H₄₆N₆O₉S₂
Relative Molecular Mass 710.87
CAS Registry Number [143744-88-1]
Source Synthetic
Storage Conditions -20 ± 5 °C

M-2605

Enzyme Substrates Inhibitors
Farnesyl-Diphosphate Farnesyltransferase