A fluorogenic, succinylated peptide substrate for Sirtuin 5. This substrate should be used in conjunction with SIRT Developer, #50089. Optimal excitation wavelength 350-380 nm, emission wavelength 440-460 nm.

Q9NXA8

SIRT5

>90% by HPLC

DMSO solution (50 µl @ 5 mM)

DMSO solution

ASSAY PROTOCOL:

Materials: SIRT Assay Buffer (BPS # 50090) SIRT5 Substrate (# 50126) SIRT5 enzyme (# 50016) or other SIRT5-containing sample NUNC black 96-well plate, low protein binding (VWR #62408-936). SIRT Assay Developer (BPS # 50089)

Step 1: Set up 50 μl of Sirt5 reactions containing SIRT assay buffer, 400 ng SIRT5 enzyme, and 20 μM SIRT5 substrate in the 96-well plate. Incubate at 37ºC for 30 min.

Step 2: Add 50 μl of SIRT Assay Developer (2x) (BPS #50089) to each well and incubate the plate at room temperature for 15 min.

Step 3: Read sample in a microtiter-plate reading fluorimeter capable of excitation at a wavelength in the range 350-380 nm and detection of emitted light in the range 440-460 nm. “Blank” value (no enzyme control) is subtracted from all other values.

Stable at least 6 months from date of receipt, when stored as directed at -20°C or -80°C

Suitable for use with BPS’s Fluorogenic SIRT5 Assay Kit, #50085, and to study enzyme kinetics and screen small molecule inhibitors of Sirtuin 5 for drug discovery and HTS applications.

1. Madsen, A.S. and Olsen, C.A., J. Med. Chem. 2012, 55:5582-5590.
2. Du, J., et al., Science, 11 November 2011, 334:806-809.

Avoid freeze/thaw cycles. Protect from light.

Deacetylase

Substrate