| Assay Method Information | |
| | In Vitro Assay |
| Description: | Chymase assays were performed in a total volume of 15 uL in Corning black opaque 384-well microtiter plates with a non-binding surface (Corning, N.Y.). The assay buffer was comprised of 20 mM Tris HCl pH 8.0, 50 mM NaCl, 0.01% CHAPS. The test compounds were serially diluted 3-fold with neat DMSO in a 96-well polypropylene plate from a 10 mM DMSO stock to give the 10 point dose response curve. 3 uL of the resulting DMSO solution were transferred to a 384-well polypropylene plate in duplicate, and 37 uL of assay buffer was added. Chymase was added to the assay plate in 3 uL of assay buffer followed by 2 uL of the appropriate compound dilution using a PlateMate Plus (Matrix Technologies Corp., Hudson, N.H.). The reaction was initiated by the addition of 10 uL rhodamine 110, bis-(succinoyl-L-alanyl-L-alanyl-L-prolyl-L-phenylalanylamide) (American Peptides, Sunnyvale, Calif.) in assay buffer containing 150 uM tris(2-carboxyethyl)phosphine. |
| Affinity data for this assay | |
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