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Solution Informationhelp
Enzyme: Factor XIIa
inhibitor: BDBM32804
substrate: n/a
 
Solution Type: Aqueous
pH at Preparation: n/a
Temp. Prep.: n/a
Comments: Materials Human plasma factor XIIa alpha was purchased from Enzyme Research Laboratories (Cat # HFXIIa 1212a). Substrate Boc-Gln-Gly-Arg-AMC was from Bachem (Cat #I-1595.0050). Assay buffer consisted of 50 mM Tris, pH 7.4, 150 mM sodium chloride, 0.02% Tween 20. Low-volume 384-well black plates were from Corning (Item #3676). Assay Factor XIIa alpha (3.5 ug/mL) was incubated with Boc-Gln-Gly-Arg-AMC substrate (15 uM) in 10 uL of assay buffer (see above) for 2 hr at room temperature. IC50 protocol 1.Serial dilute single compounds at 50x concentration in DMSO (16 two-fold dilutions from 2.5 mM to 75 nM) 2.Fill low-volume plate with 4 uL water using Multidrop-micro 3.Add 5 uL assay buffer to columns 1 and 23 using Multidrop-384 4.Add 200 nL of compound (in DMSO from step 1) using 2 transfers of 100 nL with the Evolution 384 pintool (washed with isopropanol after each transfer) 5.Add 1 uL of Boc-Gln-Gly-Arg-AMC substrate (150 uM in 5x assay buffer) using Multidrop-micro 6.Add 5 uL
 
 

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Last update November 1, 2007
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