Glyceraldehyde-3-phosphate source

Paul S. Brookes. brookes at
Wed Mar 1 13:19:17 EST 2000

Sigma also sells a precursor  - G3P diethylacetal (G5376),  from which you 
can make a solution of G3P relatively easily - it's also cheaper and keeps 
for longer in the freezer.

If you require it for a GAPDH assay, don't forget you can also assay this 
enzyme backwards using 3PG as substrate with PGK as auxilliary enzyme and 
follow NADH going the other way.  I have protocols for both the forward and 
backward assays if you need them.


Dr. Paul S. Brookes.            (brookes at
UAB Department of Pathology,   G004 Volker Hall
1670 University Blvd., Birmingham AL 35294 USA
Tel (001) 205 934 1915     Fax (001) 205 934 1775

The quality of e-mails can go down as well as up
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