Info needed on G3PD

[Barani]

 I am looking forward to any information towards structural aspects
 or biochemical activity changes of Glyceraldehyde-3(?)-phosphate-
 dehydrogenase or its derivative enzymes that are involved in muscular 
 activities in the heart.  Has there been any work on any conformational 
 changes or loss of activity of this enzyme in heart-patients? I 
 strongly presume that there is. There are a few thousand papers on the 
 structure of this enzyme from various sources, but I did not come 
 across any that is obtained from heart patients. 

 Barani