Pyruvate dehydrogenase -
      60 individual polypeptides of 3 different enzyme proteins with 5 different coenzymes...

                                                      

     

Mass = 8,000 kDa

diameter of about 45nm

  

3D reconstruction of eukaryotic
PDH complex...

green -  E2
red     -  E3
blue   -  E1

&

5 coenzymes:
NAD, FAD, CoA, TPP, Lip