What is the molecular weight (mw) of Glyceraldehyde phosphate dehydrogenase (GADPH)?

144 kDa

GADPH is a tetramer with a total molecular weight of 144,000 daltons.  All four subunits: O, Q, R, and P are independent of each other, however each subunit contains the coenzyme NAD⁺ (11).  Each subunit also contains 331 residues with molecular weights of 36,000 daltons.