The three-dimensional conformation of biomolecules is of the utmost importance in their interactions; for example, in the binding of a substrate (reactant) to the catalytic site of an enzyme (Fig. 3-8), the two molecules must fit each other closely, in a complementary fashion, for biological function.
DD&A stands for Depletion, Depreciation and Amortization. Suggest new definition. This definition appears frequently and is found in the following Acronym Finder categories: Business, finance, etc.
1 Dda (DNA-dependent ATPase), a DNA helicase. 2  Delhi Development Authority, the planning agency for Delhi, India. 3  Demand deposit account, a bank account with funds available on demand.  Digital differential analyzer, a digital implementation of a differential analyzer.