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.
D&B stands for Dun & Bradstreet, a financial services company that provides credit ratings for businesses of all sizes. The rating helps other companies decide whether they want to work with your business and how big a contract, credit line or loan they want to give you.