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.
Senior Information and Assistance Program (I&A) The Senior Information and Assistance Program (I&A) is the main entry point to services within each Area Agency on Aging. The I&A staff assess individuals' needs and link them to local services or provide referrals to programs in other communities.