Risk which is common to an entire class of assets or liabilities. The value of investments may decline over a given time period simply because of economic changes or other events that impact large portions of the market.
Properties of the alpha-helix. 1  The structure repeats itself every 5.4 Angstroms along the helix axis, ie we say that the alpha-helix has a pitch of 5.4 Angstroms. Alpha-helices have 3.6 amino acid residues per turn, ie a helix 36 amino acids long would form 10 turns.
Critical Thermodynamic Issues: Helix Folding and Insertion. Our strategy involves studying the interactions of small peptides (3 - 35 amino acids) with lipid bilayers in order to surmise the thermodynamic principles of the folding and stability of whole membrane proteins.