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.
Perhaps the most elemental structural property of bacteria is their morphology (shape). 1  Typical examples include: 2  coccus (spherical) 3  bacillus (rod-like) 4  spiral(DNA-like) 5  filamentous (elongated)