Proteins are made of amino acid chains, or polypeptides. Amino acids have a basic backbone made of an amino group and a carboxyl group, and differ in their side-chains. These polypeptide chains of ...

Here, we describe the cloning and characterization of ScII, the second most abundant protein after topoisomerase II, of the chromosome scaffold fraction to be identified. ScII is structurally related ...

Conformational energy calculations are used to analyze the interactions of structural substructures in subtilisin BPN. These substructures are kept fixed or ``rigid'' so that the only variables in the ...