1. Amino acid information    This resource contains a set of pages that can be used to understand the physical chemistry of amino acids in proteins. 2. Enzymes    A simple index to the Enzyme Commision numbering system. 3. MALDI methods    A reference to some common methods in MALDI mass spectrometry. 4. Proteases    An index to the classification of proteolytic enzymes. These enzymes are commonly used in protein chemistry and they are also a common mechanism for post-translational modification. 5. Recipes    A reference to some common enzymatic cleavage reactions. The recipes given were chosen for consistency and compatibility with MS sample preparation. 5. Peptide synthesis    A reference to some of the commonly used protecting groups in peptide synthesis. back to Knexus