SEARCH Articles Figures Tables Active Sites and Substrate Binding Models Active site mapping with substrate analogs Active site-substrate complexes Active site-substrate complexes computer-generated Active-site-directed Irreversible Inhibitors and Substrates Computer generated active site-substrate Factor active site substrate sequences Specific Amino Acids at the Active-Site Involved in Catalysis and Substrate Binding Substrate Conformational Transition and the Role of Active Site Residues Substrate activation Substrate binding at an active site The Selective Activation of Alternative Reaction Sites in Substrates Virus Sialidase Substrate Binding and Active Site