Figure 2From: SHV Lactamase Engineering Database: a reconciliation tool for SHV β-lactamases in public databasesThe structure of SHV-1 β-lactamases (PDB entry 1SHV) with new substitution positions found in fragments. Amino acid side chains are shown in stick representation: substitutions occurring at novel positions (green), novel amino acid substitution at known position (red), active site residues (yellow).Back to article page