PDBeValidation Get Outlier Residues

Get residue-level validation outliers for a PDB structure from PDBe. Identifies specific residues with geometry problems (Ramachandran outliers, sidechain rotamer outliers, bond angle/length deviations). Returns problematic residues organized by molecule/chain. Essential for identifying unreliable regions before using structure data for molecular docking, mutation analysis, or protein engineering. Example: 4HHB has residue-level outliers in chains A-D with rotamer and Ramachandran deviations.