Important: API Instability Notice
The PDB2PQR/APBS web server API is undergoing changes, which may cause connection instability or failures. This is not an error in this tool, it's a temporary limitation.
Automatic Fallback: If the APBS server fails, the tool will automatically switch to a simplified electrostatic model based on residue charges (ARG/LYS: positive, ASP/GLU: negative). While less accurate, this provides immediate results for quick analysis.
Skip the Wait: Click "Use Simplified Mode" button to directly use the fallback model without trying APBS first.
Simple Solution: Install a CORS browser extension (e.g., "CORS Unblock") or use local APBS installation for production work. See CORS_SETUP.md for details.
PDB Input
APBS Parameters
Electrostatic Results
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