The National Biomedical Computation Resource at University of California, San Diego is pleased to announce the availability of APBS Roll package for Rocks clusters version 5.4 for the x86_64 architecture.

APBS (Adaptive Poisson-Boltzmann Solver) is a scalable Poisson-Boltzmann equation solver used to study electrostatic properties of small to nanoscale biomolecular systems. The APBS Roll simplifies APBS deployment and integration on Rocks clusters. More information about APBS can be found at SourceForge or at the NBCR web site.

This APBS Roll contains the latest APBS version 1.3 and PDB2PQR package version 1.7.

The APBS Roll can be downloaded from the APBS download site and the Roll documentation including installation and usage information is available here.

Questions or comments may be directed to Robert Konecny <>.