The NCBI BioSystems database centralizes and cross-links existing biological systems databases, increasing their utility and target audience by integrating their pathways and systems into NCBI resources. This integration allows users of NCBI's Entrez databases to quickly categorize proteins, genes and small molecules by metabolic pathway, disease state or other BioSystem type.
PBEQ-Solver is a wb based graphical user interface to read biomolecular structures, solve the Poisson-Boltzmann equations and interactively display the eletrostatic potential.
PSORT.org provides links to the PSORT family of web-based programs for subcellular localization prediction, including PSORTb and WoLF PSORT, well as other datasets and resources relevant to localization prediction.