Schematic view of ParPEST pipeline. EST sequences in GenBank or FASTA format can be submitted to the pipeline. ParPEST performs automatically the consecutive processes (ESTS cleaning, clustering, assembling and BLAST comparisons) as represented by blank arrows (⇒). Data flow is represented by simple arrows (→). Databases supporting the analysis are included. The results are adequately reported and organized into a MySQL relational database indicated too. As reported, the database can be queried by SQL calls and is accessible to users by web based intuitive interfaces.