Kui Lin (email@example.com)
Anthony E. Ting (firstname.lastname@example.org)
Jiren Wang (email@example.com)
 NUS BioInformatics Center, National University of Singapore
 Institute of Molecular & Cell Biology, 30 Medical Drive
 Kent Ridge Digital Labs,21 Heng Mui Keng Terrace
We have two objectives. First, we want to build a system for detecting tetratricopeptide repeats in protein sequences. Second, we want to demonstrate how the general bioinformatics database integration system called Kleisli can help build such a system easily. We achieve these two objectives by showing that short and clear programs can be written in Kleisli, using its high-level query language CPL, to build a TPR domain hunter by integrating WU-BLAST2.0, HMMER, Entrez, and PFAM.