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This web site ptp.cshl.edu had the following in the homepage, "A Web-Accessible Resource of Information on." We noticed that the webpage stated " This website aims to provide a peer-reviewed compendium on Protein Tyrosine Phosphatases PTPs that integrates sequence and structure information with cellular and biological function." It also said " Together with our analyses published in Mol and Cell Biol 2001. It provides a resource for annotation and classification of the classical, tyrosine-specific PTPs. At this website, which is a collaborative project between researches at Novo Nordisk and Cold Spring Harbor Labor." The header had protein phosphatase as the highest ranking optimized keyword. It is followed by phosphatase, phosphatases, and tyrosine phosphatase which isn't as ranked as highly as protein phosphatase. The next words ptp.cshl.edu used was protein tyrosine phosphatase. protein tyrosine phosphatases was included but could not be understood by search crawlers.