%0 Journal Article %T The 2nd DBCLS BioHackathon: interoperable bioinformatics Web services for integrated applications %A Toshiaki Katayama %A Mark D Wilkinson %A Rutger Vos %A Takeshi Kawashima %A Shuichi Kawashima %A Mitsuteru Nakao %A Yasunori Yamamoto %A Hong-Woo Chun %A Atsuko Yamaguchi %A Shin Kawano %A Jan Aerts %A Kiyoko F Aoki-Kinoshita %A Kazuharu Arakawa %A Bruno Aranda %A Raoul JP Bonnal %A Jos¨¦ M Fern¨˘ndez %A Takatomo Fujisawa %A Paul MK Gordon %A Naohisa Goto %A Syed Haider %A Todd Harris %A Takashi Hatakeyama %A Isaac Ho %A Masumi Itoh %A Arek Kasprzyk %A Nobuhiro Kido %A Young-Joo Kim %A Akira R Kinjo %A Fumikazu Konishi %A Yulia Kovarskaya %J Journal of Biomedical Semantics %D 2011 %I BioMed Central %R 10.1186/2041-1480-2-4 %X Developers in attendance came from diverse backgrounds, with experts in Web services, workflow tools, text mining and visualization. Genome biologists provided expertise and exemplar data from the domains of sequence and pathway analysis and glyco-informatics. One goal of the meeting was to evaluate the ability to address real world use cases in these domains using the tools that the developers represented. This resulted in i) a workflow to annotate 100,000 sequences from an invertebrate species; ii) an integrated system for analysis of the transcription factor binding sites (TFBSs) enriched based on differential gene expression data obtained from a microarray experiment; iii) a workflow to enumerate putative physical protein interactions among enzymes in a metabolic pathway using protein structure data; iv) a workflow to analyze glyco-gene-related diseases by searching for human homologs of glyco-genes in other species, such as fruit flies, and retrieving their phenotype-annotated SNPs.Beyond deriving prototype solutions for each use-case, a second major purpose of the BioHackathon was to highlight areas of insufficiency. We discuss the issues raised by our exploration of the problem/solution space, concluding that there are still problems with the way Web services are modeled and annotated, including: i) the absence of several useful data or analysis functions in the Web service "space"; ii) the lack of documentation of methods; iii) lack of compliance with the SOAP/WSDL specification among and between various programming-language libraries; and iv) incompatibility between various bioinformatics data formats. Although it was still difficult to solve real world problems posed to the developers by the biological researchers in attendance because of these problems, we note the promise of addressing these issues within a semantic framework.Life Sciences are facing a new era where unprecedented amounts of genomic-scale data are produced daily. To handle the data from, %U http://www.jbiomedsem.com/content/2/1/4