W114 Nucleic Acids Research, 2009, Vol. 37, Web Server issue 31. Iragne,F., Nikolski,M., Mathieu,B., Auber,D. and Sherman,D. (2005) ProViz: protein interaction visualization and exploration. Bioinformatics, 21, 272–274. 32. Reimand,J., Tooming,L., Peterson,H., Adler,P. and Vilo,J. (2008) GraphWeb: mining heterogeneous biological networks for gene modules with functional signiﬁcance. Nucleic Acids Res., 36, W452–W459. 33. Hu,Z., Mellor,J., Wu,J., Yamada,T., Holloway,D. and Delisi,C. (2005) VisANT: data-integrating visual framework for biological networks and modules. Nucleic Acids Res., 33, W352–W357. 34. Hu,Z., Ng,D.M., Yamada,T., Chen,C., Kawashima,S., Mellor,J., Linghu,B., Kanehisa,M., Stuart,J.M. and DeLisi,C. (2007) VisANT 3.0: new modules for pathway visualization, editing, prediction and construction. Nucleic Acids Res., 35, W625–W632. 35. Hu,Z., Snitkin,E.S. and DeLisi,C. (2008) VisANT: an integrative framework for networks in systems biology. Brief Bioinform., 9, 317–325. 36. von Mering,C., Huynen,M., Jaeggi,D., Schmidt,S., Bork,P. and Snel,B. (2003) STRING: a database of predicted functional associations between proteins. Nucleic Acids Res., 31, 258–261. 37. Prieto,C. and De Las Rivas,J. (2006) APID: Agile protein interaction data analyzer. Nucleic Acids Res., 34, W298–W302. 38. Al-Shahrour,F., Minguez,P., Vaquerizas,J.M., Conde,L. and Dopazo,J. (2005) BABELOMICS: a suite of web tools for functional annotation and analysis of groups of genes in high-throughput experiments. Nucleic Acids Res., 33, W460–W464.