%0 Journal Article %1 Schweinsberg:2008:Proteomics:18338824 %A Schweinsberg, S. %A Moll, D. %A Burghardt, N. C. %A Hahnefeld, C. %A Schwede, F. %A Zimmermann, B. %A Drewianka, S. %A Werner, L. %A Kleinjung, F. %A Genieser, H. G. %A Schuchhardt, J. %A Herberg, F. W. %D 2008 %J Proteomics %K herberg myown %N 6 %P 1212-1220 %T Systematic interpretation of cyclic nucleotide binding studies using KinetXBase %U http://www.ncbi.nlm.nih.gov/pubmed/18338824 %V 8 %X Functional proteomics aims to describe cellular protein networks in depth based on the quantification of molecular interactions. In order to study the interaction of adenosine-3',5'-cyclic monophosphate (cAMP), a general second messenger involved in several intracellular signalling networks, with one of its respective target proteins, the regulatory (R) subunit of cAMP dependent protein kinase (PKA), a number of different methods was employed. These include fluorescence polarisation (FP), isothermal titration calorimetry (ITC), surface plasmon resonance (SPR), amplified luminescence proximity homogeneous assay (ALPHA-screen), radioligand binding or activity-based assays. Kinetic, thermodynamic and equilibrium binding data of a variety of cAMP derivatives to several cAMP binding domains were integrated in a single database system, we called KinetXBase, allowing for very distinct data formats. KinetXBase is a practical data handling system for molecular interaction data of any kind, providing a synopsis of data derived from different technologies. This supports ongoing efforts in the bioinformatics community to devise formal concepts for a unified representation of interaction data, in order to enable their exchange and easy comparison. KinetXBase was applied here to analyse complex cAMP binding data and highly site-specific cAMP analogues could be identified. The software package is free for download by academic users.