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 A tool that performs Genome Scale Atom Mapping. The results can be exploited to build carbon skeleton networks for topological analysis of genome-scale metabolic networks (GSMN), and analyse atom tracking results.
 GSAM is a built around the Reaction Decoder Toolkit, a library which compute atom mappings from reactions represented as RxnSmiles.
 It uses the JSBML library to import a GSMN in standard format, then automatically generate all the RxnSmiles from provided compounds structures, launch the atom mapping and finally parse the results to render meaningful substrate-products transitions.