Supplementary Information : Network motifs provide signatures that characterize metabolism

Network motifs provide signatures that characterize metabolism Erin R. Shellmana,b, Charles F. Burantb and Santiago Schnellc,b aDepartment of Internal Medicine, University of Michigan Medical School, Ann Arbor, USA. bDepartment of Computational Medicine & Bioinformatics, University of Michigan Medical School, Ann Arbor, USA. cDepartment of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, USA. E-mail: schnells@umich.edu