Environment and Gene Regulatory Influence Network (EGRIN) model for C. difficile 630

The Environment and Gene Regulatory Influence Network (EGRIN) model of C. difficile 630 was inferred using cMonkey2 and a compendium of 136 transcriptomes (retrieved from the Gene Expression Omnibus repository) with 4,070 sequence features including 35 rRNAs and 90 tRNAs . The C. difficile EGRIN model groups genes in subsets (406 modules in total), that are co-regulated in specific environments, and also identifies the associated, putative cis-acting gene regulatory elements (GREs), which represent potential TF binding locations. Transcriptome compendium included conditions: response to iron limitation, response to oxygen, in vivo vs in vitro growth, short term infection (0, 30, 60, 120 mins), response to commensals and host diet, transition from exponential to stationary phase, fur KO, codY KO, sporulation TF (and sigma factors) KOs.