A probable diguanylate cyclase. The last member of a cascade of expressed proteins, its expression requires DgcM. DgcC production induces biosynthesis of cellulose in some E.coli isolates, but not in K12 strains. Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. 2 GTP = cyclic di-3',5'-guanylate + 2 diphosphate Binds 1 Mg(2+) ion per monomer. Purine metabolism; 3',5'-cyclic di-GMP biosynthesis. Expressed at 28 degrees Celsius in late stationary phase, more highly expressed on plates than in liquid medium. Expression is RpoS-, CsgD- and DgcM-dependent.