The main pages of CyanoPATH. A: the Genome page that stores 178 genomes with associated metrics; B: the Pathway summary page for each genome; C: the Nitrogen utilization pathway in Anabaena sp. 90; D: the major transporters in nitrate and nitrite utilization; E: the protein constituents of the nitrate ABC transporter; F: user uploading sequences for prediction; G: the predicted pathways.