KEGG
Repository of metabolic pathways for organisms whose genome is completely sequenced. Also regulatory information.
For many of these organisms, the body of experimental data is very restricted. Protein function inferred from sequence similarity with proteins characterised experimentally in other organisms.
Pathways represented as diagrams, manually created & stored as static gif files.
Upon selection of an organism, the reactions for which an enzyme is known in that organism are highlighted in colour in the generic pathway diagrams.