Fig. 1.

The reaction scheme of the photomorphogenic UV-B signaling network. Entity pool nodes in colors and shapes represent functional entities involved in UV-B–induced photomorphogenesis, including transcription factors, single proteins, protein complexes, photoreceptors, and their source and sink. Process nodes describe the way in which functional entities are transformed into different states, namely the association and dissociation of protein complexes and identified and uncertain processes. Connecting arcs indicate the effects of inhibition, production, stimulation, and trigger on processes exerted by functional entities. Multimer cardinality shows that several copies of the same function entities are involved in the process.