Chemolithoautotrophy, or just "iron synthesis" is exclusively performed by the Rusticyanin part.
Chemolithoautotrophy is a process utilized most often by prokaryotes to produce raw ATP from the synthesis of iron, carbon dioxide, and oxygen. It is important to make sure that any patches you occupy possess a reasonable ratio of the two atmospheric gasses, as well as sufficient iron, before making use of this protein.
Use and Strategy
Chemolithoautotrophy, otherwise known as iron synthesis is a fairly reliable source of energy for prokaryotes so long as atmospheric conditions support it. However; due to lacking any kind of eukaryotic counterpart iron synthesis can make for a challenging, but not impossible choice should the player desire to progress to later stages of the game. It is suggested that the player make full use of rusticyanin and completely reject any other energy producing process should they choose to commit to iron synthesis. This is because iron synthesis directly produces ATP, making it detrimental to pair with any other processes involving things such as glucose. Otherwise, the player will need to search for two separate resources instead of just one, which is ultimately inefficient.
Function in Reality