Phytobilin biosynthesis: cloning and expression of a gene encoding soluble ferredoxin‐dependent heme oxygenase from Synechocystis sp. PCC 6803

Abstract
The phytobilin chromophores of phycobiliproteins and phytochromes are biosynthesized from heme in a pathway that begins with the opening of the tetrapyrrole macrocycle of protoheme to form biliverdin...