Description
This enzyme forms part of the pathway for the biosynthesis of 5-aminolevulinate from glutamate, known as theC5 pathway.The route shown in the diagram is used in most eubacteria, and in all archaebacteria, algae and plants. However, in the α-proteobacteria, EC 2.3.1.37, 5-aminolevulinate synthase, is used in an alternative route to produce the product 5-aminolevulinate from succinyl-CoA and glycine. This route is found in the mitochondria of fungi and animals, organelles that are considered to be derived from an endosymbiotic α-proteobacterium. Although higher plants do not possess EC 2.3.1.37, the protistan Euglena gracilis possesses both the C5 pathway and EC 2.3.1.37.
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