Hunter, G A, and G C Ferreira. “5-Aminolevulinate Synthase: Catalysis of the First Step of Heme Biosynthesis”. Cellular and Molecular Biology 55, no. 1 (February 16, 2015): 102–110. Accessed May 20, 2024. http://www.cellmolbiol.org/index.php/CMB/article/view/1077.