Palaniappan, C., Sharma, V., Hudspeth, M. E., & Meganathan, R. (1992). Menaquinone (vitamin K2) biosynthesis: Evidence that the Escherichia coli menD gene encodes both 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic acid synthase and alpha-ketoglutarate decarboxylase activities.

Palaniappan, C., V. Sharma, M E. Hudspeth, ja R. Meganathan. Menaquinone (vitamin K2) Biosynthesis: Evidence That the Escherichia Coli MenD Gene Encodes Both 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic Acid Synthase and Alpha-ketoglutarate Decarboxylase Activities. 1992.

Palaniappan, C., V. Sharma, M E. Hudspeth, ja R. Meganathan. Menaquinone (vitamin K2) Biosynthesis: Evidence That the Escherichia Coli MenD Gene Encodes Both 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic Acid Synthase and Alpha-ketoglutarate Decarboxylase Activities. 1992.