Translations:Biotin/33/en

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Using E. coli, a biosynthesis pathway was proposed by Rolfe and Eisenberg in 1968. The initial step was described as a condensation of pimelyl-CoA and alanine to form 7-oxo-8-aminopelargonic acid. From there, they described three-step process, the last being introducing a sulfur atom to form the tetrahydrothiophene ring.