Life's utilization of B vitamins on early Earth - PubMed

Coenzymes are essential across all domains of life. B vitamins (B<sub>1</sub> -thiamin, B<sub>2</sub> -riboflavin, B<sub>3</sub> -niacin, B<sub>5</sub> -pantothenate, B<sub>6</sub> -pyridoxine, B<sub>7</sub> -biotin, and B<sub>12</sub> -cobalamin) represent the largest class of coenzymes, which part …