Researchers discover how vitamin B12 is made

A scientific breakthrough by researchers at the University of Kent has revealed how vitamin B12/antipernicious anaemia factor is made - a challenge often referred to as 'the Mount Everest of biosynthetic problems'. Vitamin B12 is pieced together as an elaborate molecular jigsaw involving around 30 individual components. It is unique amongst the vitamins in that it is only made by certain bacteria. In the early 1990's it was realised that there were two pathways to allow its construction - one that requires oxygen and one that occurs in the absence of oxygen...

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