Vitamin B1 biosynthesis: Think Rubik's cube

(PhysOrg.com) -- A key enzyme in the biosynthesis of vitamin B1 has somehow evolved the ability to perform a complex series of some 15 to 20 steps, report two Cornell chemists.

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<p><a href="http://www.physorg.com/news146416296.html">Vitamin B1 biosynthesis: Think Rubik's cube</a></p> <p>(PhysOrg.com) -- A key enzyme in the biosynthesis of vitamin B1 has somehow evolved the ability to perform a complex series of some 15 to 20 steps, report two Cornell chemists.</p>