The 2009 ESBOC meeting covered advances in synthesis, biosynthesis and biological mechanisms of vitamins ... many enzymes requires the involvement of a small-molecule cosubstrate. These cofactors ...

In fact, sulfur occurs in all the major classes of biomolecules, including proteins, sugars, nucleic acids, vitamin cofactors ... is used by a number of enzyme cofactors. S-adenosylmethionine ...