Selenocysteine (#21)

As far as I know, selenocysteine is the only reason you need selenium in your diet (which you almost certainly get enough of; the requirement is vanishingly small,

It is the nucleophilicity that is so important; it is found in the amino acid selenocysteine - that is, the selenium analogue of the sulfur amino acid cysteine (or the oxygen amino acid serine).


Selenocysteine plays a role in thioredoxin reductase, the reaction of which with curcumin may have chemotherapeutic applications.


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One of the methods for offsetting selenium toxicity is exposure to arsenic, however, exposure to selenium also offsets arsenic toxicity. I guess two wrongs do make a right.

By As You Lean (not verified) on 10 Apr 2008 #permalink