In article ,
Eugene Griessel wrote:

It's a bit of an exaggeration to say that the composition and function
are a *complete* mystery.

To say the least.

There was an article in "Nature" aboutit yesterday - but I think the
web version may require you to be a subscriber:

http://ealerts.nature.com/cgi-bin24/...eM0HjB0BGqh0E8

You can download the paper as a PDF document from:

http://www.nature.com/nature/journal...ature05357.pdf

(or at least I can; I suppose it's possible that I can only get it
because my university subscribes).

-- Richard
--
"Consideration shall be given to the need for as many as 32 characters
in some alphabets" - X3.4, 1963.