In article <657av7$cao$1 at news.fas.harvard.edu>,
mlevin at login1.fas.harvard.edu (Michael Levin) wrote:
> Are there any proteins or protein families less than 1 kD in size? I'm
> especially interested in ones which may have an interesting role in some
> process (regulation, development, etc.). Please send any ideas to
>mlevin at fas.harvard.edu (or, if there's some database that one can search
> with this sort of criteria in mind, I'd be very grateful to know).
> Thanks!
>> Mike Levin
Hi Mike,
I agree with Vladimir about the definition of "proteins". What you are
interested in, appear to be peptides. As a starting point, see the
"Bioactive Peptides" chapter of the SIGMA catalogue (no affiliation).
You´ll find many interesting examples there.
Hope this helps,
Frank