*HELP* about secondary structure domains

Robert Matthew Barrie matt at cs.su.oz.au
Sun Jul 10 23:53:50 EST 1994


GLUX at msvax.mssm.edu writes:

>         the number i heard bandied about is 15-25
> aminmo acids, by empirical speakers.

It take it you are referring to the beta-alpha-beta motif?
 
I was looking for a complete makeup for many domains, such
as this one for the b-a-b as follows:

============================================================ 
Average length of the structural components of the bab unit:
------------------------------------------------------------
 
Beta-Sheet          5.5 (+- 1.8)  *
Coil                5.3 (+- 4.9)
Alpha-Helix        11.9 (+- 3.2)  *
Coil                4.6 (+- 3.4)
Beta-Sheet          5.2 (+- 1.5)  *

Average fitting value 221 (+- 76), where the fitting value
is the product of the length of asterisked components.
 
(The fitting value cannot exceed 300).
 
from "Recognition of Super-secondary Structure in Proteins.",
Taylor & Thornton, J. Mol. Biol (1984) 173, 487-514.
============================================================


matt




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