searching patterns including sek. structures

[Gunther Häß]

Hi netters

I'm searching for an amino-acid pattern searching program that includes 
the secondary structere in the pattern. It should be able to find, 
for example, a pattern of amino-acid on one side of an alpha helix
or in an angle of 90 degrees in the horizontal cut around one special 
amino-acid.
Does anybody know about a program which could perform such things?

Please answer to 

haess at immunbio.mpg.de