Hello Bashir,

If I understand your question correctly, Expresso and 3D-Coffee from the 
T-coffee people will do just what you want.  They align sequences while 
utilizing any available structural information.

http://www.tcoffee.org/Projects_home_page/expresso_home_page.html

hope that is what you are looking for,

Eric

__________________________
Eric Larson, PhD
Biomolecular Structure Center
Department of Biochemistry
Box 357742
University of Washington
Seattle, WA 98195


On Fri, 26 Nov 2010, Muhammed bashir Khan wrote:

| Dear All;
| | I have structures of two protein one full-length while the other truncated
| at the c-terminus(one from prokaryote while the other from eukaryotes).
| Now I want to do the sequence alignment of these two proteins from all
| species in such a way that the structure based sequence remain constant
| while extending the sequence only at the c-terminus. Remember the
| structure are known only for the two proteins.
| | Any suggestion will be highly appreciated!!!!! | | Regards and have a nice weekend. | | Bashir
|

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