Dear all, I have been using UCSF Chimera for structural superpositions for last few days. But while trying to do multiple superimposition for a set of proteins, i am unable to perform it. can anybody give me any suggestion? Regards Pankaj Barah Junior Research Fellow, Phone:+91-9922346120(M) Bioinformatics Centre, +91-20-25692039(O) University of Pune, Pune 411 007,Maharashtra, India. Pankaj Borah MSc Bioinformatics Univ of Madras(HCAS) Mobile number: 09884270481(Chennai)/ 09844514157(B'lore) Home number:(03752)259201 Alt. Mail id: pankajborah@gmail.com Group homepage: http://groups.yahoo.com/group/bioinformatrix/ --------------------------------- Office firewalls, cyber cafes, college labs, don't allow you to download CHAT? Here's a solution!