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> Brain-dead question:  is there a ccp4 program that will invert a
> substructure for me?  (pdbset doesn't, does it?)

Surprisingly, LSQKAB appears to accept a rotation matrix with a negative 
determinant :

lsqkab XYZINW in.pdb XYZOUT out.pdb << eoin
ROTATE MATRIX -1 0 0 0 -1 0 0 0 -1
END
eoin


Nicholas



-- 


            Dr Nicholas M. Glykos, Department of Molecular 
        Biology and Genetics, Democritus University of Thrace,
    Dimitras 19, 68100 Alexandroupolis, GREECE, Fax ++302551030613
     Tel ++302551030620 (77620),  http://www.mbg.duth.gr/~glykos/

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