3D Protein Alignment - Version 1.1 If you havn't Workstation (as Silicon Graphics) but have PC with DOS or Win 95/98/NT and want to compare 3D structure of proteins (in PDB format) this program is for you. The quality is comparable with the quality of 3D alignment on Workstation. 3DPAln can determine itself the set of matched amino acids and the degree of 3D similarity. The output of 3DPAln is 3D coordinates of second protein rotated and shifted to the best fitting to the coords of first protein in PDB format. You can see and manipulate stereo-image of final results using mirror stereo-glasses. The second output is the linear representation of 3D alignment and the list of structure conservative regions that fit to given RMS deviations. The output files will be available only in registered version of this program.