... file . ... file log . ... optimization of rasmol_homology: keep structure loaded of two sequences only One of steps of this program is superimposition of all sequences with main sequence and saving of all structures to pdb file. ... At every moment only structure of main sequence and of superimposing sequence. ... To implement this optimization methods supeimpose and save_pdb of alignment were replaced with methods with same names of sequence. ... 2 **.py = native . 3 **.txt = native . ...