I followed the tutorial, and did docking. Now, I can see that the complex structure that I predicted is completely match the true complex structure. But, when I use TMalign and TMscore, they give me something like the following:
Name of Chain_1: predicted.pdb
Name of Chain_2: true.pdb
Length of Chain_1: 289 residues
Length of Chain_2: 579 residues
TM-score= 1.00000 (if normalized by length of Chain_1)
TM-score= 0.49914 (if normalized by length of Chain_2)
They both have 579 residues, but I don't why TMalign says chain one has 289.
Any help will be appreciate.