[modeller_usage] loop modeling based on a template

Hi,

I have two pdb files of the same protein in complex with different ligands. PDB1 has all residues. PDB2 misses a small loop. Is it possible to model the missing loop of PDB2 based on the corresponding residues of PDB1 while keeping all other residues in the exact same positions? Which functions should be used? Thank you very much!

marco neves