Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6rl4_P.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): LYS 1.A NZ LEU 2.A O LYS 1.A HZ3 2.851 1.978