Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1iog_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): LEU 16.A N SER 12.A O LEU 16.A H 3.395 2.567 LEU 16.A N LEU 13.A O LEU 16.A H 2.788 2.086 GLU 17.A N TYR 14.A O GLU 17.A H 2.960 2.093 TYR 19.A N LEU 16.A O TYR 19.A H 2.961 2.079 CYS 20.A N GLU 17.A O CYS 20.A H 3.057 2.149