Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 5zwo_Z.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): LEU 19.A N GLY 15.A O no hydrogen 2.986 N/A GLU 20.A N LEU 16.A O no hydrogen 3.318 N/A ASN 22.A N GLU 18.A O no hydrogen 3.492 N/A