Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6h6a_E.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): CYS 4.A N GLY 1.A O no hydrogen 3.157 N/A CYS 4.A SG GLY 1.A O no hydrogen 3.384 N/A