Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 4dx9_6.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): THR 6.A OG1 VAL 7.A O no hydrogen 3.508 N/A ASN 9.A ND2 LYS 11.A O no hydrogen 2.721 N/A