Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 9ul1_C.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 5.A OG THR 7.A O no hydrogen 3.510 N/A SER 8.A OG VAL 9.A O no hydrogen 3.295 N/A