Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7osd_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): TRP 4.A N VAL 2.A O TRP 4.A H 3.057 2.193 LYS 7.A N PRO 3.A O LYS 7.A H 3.290 2.476 GLU 9.A N LYS 6.A O GLU 9.A H 3.589 2.565