Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7abt_B.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ARG 2.A NH1 PRO 1.A O no hydrogen 2.822 N/A ARG 6.A NH2 PRO 3.A O no hydrogen 2.830 N/A ARG 8.A NH1 PRO 7.A O no hydrogen 2.960 N/A