Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 8ana_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ARG 9.A NE SER 7.A O no hydrogen 2.969 N/A ARG 9.A NE SER 7.A OG no hydrogen 3.304 N/A ARG 9.A NH2 SER 7.A OG no hydrogen 2.966 N/A