Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6l71_C.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ARG 2.A NE GLN 4.A OE1 no hydrogen 3.330 N/A ARG 2.A NH2 GLN 4.A OE1 no hydrogen 2.634 N/A