Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 8b87_C.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ARG 4.A NH2 GLU 6.A OE1 ARG 4.A HH22 2.569 1.741