Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7or7_B.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ARG 2.A NH2 ARG 2.A O ARG 2.A HH21 2.933 2.084 ARG 7.A N ALA 4.A O ARG 7.A H 3.323 2.481