Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6zch_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ARG 18.A NH2 ASP 15.A OD1 no hydrogen 2.441 N/A LYS 33.A NZ ASP 15.A OD2 no hydrogen 2.838 N/A LYS 33.A NZ GLY 31.A O no hydrogen 3.132 N/A SER 63.A OG ARG 61.A O no hydrogen 2.860 N/A