Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 8ib0_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): TYR 20.A OH ASP 22.A OD2 TYR 20.A HH 2.736 1.789