Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6g8i_P.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 3.A OG.A PRO 4.A O SER 3.A HG.A 3.267 2.491 SER 3.A OG.B PRO 4.A O SER 3.A HG.B 2.936 2.099