Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 8txw_K.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 6.A OG GLY 5.A O no hydrogen 2.478 N/A SER 6.A OG ASP 8.A O no hydrogen 3.268 N/A