Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 4d6u_V.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): VAL 4.A N ARG 16.A O no hydrogen 2.697 N/A SER 6.A N SER 14.A O no hydrogen 2.802 N/A SER 14.A N SER 6.A O no hydrogen 2.798 N/A