Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1qr1_C.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 3.A OG VAL 5.A O no hydrogen 3.457 N/A VAL 5.A N SER 3.A OG no hydrogen 2.893 N/A