Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7r7v_C.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 3.A OG GLU 5.A OE2 no hydrogen 2.742 N/A GLU 5.A N SER 3.A OG no hydrogen 3.257 N/A