Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7lc9_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): LYS 13.A NZ GLU 16.A OE1 no hydrogen 2.293 N/A ASN 20.A ND2 GLY 23.A O no hydrogen 2.868 N/A