Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7w3a_v.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): UNK 1.A N UNK 4.A O no hydrogen 3.489 N/A UNK 33.A N UNK 31.A O no hydrogen 2.973 N/A