Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6sst_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): GLN 39.A NE2 THR 31.A O no hydrogen 3.296 N/A SER 64.A OG ALA 5.A O no hydrogen 3.195 N/A