Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 6ssx_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 19.A OG THR 52.A OG1 no hydrogen 3.301 N/A GLN 39.A NE2 THR 31.A O no hydrogen 3.226 N/A SER 64.A OG ALA 5.A O no hydrogen 3.514 N/A