Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1tgl_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 140.A OG HIS 253.A NE2 no hydrogen 2.663 N/A HIS 253.A ND1 ASP 199.A OD1 no hydrogen 2.799 N/A HIS 253.A NE2 SER 140.A OG no hydrogen 2.663 N/A