Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2p54_B.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): HIS 7.A N HIS 3.A O no hydrogen 2.994 N/A HIS 7.A ND1 HIS 3.A O no hydrogen 2.708 N/A ARG 8.A N LYS 4.A O no hydrogen 3.087 N/A LEU 9.A N ILE 5.A O no hydrogen 2.906 N/A LEU 10.A N LEU 6.A O no hydrogen 2.935 N/A GLN 11.A N HIS 7.A O no hydrogen 3.170 N/A GLN 11.A N ARG 8.A O no hydrogen 3.044 N/A GLU 12.A N LEU 9.A O no hydrogen 3.452 N/A