Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2ect_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): CYS 21.A SG HIS 41.A ND1 no hydrogen 3.306 N/A ARG 32.A N PHE 40.A O ARG 32.A H 2.734 1.807 LEU 34.A N HIS 38.A O LEU 34.A H 2.626 1.775 CYS 36.A SG HIS 38.A ND1 no hydrogen 3.321 N/A ASN 37.A N LEU 34.A O ASN 37.A H 3.100 2.211 PHE 40.A N ARG 32.A O PHE 40.A H 2.660 1.797 ASP 42.A N SER 30.A O ASP 42.A H 2.673 1.793 CYS 44.A N HIS 41.A O CYS 44.A H 2.733 1.840 CYS 44.A SG HIS 41.A ND1 no hydrogen 3.716 N/A ILE 45.A N HIS 41.A O ILE 45.A H 2.793 1.823 TRP 48.A N ILE 45.A O TRP 48.A H 2.610 1.856 LEU 49.A N ILE 45.A O LEU 49.A H 2.724 1.790 GLU 50.A N VAL 46.A O GLU 50.A H 3.292 2.413 GLN 51.A N TRP 48.A O GLN 51.A H 2.689 1.804 HIS 52.A N TRP 48.A O HIS 52.A H 2.751 1.796 SER 54.A OG HIS 52.A O SER 54.A HG 3.096 2.310 CYS 55.A SG HIS 38.A ND1 no hydrogen 3.707 N/A CYS 58.A SG HIS 38.A ND1 no hydrogen 3.658 N/A VAL 77.A N LEU 74.A O VAL 77.A H 2.652 1.844