Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1x4j_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 21.A N GLN 20.A OE1 SER 21.A H 3.168 2.317 SER 21.A OG GLU 47.A OE2 SER 21.A HG 2.888 2.147 CYS 26.A N CYS 31.A O CYS 26.A H 2.976 2.178 CYS 26.A SG HIS 49.A ND1 no hydrogen 3.544 N/A CYS 29.A SG HIS 49.A ND1 no hydrogen 3.519 N/A CYS 31.A N CYS 26.A O CYS 31.A H 3.227 2.504 GLU 34.A N GLN 37.A OE1 GLU 34.A H 3.323 2.454 LEU 39.A N TYR 12.A O LEU 39.A H 3.384 2.446 ARG 40.A N PHE 48.A O ARG 40.A H 2.790 1.830 LEU 42.A N HIS 46.A O LEU 42.A H 2.681 1.861 CYS 44.A SG HIS 46.A ND1 no hydrogen 3.498 N/A ASN 45.A N LEU 42.A O ASN 45.A H 3.145 2.303 PHE 48.A N ARG 40.A O PHE 48.A H 2.707 1.790 ALA 50.A N LEU 38.A O ALA 50.A H 3.325 2.495 CYS 52.A SG HIS 49.A ND1 no hydrogen 3.706 N/A VAL 53.A N HIS 49.A O VAL 53.A H 2.907 2.162 LYS 55.A N LYS 51.A O LYS 55.A H 3.099 2.313 LYS 55.A N CYS 52.A O LYS 55.A H 2.553 1.790 TRP 56.A N CYS 52.A O TRP 56.A H 2.945 2.020 TRP 56.A NE1 THR 62.A O TRP 56.A HE1 2.696 1.910 LEU 57.A N VAL 53.A O LEU 57.A H 2.859 1.935 ALA 59.A N TRP 56.A O ALA 59.A H 2.603 1.890 ASN 60.A N TRP 56.A O ASN 60.A H 2.764 1.797 ARG 61.A NH2 ASP 69.A OD2 ARG 61.A HH21 3.479 2.528 CYS 63.A SG HIS 46.A ND1 no hydrogen 3.497 N/A SER 70.A OG ARG 61.A O SER 70.A HG 3.371 2.656