Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1arf_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): CYS 5.A N ARG 10.A O CYS 5.A H 2.460 1.507 CYS 5.A SG HIS 21.A NE2 no hydrogen 3.356 N/A CYS 5.A SG HIS 25.A NE2 no hydrogen 3.383 N/A CYS 8.A SG HIS 21.A NE2 no hydrogen 2.985 N/A CYS 8.A SG HIS 25.A NE2 no hydrogen 3.993 N/A PHE 12.A N PHE 3.A O PHE 12.A H 2.773 1.880 LYS 19.A N GLN 15.A O LYS 19.A H 2.646 1.702 ARG 20.A N GLU 16.A O ARG 20.A H 2.942 1.946 HIS 21.A N TYR 17.A O HIS 21.A H 2.642 1.731 TYR 22.A N LEU 18.A O TYR 22.A H 2.682 1.798 TYR 22.A N LYS 19.A O TYR 22.A H 3.198 2.502 TYR 22.A OH GLU 6.A OE2 TYR 22.A HH 2.373 1.634 ARG 23.A N ARG 20.A O ARG 23.A H 2.497 1.614 SER 24.A N HIS 21.A O SER 24.A H 2.891 1.936 HIS 25.A N TYR 22.A O HIS 25.A H 2.773 1.815 HIS 25.A NE2 HIS 21.A NE2 no hydrogen 2.928 N/A ASN 27.A ND2 THR 26.A OG1 ASN 27.A HD22 3.267 2.477