Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2epc_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): TYR 12.A N PHE 21.A O TYR 12.A H 3.479 2.592 CYS 14.A N LYS 19.A O CYS 14.A H 3.012 2.074 CYS 17.A SG HIS 30.A NE2 no hydrogen 3.383 N/A PHE 21.A N TYR 12.A O PHE 21.A H 3.502 2.582 ALA 28.A N ARG 24.A O ALA 28.A H 3.301 2.371 VAL 29.A N GLY 25.A O VAL 29.A H 2.860 1.882 HIS 30.A N SER 26.A O HIS 30.A H 2.983 2.157 GLN 31.A N LEU 27.A O GLN 31.A H 3.089 2.197 ARG 32.A N ALA 28.A O ARG 32.A H 3.411 2.622 ARG 32.A N VAL 29.A O ARG 32.A H 3.355 2.585 CYS 34.A N HIS 30.A O CYS 34.A H 2.781 1.834 CYS 34.A SG HIS 30.A NE2 no hydrogen 3.430 N/A