Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1k37_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): THR 4.A N TYR 21.A O THR 4.A H 3.159 2.244 CYS 14.A SG CYS 14.A O CYS 14.A HG 3.003 2.398 LEU 15.A N CYS 41.A O LEU 15.A H 3.284 2.442 HIS 16.A N CYS 41.A O HIS 16.A H 3.370 2.458 HIS 16.A ND1 CYS 41.A O HIS 16.A HD1 2.816 1.855 GLN 18.A N ARG 31.A O GLN 18.A H 2.910 2.010 ILE 20.A N TYR 29.A O ILE 20.A H 2.797 1.845 LEU 22.A N GLN 27.A O LEU 22.A H 3.295 2.317 TYR 29.A N ILE 20.A O TYR 29.A H 3.082 2.312 ARG 31.A N GLN 18.A O ARG 31.A H 3.063 2.278 ARG 31.A NH2 TYR 29.A OH ARG 31.A HH21 3.332 2.385 TYR 36.A N GLU 33.A O TYR 36.A H 3.281 2.323 THR 37.A N HIS 43.A O THR 37.A H 3.525 2.538 ARG 40.A NE ARG 40.A O ARG 40.A HE 3.124 2.422