Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7f53_L.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): TYR 2.A N SER 1.A OG no hydrogen 2.358 N/A SER 3.A OG GLU 5.A OE2.C no hydrogen 3.534 N/A LYS 11.A NZ GLU 5.A OE1.A no hydrogen 3.018 N/A