2.3.1.234 | in complex with AMP, to 2.94 A resolution. Two molecules per asymmetric unit, forming a dimer. On the dimerization surface of Qri7, the side chains of Trp136 form hydrogen bonds to the carbonyl groups of the main chains of Ala135 and Arg104, and Gln87 forms hydrogen bonds to the side chains of Asp127 and Lys130. Ala88, Ile90, Gly124, Phe128, Gly131 and Val134 of chains A and B form a hydrophobic surface and contribute to hydrophobic interactions |