_ stats: contacts=8 Nring=7 specif=0.88 _ PDBs: 1:2o61_A, _ -lnE: 1:29.6, _ 1 0015 R* RG 0017 R* RG 0018 Y* YT 0020 C* CT 0021 E* EC 0023 P RT 0202 K* RT 0233 K* KA