_ stats: contacts=4 Nring=2 specif=0.50 _ PDBs: 1:6byy_A,2:1k6o_B,3:1hbx_A, _ -lnE: 1:13.5,2:9.0,3:8.9, _ 1 2 3 0001 R* RTRTRA 0016 Q ----YA 0020 T --ST-- 0021 K* KAKTKG