_ stats: contacts=4 Nring=2 specif=0.50 _ PDBs: 1:6ldi_G,2:1r8e_A, _ -lnE: 1:9.9,2:9.7, _ 1 2 0022 R* KGKC 0025 R* RTRT 0026 Y FC-- 0042 I YGYC