_ stats: contacts=7 Nring=3 specif=0.43 _ PDBs: 1:1svc_P,2:1nfk_A,3:2o61_B,4:1a3q_A, _ -lnE: 1:21.8,2:21.5,3:21.3,4:20.4, _ 1 2 3 4 0014 R* RCRGRGRG 0016 R* RCRGRGRG 0017 Y YCYTYTYT 0019 C --CCCTCC 0020 E* ECECECEC 0024 A HCHTHGHG 0037 K --KT----