_ stats: contacts=5 Nring=1 specif=0.20 _ PDBs: 1:5hf7_A,2:4uqm_A, _ -lnE: 1:13.6,2:9.6, _ 1 2 0154 P SG-- 0155 T KT-- 0217 P* AAPA 0218 R RGLA 0220 P PG--