_ stats: contacts=7 Nring=3 specif=0.43 _ PDBs: 1:7u0g_M, _ -lnE: 1:8.0, _ 1 0025 Q QT 0035 K ST 0036 Q* QA 0037 A* TG 0038 T TT 0040 S* CT 0043 E RT