_ stats: contacts=7 Nring=3 specif=0.43 _ PDBs: 1:7u0g_M, _ -lnE: 1:7.3, _ 1 0020 Q QT 0032 Q* ST 0033 G QA 0034 L* TG 0035 L TT 0037 E* CT 0038 I RT