_ stats: contacts=9 Nring=7 specif=0.78 _ PDBs: 1:6u9q_A, _ -lnE: 1:7.2, _ 1 0025 R* NT 0027 D* ST 0028 E* NA 0031 R* VT 0053 R* QT 0054 S ST 0055 D* SG 0056 H* KG 0059 T RG