_ stats: contacts=9 Nring=5 specif=0.56 _ PDBs: 1:6u9q_A, _ -lnE: 1:7.5, _ 1 0016 G NT 0018 G ST 0019 K* NA 0022 R* VT 0044 R* QT 0045 Q ST 0046 D* SG 0047 K* KG 0050 V RG