_ stats: contacts=5 Nring=3 specif=0.60 _ PDBs: 1:5e69_A,2:1hcq_E, _ -lnE: 1:11.1,2:10.6, _ 1 2 0023 G --EC 0026 K* KAKG 0027 V* VAAG 0030 K --KG 0031 R* RARG