_ stats: contacts=4 Nring=3 specif=0.75 _ PDBs: 1:4bqa_A,2:4l18_B,3:4mhg_A, _ -lnE: 1:10.1,2:9.9,3:9.1, _ 1 2 3 0051 A ----EC 0052 S* KTKTKT 0055 R* RGRGRG 0056 Q* YTYAHT