_ stats: contacts=7 Nring=5 specif=0.71 _ PDBs: 1:4l18_B,2:4bqa_A,3:4mhg_A, _ -lnE: 1:14.5,2:13.8,3:11.7, _ 1 2 3 0052 E ----EC 0053 K* KTKTKT 0056 R* RGRGRG 0057 A* ----AT 0059 R* RGRGRG 0060 Y* YAYTHT 0074 R ----RA