Matrix of similar interfaces for 3D-footprint entry 7u32_A

_ stats: contacts=6 Nring=5 specif=0.83
_ PDBs:  1:3jca_E,
_ -lnE:  1:20.9,
_        1
0146 P  PA
0147 Q* QA
0150 A* AG
0153 E* EA
0154 R* RC
0157 Q* QG