Matrix of similar interfaces for 3D-footprint entry 1rio_A

_ stats: contacts=5 Nring=2 specif=0.40
_ PDBs:  1:8g87_X,
_ -lnE:  1:7.6,
_        1
0042 G  SG
0043 Q* QA
0044 S* TG
0047 G  CA
0048 A  RG