Matrix of similar interfaces for 3D-footprint entry 3knt_A

_ stats: contacts=5 Nring=2 specif=0.40
_ PDBs:  1:8dvp_A,2:4ejy_A,
_ -lnE:  1:16.2,2:15.8,
_        1 2
0048 N* QGNG
0050 T  --RG
0084 F* YCFG
0085 Y  --RC
0168 R  PA--