Matrix of similar interfaces for 3D-footprint entry 1n6j_A

_ stats: contacts=3 Nring=2 specif=0.67
_ PDBs:  1:1hbx_A,2:8q9n_B,
_ -lnE:  1:8.9,2:7.2,
_        1 2
0001 R* RART
0016 Q  YA--
0021 K* KGKA