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

_ stats: contacts=4 Nring=2 specif=0.50
_ PDBs:  1:6byy_A,2:1k6o_B,3:1hbx_A,
_ -lnE:  1:13.5,2:9.0,3:8.9,
_        1 2 3
0001 R* RTRTRA
0016 Q  ----YA
0020 T  --ST--
0021 K* KAKTKG