Matrix of similar interfaces for 3D-footprint entry 1r8e_A

_ stats: contacts=6 Nring=3 specif=0.50
_ PDBs:  1:7ckq_G,2:5d8c_A,3:5i44_I,
_ -lnE:  1:34.8,2:13.4,3:9.9,
_        1 2 3
0017 K* KGYTKG
0020 R* RTRTQG
0021 Y  YGFCRT
0024 K  --KG--
0039 Y* YC----
0040 R  RT----