Matrix of similar interfaces for 3D-footprint entry 1r8d_B

_ stats: contacts=4 Nring=4 specif=1.00
_ PDBs:  1:6ldi_G,
_ -lnE:  1:15.2,
_        1
0016 R* KG
0019 H* RT
0020 H* FC
0037 Y* YG