Matrix of similar interfaces for 3D-footprint entry 4r4e_B

_ stats: contacts=4 Nring=3 specif=0.75
_ PDBs:  1:6ldi_G,
_ -lnE:  1:10.5,
_        1
0025 R* KG
0028 R* RT
0029 Y  FC
0045 R* YG