Matrix of similar interfaces for 3D-footprint entry 7w7l_B

_ stats: contacts=7 Nring=6 specif=0.86
_ PDBs:  1:1svc_P,
_ -lnE:  1:34.9,
_        1
0018 R* RC
0020 R* RC
0021 Y* YC
0024 E* EC
0028 H* HC
0187 K* KT
0249 K  RG