Matrix of similar interfaces for 3D-footprint entry 2irf_L

_ stats: contacts=5 Nring=4 specif=0.80
_ PDBs:  1:8smh_F,
_ -lnE:  1:9.6,
_        1
0070 K* QC
0071 T  KT
0074 A* RG
0075 N* AT
0078 C* RG