Matrix of similar interfaces for 3D-footprint entry 7f2f_B

_ stats: contacts=5 Nring=2 specif=0.40
_ PDBs:  1:7z5k_B,
_ -lnE:  1:7.9,
_        1
0004 Q  RG
0008 H* TT
0010 K  RG
0011 I* EC
0014 R  RC