Matrix of similar interfaces for 3D-footprint entry 1a31_A

_ stats: contacts=8 Nring=6 specif=0.75
_ PDBs:  1:1a31_A,2:3m4a_A,
_ -lnE:  1:29.5,2:18.6,
_        1 2
0149 R* RG--
0211 Y* YA--
0213 M* MC--
0251 K  --RG
0276 N* NC--
0317 K* KA--
0329 E  --RG
0414 N* NT--