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

_ stats: contacts=3 Nring=0 specif=-1.00
_ PDBs:  1:8r0s_A,2:4hkq_A,3:8oz7_A,
_ -lnE:  1:16.4,2:14.6,3:7.6,
_        1 2 3
0307 Q  FA----
0313 G  --PG--
0340 T  --YTYA