Matrix of similar interfaces for 3D-footprint entry 4u7d_A

_ stats: contacts=7 Nring=0 specif=-1.00
_ PDBs:  1:6kw4_Y,2:6el8_A,
_ -lnE:  1:17.0,2:10.5,
_        1 2
0284 N  SC--
0310 A  RG--
0477 E  --NG
0478 K  --SA
0480 I  --RG
0481 A  --HG
0484 L  --SC