Matrix of similar interfaces for 3D-footprint entry 6qec_A

_ stats: contacts=6 Nring=4 specif=0.67
_ PDBs:  1:2kdz_A,2:4xrm_B,
_ -lnE:  1:7.9,2:7.7,
_        1 2
0050 E* NG--
0054 S* NANC
0057 Q* --IC
0058 K* --NA
0061 L  --RG
0062 Y  --RG