Matrix of similar interfaces for 3D-footprint entry 2c7a_B

_ stats: contacts=6 Nring=3 specif=0.50
_ PDBs:  1:8cef_H,2:1a6y_A,3:1lat_A,4:2han_A,
_ -lnE:  1:11.3,2:10.9,3:10.8,4:7.4,
_        1 2 3 4
0015 H  --HA----
0022 G  ECECETEA
0025 K* KGKGKGKG
0026 V* AG--AT--
0029 K  KGRG--KT
0030 R* RGRGRGRG