Matrix of similar interfaces for 3D-footprint entry 4x23_D

_ stats: contacts=3 Nring=0 specif=-1.00
_ PDBs:  1:6g0l_D,2:5x0y_G,3:1zla_C,4:8jla_C,5:8u14_G,6:6a5l_g,7:8ox0_C,
_ PDBs:  8:6qld_f,9:8txv_G,10:7xsx_a,11:8grq_A,12:8hr1_E,
_ -lnE:  1:13.4,2:11.4,3:11.2,4:11.2,5:11.0,6:11.0,7:11.0,8:10.6,
_ -lnE:  9:10.6,10:10.3,11:9.7,12:9.5,
_        1 2 3 4 5 6 7 8 9101112
0018 G  --RGRARGRTRARGRCRGRARTRT
0051 R  RA----------------------
0053 T  ----------RA------------