Matrix of similar interfaces for 3D-footprint entry 8u13_G

_ stats: contacts=5 Nring=1 specif=0.20
_ PDBs:  1:7kbd_C,2:7nkx_f,3:7xyf_B,4:3wkj_D,5:7cvo_A,6:7ccr_A,7:7unc_a,
_ PDBs:  8:3kwq_E,9:7zs9_e,10:6iy2_A,11:4xzq_E,12:7y7i_E,13:5z23_C,14:7on1_c,
_ -lnE:  1:15.2,2:11.6,3:11.0,4:10.5,5:10.4,6:9.7,7:9.6,8:9.6,9:9.6,
_ -lnE:  10:9.5,11:9.4,12:8.5,13:7.9,14:7.1,
_        1 2 3 4 5 6 7 8 91011121314
0003 A  KG--------------------------
0017 G  ------IT----LALT----LT------
0020 H  --------KT------------------
0031 R* RT--RC----RGRGRCRTRGRCRGRTRC
0065 T  --KG------------------------