Matrix of similar interfaces for 3D-footprint entry 8j91_C

_ stats: contacts=6 Nring=1 specif=0.17
_ PDBs:  1:8upf_G,2:7yqk_C,3:7kbd_C,4:6a5l_g,5:8rbx_V,6:7e9c_F,7:7nkx_f,
_ PDBs:  8:7ccr_A,9:7zs9_e,10:7unc_a,11:6px1_A,12:7ux9_E,13:7cvo_A,14:3wkj_D,
_ PDBs:  15:7y7i_E,
_ -lnE:  1:13.5,2:13.5,3:13.5,4:13.5,5:13.5,6:10.1,7:10.0,8:9.8,9:9.8,
_ -lnE:  10:9.8,11:9.8,12:9.8,13:9.5,14:9.3,15:8.9,
_        1 2 3 4 5 6 7 8 9101112131415
0013 G  ------------------LA------IT--
0016 A  --------HG--------------KT----
0020 K  --------RT--------------------
0027 R* RGRCRTRARGRA--RGRTRGRTRC----RG
0061 T  ------------KG----------------
0062 R  ------RA----------------------