Matrix of similar interfaces for 3D-footprint entry 3u2b_C

_ stats: contacts=10 Nring=9 specif=0.90
_ PDBs:  1:4s2q_D,2:1hry_A,3:1j5n_A,4:1o4x_B,
_ -lnE:  1:11.5,2:10.9,3:10.5,4:10.3,
_        1 2 3 4
0004 R* RT--RTRT
0007 N* NTNASANT
0009 F* FTFTYCFT
0010 M* MAIAMTMA
0017 R* RARC--RA
0029 N* NG--FTNA
0030 A* ACSG--SC
0032 I  --IC----
0033 S* STST--ST
0071 Y* YAYA--YA