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

_ stats: contacts=9 Nring=4 specif=0.44
_ PDBs:  1:4iem_C,2:4b5f_A,3:4gz1_B,4:4pei_D,
_ -lnE:  1:35.1,2:31.1,3:18.2,4:11.5,
_        1 2 3 4
0029 D  ------HA
0057 K  ------QA
0136 R* RGSC----
0181 N  --NT----
0188 N* NGNG----
0228 Y  YGNG----
0229 M* MGRG----
0230 M* MA------
0237 V  ----YC--