Matrix of similar interfaces for 3D-footprint entry 3gx4_X

_ stats: contacts=5 Nring=2 specif=0.40
_ PDBs:  1:2o8k_A,
_ -lnE:  1:7.8,
_        1
0024 Y  DT
0037 A  RT
0038 R* RG
0039 Q* TT
0042 Q  KT