Matrix of similar interfaces for 3D-footprint entry 2han_A

_ stats: contacts=5 Nring=4 specif=0.80
_ PDBs:  1:5e69_A,2:1hcq_E,
_ -lnE:  1:11.1,2:10.6,
_        1 2
0021 E* --EC
0024 K* KAKG
0025 G  VAAG
0028 K* --KG
0029 R* RARG