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

_ stats: contacts=7 Nring=4 specif=0.57
_ PDBs:  1:7xi3_B,2:2ypa_A,
_ -lnE:  1:20.9,2:10.2,
_        1 2
0008 K  --RT
0011 S* TA--
0012 R  --NT
0014 A  --RG
0015 A* SAEC
0018 R* RGRC
0019 R* RGQT