Matrix of similar interfaces for 3D-footprint entry 7wnh_D

_ stats: contacts=5 Nring=4 specif=0.80
_ PDBs:  1:5krb_G,2:4umm_E,
_ -lnE:  1:11.4,2:10.6,
_        1 2
0018 E* ECEA
0021 K* KGKG
0025 K* --RT
0026 R* RART
0050 N  --RT