Table 2. Electrostatic interactions of promirolysin at the PS–mature enzyme interface.

The first residue/atom belongs to the PS, the second to the CD. The distances are from the native promirolysin structure (PDB entry 6r7v).

Salt bridges (Å)
Arg21 Nη2–Asp289 Oδ1	2.81
Glu47 O∊1–Arg302 Nη2	2.77
Glu47 O∊2–Arg302 Nη1	2.86
Metallorganic interactions (Å)
Cys23 Sγ–Zn999	2.22
Hydrogen bonds (Å)
Arg21 N⋯Tyr216 Oη	3.11
Arg21 N⋯Tyr286 O	3.32
Arg21 N∊⋯Thr287 O	3.44
Arg21 Nη1⋯Thr221 Oγ1	3.02
Arg21 Nη2⋯Thr287 O	2.95
Thr22 Oγ1⋯Asp179 O	2.55
Thr22 Oγ1⋯Leu181 N	2.90
Thr22 O⋯Gly182 N	3.98
Gly24 N⋯Gly182 O	3.05
Gly24 O⋯Met147 Sδ	3.24
Ser25 Oγ⋯Ala184 N	2.86
Ser25 Oγ⋯Ala184 O	2.84
Glu26 O∊1⋯Tyr286 Oη	2.73
Leu27 N⋯Asp238 Oδ2	2.87
Asn28 Nδ2⋯Asp238 O	3.25
Trp46 N∊1⋯Asp231 Oδ1	3.46
Trp46 N∊1⋯Asp231 Oδ2	2.92