7KZB Unmatched Contacts: 2 - C LYS 417 NZ VS B SER 52 O Distance: 2.9860401872714295 - Hydrogen Bonds, 3 - C LYS 417 NZ VS B SER 52 OG Distance: 3.1793692770736777 - Hydrogen Bonds, 7KZB_brazil_mut Unmatched Contacts: