“…Several structures of chicken-type lysozymes (Moult et al, 1976;Aschaffenburg et al, 1980;Hogle et al, 1981;Artymiuk & Blake, 1981;Artymiuk, Blake, Rice & Wilson, 1982;Berthou, Lifchitz, Artymiuk & Jolles, 1983;Kundrot & Richards, 1987;Kodandapani, Suresh & Vijayan, 1990), including antigen-antibody complexes (Amit, Mariuzza, Phillips & Poljak, 1986;Sheriff et al, 1987), have been reported. The active site of HEL consists of six subsites designated A to F and binds not only substrate polysaccharides but also mono-and oligosaccharides of substrate analogues (Blake et al, 1967;Kelly, Sielecki, Sykes, James & Phillips, 1979).…”