The K5 Lyase Kfla Combines a Viral Tail Spike Structure with a Bacterial Polysaccharide Lyase Mechanism.
Thompson, J.E., Pourhossein, M., Waterhouse, A., Hudson, T., Goldrick, M., Derrick, J.P., Roberts, I.S.(2010) J Biol Chem 285: 23963
- PubMed: 20519506 
- DOI: 10.1074/jbc.M110.127571
- Primary Citation of Related Structures:  
2X3H - PubMed Abstract: 
K5 lyase A (KflA) is a tail spike protein (TSP) encoded by a K5A coliphage, which cleaves K5 capsular polysaccharide, a glycosaminoglycan with the repeat unit [-4)-betaGlcA-(1,4)- alphaGlcNAc(1-], displayed on the surface of Escherichia coli K5 strains. The crystal structure of KflA reveals a trimeric arrangement, with each monomer containing a right-handed, single-stranded parallel beta-helix domain ...