Journal of Bioscience and Bioengineering, Vol.123, No.3, 347-352, 2017
Engineering Escherichia coli to bind to cyanobacteria
We engineered Escherichia coli cells to bind to cyanobacteria by heterologously producing and displaying lectins of the target cyanobacteria on their surface. To prove the efficacy of our approach, we tested this design on Micro cystis aeruginosa with microvirin (Mvn), the lectin endogenously produced by this cyanobacterium. The coding sequence of Mvn was C-terminally fused to the ice nucleation protein NC (INPNC) gene and expressed in E. coll. Results showed that E. colt cells expressing the INPNC::Mvn fusion protein were able to bind to M. aeruginosa and the average number of E. colt cells bound to each cyanobacterial cell was enhanced 8-fold. Finally, a computational model was developed to simulate the binding reaction and help reconstruct the binding parameters. To our best knowledge, this is the first report on the binding of two organisms in liquid culture mediated by the surface display of lectins and it may serve as a novel approach to mediate microbial adhesion. (C) 2016, The Society for Biotechnology, Japan. All rights reserved.