Surface display of GFP by Pseudomonas syringae truncated ice nucleation protein in attenuated Vibrio anguillarum strain.
Microbial cell surface display of foreign proteins has been widely developed for many potential applications in live vaccine construction, whole-cell biocatalysts, and bioadsorption. To investigate the feasibility of displaying heterologous proteins on the surface of attenuated Vibrio anguillarum strain for potential multivalent live vaccine development, different display systems were built upon a truncated ice nucleation protein (INP) from Pseudomonas syringae ICMP3023 whose N- and C-terminal domains were considered to be the putative membrane-anchoring motifs. Green fluorescent protein (GFP), as a reporter, was fused with the display systems in different forms of N-GFP, NC-GFP, and N-GFP-C. Analysis of the total expression level and surface localization of GFP demonstrated that the truncated P. syringae INP could be used to display foreign protein in V. anguillarum, while the system of N-GFP showed the higher levels of total expression and surface display based on unit cell density among the three and might be available for further carrier vaccine development.
State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China.
Yuzhou
Y
Xu
Qin
Q
Liu
Lingyun
L
Zhou
Zhao
Z
Yang
Yuanxing
Y
Zhang
D001425:Bacterial Outer Membrane Proteins / Q000235:genetics / Q000378:metabolism*; D015870:Gene Expression; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism*; D010957:Plasmids; D015202:Protein Engineering; D044224:Pseudomonas syringae / Q000235:genetics / Q000378:metabolism*; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism*; D014733:Vibrio / Q000235:genetics / Q000378:metabolism*
D001425:Bacterial Outer Membrane Proteins; D011993:Recombinant Fusion Proteins; C063113:ice nucleation protein; D049452:Green Fluorescent Proteins