Difference between revisions of "Part:BBa K1463601"

Revision as of 16:50, 1 November 2014

FliC with RBS

FliC with B0034 RBS

FliC encodes the major flagellar protein of E. coli and is thus fundamental to motility.

See Fig 1C for motility swarm assay results showing the function of this biobrick. In a fliC knockout strain, this biobrick alone was not enough to restore swimming. A promoter is necessary to drive fliC expression. When used in conjunction with various promoters (J23106 and J23116) and B0032 ribosome binding site, this biobrick was shown to restore swimming in fliC knockout strains (See Figures 1 & 2).

Flic Motility Swarm Assay

Figure 1: FliC Swarm Motility Assays.
(A) DS941, (B) DS941 ΔfliC,
(C) DS941 ΔfliC + pSB1C3 fliC (no promoter), (D) DS941 ΔfliC + J23100 (mutant promoter) fliC,
(E) DS941 ΔfliC + J23116-fliC(1), (F) DS941 ΔfliC + J23116-fliC(2),
(G) DS941 ΔfliC + J23106-fliC(1), (H) DS941 ΔfliC + J23106-fliC(2)

Figure 2 - FliC Motility Histogram The promoters indicated in the histogram were used to drive the fliC biobrick K1463600 with the RBS B0034. Plasmids containing these constructs were used to complement a chromosomal fliC mutation. The diameter of swimming in a 16 hour swarm assay at 37 degrees is shown. The error bars indicate the range or results obtained in two repeats of the experiment. The strong J23100 promoter in this result contained a mutation rendering it inactive see K1463604.

For more information on the biobrick and methods used go to http://2014.igem.org/wiki/index.php?title=Team:Glasgow/Project/Mobility_Proteins#fliC

Sequence and Features