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RBS library parts K1725301-K1725332
Parts K1725301-K1725332 are members of ribosome binding site library derived from Anderson-family RBS B0032 (BBa_B0032). All 32 sequences were obtained by randomised PCR.
Design
For the construction of the RBS library, a master sequence based on the RBS B0032 was used. 4 nucleotides within the actual ribosome binding site were randomised giving 32 different B0032-derived RBS variants. The predicted efficiency of each RBS library member was estimated using RBS Library Calculator. Originally, RBS Library was designed for every gene in luxABGCDE operon (BBa_K1725352) in order to optimise bioluminescence in E. coli. 32 different BioBrick RBS variants were incorporated upstream of each of the lux genes by PCR, and different libraries were then combined together by BioBrick assembly. This method could potentially produce over 1 billion different variants of the lux operon. The developed method was relatively quick, and could easily be used to optimize other metabolic pathways where a suitable screen or selection for optimal performance is available.
B0032-derived RBS library members
