Part:BBa_K174001:Design
215 bp long bindingsite_promoter_bindingsite_RBS is amplified by PCR with dangling end primers with EcoRI-NotI-XbaI restriction site at 5’ and SpeI at 3’ and inserted into a Biobrick compatible vector. The sequence is taken from wildtype Bacillus subtilis.
Forward primer used: GATCTG-GAATTCGCGGCCGCTTCTAGAG-CACAGCGTTCTTTGTAAG (Clamp sequence - Standard Biobrick prefix - first 18 base from the Biobrick)
Reverse primer used: TGTGAC-ACTAGTA-GCCCTCCCGAATGTTGAG (Clamp sequence - SpeI site - last 18 base from the Biobrick)
Construction
Plasmid part BBa_J04450 (pSB1AT3) and our construct were treated with EcoRI and SpeI
The backbone and the ara insert were then ligated
Spacing between the RBS and downstream CDSs
To make the RBS efficient, 7 bases are needed between the RBS and CDS. The scar between the biobricks will already have the 6 bases and we left one base after the rbs to total it to 7 bases.