A template DNA encoding a target protein needs to be prepared by customers.

For the template DNA, you need to consider following features.

• T7 promoter and ribosome binding site (Shine-Dalgarno sequence) are needed upstream of the gene of interest.
• All stop codons (amber (TAG), ocher (TAA) and opal (TGA)) are available.
• More than 10 nucleotides are necessary downstream of the stop codon.
• Both circular and linear DNA (such as PCR product or plasmid DNA digested by restriction enzyme) are available.
• T7 terminator is required downstream of the gene of interest for circular DNA.
• T7 terminator is not necessary for linear DNA.

We have further information about template DNA, please check our FAQ site.

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