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Gene Synthesis by Self-Assembly of Small Oligonucleotide Building Blocks
Gene Synthesis by Self-Assembly of Small Oligonucleotide Building Blocks
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机译:小寡核苷酸构件的自组装基因合成。
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摘要
The invention provides a process for synthesizing genes and other long double stranded polynucleotides by assembling very short oligonucleotides into partly double stranded polynucleotides, and then connecting these partly double stranded polynucleotide subassemblies with linkers comprised of very short oligonucleotides. In one embodiment, the correct order of the polynucleotide subassemblies is coded in overhangs present at each end of the partly double stranded polynucleotide subassemblies. Linkers having a sequence complimentary to the combined overhangs connect adjacent subassemblies, which are then ligated together. In one preferred embodiment the oligos are six bases long, for which there are only 4096 different possible sequence permutations. A complete library of oligos of this size and scale can be cost-effectively synthesized and quality controlled, avoiding the typical errors and yield issues associated with phosphoramidite synthesis of longer oligos. Furthermore, the limited oligo library size supports development of a laboratory-scale gene synthesis machine.
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