Acyclic Identification of Aptamers for Human alpha-Thrombin Using Over-Represented Libraries and Deep Sequencing
2011

Finding Aptamers for Human Thrombin Using New Methods

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Author Information

Author(s): Kupakuwana Gillian V., Crill James E. II, McPike Mark P., Borer Philip N.

Primary Institution: Syracuse University

Hypothesis

Can over-representation of sequences in aptamer libraries and deep sequencing enable faster identification of aptamers?

Conclusion

The study shows that using over-representation and deep sequencing can significantly speed up the aptamer discovery process and improve the identification of high-affinity aptamers.

Supporting Evidence

  • Aptamers can be produced at a lower cost than antibodies.
  • The method allows for multiplexing of sequencing experiments.
  • High affinity sequences were identified with a signal-to-noise ratio of roughly 10,000:1.
  • Over-representation of sequences enables a more exhaustive search of the sequence space.

Takeaway

Scientists found a faster way to discover special molecules called aptamers that can stick to proteins, which can help in medicine.

Methodology

The study used a library of DNA sequences with a specific design to identify aptamers for human thrombin through deep sequencing.

Potential Biases

Potential biases in sequence representation due to library synthesis methods.

Limitations

The study may not account for all possible aptamer sequences due to the limitations of the library design.

Statistical Information

P-Value

12 nM for Thb1

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0019395

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