U.S. Department of Energy Office of Biological and Environmental Research

BER Research Highlights

Designing Aptamers to Control Chemical Reactions
Published: December 28, 2009
Posted: January 06, 2010

Aptamers are short single stranded molecules made up of nucleic acids (RNA and DNA) or peptides that bind, like antibodies, to specific target molecules. However, unlike antibodies they can be completely engineered and synthesized in a test tube for a variety of functions. Marit Nilsen-Hamilton's research group at the Ames Laboratory has led to a new approach for controlling metabolic pathways using aptamers. They discovered that it is possible to develop aptamers, using computational modeling of the aptamer structure, that completely protect target molecules from chemical modification. These results suggest that aptamers might be engineered for use inside cells to alter the flow of chemicals through metabolic pathways with the potential to alter plants or microbes for improved production of biofuels.

Reference: T. Wang, et al., "Computational and Experimental Analyses Converge to Reveal a Coherent Yet Malleable Aptamer Structure That Controls Chemical Reactivity," Journal of American Chemical Society (2009) 131, 14747-14755.

Contact: Prem Srivastava, SC-23.2, (301) 903-4071
Topic Areas:

  • Research Area: Genomic Analysis and Systems Biology
  • Research Area: Microbes and Communities
  • Research Area: Plant Systems and Feedstocks, Plant-Microbe Interactions
  • Research Area: Sustainable Biofuels and Bioproducts
  • Research Area: Biosystems Design
  • Research Area: Computational Biology, Bioinformatics, Modeling

Division: SC-23.2 Biological Systems Science Division, BER


BER supports basic research and scientific user facilities to advance DOE missions in energy and environment. More about BER

Recent Highlights

May 10, 2019
Quantifying Decision Uncertainty in Water Management via a Coupled Agent-Based Model
Considering risk perception can improve the representation of human decision-making processes in age [more...]

May 09, 2019
Projecting Global Urban Area Growth Through 2100 Based on Historical Time Series Data and Future Scenarios
Study provides country-specific urban area growth models and the first dataset on country-level urba [more...]

May 05, 2019
Calibrating Building Energy Demand Models to Refine Long-Term Energy Planning
A new, flexible calibration approach improved model accuracy in capturing year-to-year changes in bu [more...]

May 03, 2019
Calibration and Uncertainty Analysis of Demeter for Better Downscaling of Global Land Use and Land Cover Projections
Researchers improved the Demeter model’s performance by calibrating key parameters and establi [more...]

Apr 22, 2019
Representation of U.S. Warm Temperature Extremes in Global Climate Model Ensembles
Representation of warm temperature events varies considerably among global climate models, which has [more...]

List all highlights (possible long download time)