Antibody activation using DNA-based logic gates. Janssen, B. M G, van Rosmalen, M., van Beek, L., & Merkx, M. Angew Chem Int Ed Engl, 54(8):2530–2533, Germany, January, 2015. abstract bibtex Oligonucleotide-based molecular circuits offer the exciting possibility to introduce autonomous signal processing in biomedicine, synthetic biology, and molecular diagnostics. Here we introduce bivalent peptide-DNA conjugates as generic, noncovalent, and easily applicable molecular locks that allow the control of antibody activity using toehold-mediated strand displacement reactions. Employing yeast as a cellular model system, reversible control of antibody targeting is demonstrated with low nM concentrations of peptide-DNA locks and oligonucleotide displacer strands. Introduction of two different toehold strands on the peptide-DNA lock allowed signal integration of two different inputs, yielding logic OR- and AND-gates. The range of molecular inputs could be further extended to protein-based triggers by using protein-binding aptamers.
@ARTICLE{Janssen2015-wk,
title = "Antibody activation using {DNA-based} logic gates",
author = "Janssen, Brian M G and van Rosmalen, Martijn and van Beek, Lotte
and Merkx, Maarten",
abstract = "Oligonucleotide-based molecular circuits offer the exciting
possibility to introduce autonomous signal processing in
biomedicine, synthetic biology, and molecular diagnostics. Here
we introduce bivalent peptide-DNA conjugates as generic,
noncovalent, and easily applicable molecular locks that allow the
control of antibody activity using toehold-mediated strand
displacement reactions. Employing yeast as a cellular model
system, reversible control of antibody targeting is demonstrated
with low nM concentrations of peptide-DNA locks and
oligonucleotide displacer strands. Introduction of two different
toehold strands on the peptide-DNA lock allowed signal
integration of two different inputs, yielding logic OR- and
AND-gates. The range of molecular inputs could be further
extended to protein-based triggers by using protein-binding
aptamers.",
journal = "Angew Chem Int Ed Engl",
volume = 54,
number = 8,
pages = "2530--2533",
month = jan,
year = 2015,
address = "Germany",
keywords = "DNA nanotechnology; antibodies; aptamers; molecular computing;
peptide-oligonucleotide conjugates",
language = "en"
}
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