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Guo J, Wang D, Pantatosaki E, Kuang H, Papadopoulos GK, Tsapatsis M, Kokkoli E. A Localized Enantioselective Catalytic Site on Short DNA Sequences and Their Amphiphiles. JACS AU 2022; 2:483-491. [PMID: 35252997 PMCID: PMC8889555 DOI: 10.1021/jacsau.1c00513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Indexed: 06/14/2023]
Abstract
A DNA-based artificial metalloenzyme (ArM) consisting of a copper(II) complex of 4,4'-dimethyl-2,2'-bipyridine (dmbipy-Cu) bound to double-stranded DNA (dsDNA) as short as 8 base pairs with only 2 contiguous central pairs (G for guanine and C for cytosine) catalyzes the highly enantioselective Diels-Alder reaction, Michael addition, and Friedel-Crafts alkylation in water. Molecular simulations indicate that these minimal sequences provide a single site where dmbipy-Cu is groove-bound and able to function as an enantioselective catalyst. Enantioselective preference inverts when d-DNA is replaced with l-DNA. When the DNA is conjugated to a hydrophobic tail, the obtained ArMs exhibit enantioselective performance in a methanol-water mixture superior to that of non-amphiphilic dsDNA, and dsDNA-amphiphiles with more complex G•C-rich sequences.
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Affiliation(s)
- Jun Guo
- Institute
for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Danyu Wang
- Institute
for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department
of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Evangelia Pantatosaki
- School
of Chemical Engineering, National Technical
University of Athens, 15780 Athens, Greece
| | - Huihui Kuang
- Institute
for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - George K. Papadopoulos
- School
of Chemical Engineering, National Technical
University of Athens, 15780 Athens, Greece
- Institute
for Medical Engineering and Science, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael Tsapatsis
- Institute
for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department
of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Applied
Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723, United States
| | - Efrosini Kokkoli
- Institute
for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department
of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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