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A colorimetric ATP assay based on the use of a magnesium(II)-dependent DNAzyme.
Mikrochim Acta. 2019 02 15; 186(3):176.MA

Abstract

A colorimetric assay for ATP is described that uses a strategy that combines the concept of split Mg(II)-dependent DNAzyme, split aptamer, and hybridization-induced aggregation of gold nanoparticles (AuNPs). Both ATP aptamer and Mg(II)-dependent DNAzyme are split into two fragments which are allocated to two well-designed DNA probes. The probes also possess mutually complementary stem sequences and spacer sequences. In the presence of ATP, the separated DNAzyme sequences in the two probes assemble via the synchronous recognition of ATP with two fragments of the aptamer. Then, the activated DNAzyme catalyzes multiple cycles of the cleavage of its substrate DNA sequence. The latter acts as a linker and induces the aggregation of two types of ssDNA-modified AuNP through the hybridization between the complementary sequences. Thus, the color of the AuNP solution remains red. However, in the absence of ATP, the detached aptamer cannot induce the assembly of DNAzyme to cleave the linker DNA. This results in the aggregation of AuNP and a concomitant color transition from red to purple. This ATP assay, performed at a wavelength of 530 nm, has a linear detection range that extends from 10 pM to 100 nM, with a detection limit of 5.3 pM. It was applied to the detection of ATP in human serum. Conceivably, the strategy has a wide scope in that it may be applied to the colorimetric detection of various other analytes through the split aptamer configuration. Graphical abstract Schematic presentation of colorimetric assay for adenosine triphosphate (ATP) based on the use of a split Mg(II)-dependent DNAzyme, a split aptamer, and by exploiting the hybridization-induced aggregation of gold nanoparticles that leads to a color change from red to purple.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zhu S
Department of Oncology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, 214000, China. Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Wang X
Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. Department of Oncology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China.
Jing C
The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiang nan University, Wuxi, 214122, China.
Yin Y
Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. yinym_njmu@163.com.
Zhou N
The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiang nan University, Wuxi, 214122, China. zhounandi@jiangnan.edu.cn.

MeSH

Adenosine TriphosphateAptamers, NucleotideBase SequenceBiosensing TechniquesColorColorimetryDNA ProbesDNA, CatalyticDNA, Single-StrandedGoldHumansLimit of DetectionMagnesiumMetal NanoparticlesNucleic Acid Hybridization

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

30771011

Citation

Zhu, Sha, et al. "A Colorimetric ATP Assay Based On the Use of a magnesium(II)-dependent DNAzyme." Mikrochimica Acta, vol. 186, no. 3, 2019, p. 176.
Zhu S, Wang X, Jing C, et al. A colorimetric ATP assay based on the use of a magnesium(II)-dependent DNAzyme. Mikrochim Acta. 2019;186(3):176.
Zhu, S., Wang, X., Jing, C., Yin, Y., & Zhou, N. (2019). A colorimetric ATP assay based on the use of a magnesium(II)-dependent DNAzyme. Mikrochimica Acta, 186(3), 176. https://doi.org/10.1007/s00604-019-3244-9
Zhu S, et al. A Colorimetric ATP Assay Based On the Use of a magnesium(II)-dependent DNAzyme. Mikrochim Acta. 2019 02 15;186(3):176. PubMed PMID: 30771011.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A colorimetric ATP assay based on the use of a magnesium(II)-dependent DNAzyme. AU - Zhu,Sha, AU - Wang,Xiaoying, AU - Jing,Cheng, AU - Yin,Yongmei, AU - Zhou,Nandi, Y1 - 2019/02/15/ PY - 2018/10/23/received PY - 2019/01/05/accepted PY - 2019/2/17/entrez PY - 2019/2/17/pubmed PY - 2019/4/2/medline KW - Aptasensor KW - Colorimetric detection KW - DNA probe KW - Gold nanoparticles KW - Label-free biosensor KW - Linker DNA KW - Metal-ion dependent enzyme KW - Serum analysis KW - Split aptamer SP - 176 EP - 176 JF - Mikrochimica acta JO - Mikrochim Acta VL - 186 IS - 3 N2 - A colorimetric assay for ATP is described that uses a strategy that combines the concept of split Mg(II)-dependent DNAzyme, split aptamer, and hybridization-induced aggregation of gold nanoparticles (AuNPs). Both ATP aptamer and Mg(II)-dependent DNAzyme are split into two fragments which are allocated to two well-designed DNA probes. The probes also possess mutually complementary stem sequences and spacer sequences. In the presence of ATP, the separated DNAzyme sequences in the two probes assemble via the synchronous recognition of ATP with two fragments of the aptamer. Then, the activated DNAzyme catalyzes multiple cycles of the cleavage of its substrate DNA sequence. The latter acts as a linker and induces the aggregation of two types of ssDNA-modified AuNP through the hybridization between the complementary sequences. Thus, the color of the AuNP solution remains red. However, in the absence of ATP, the detached aptamer cannot induce the assembly of DNAzyme to cleave the linker DNA. This results in the aggregation of AuNP and a concomitant color transition from red to purple. This ATP assay, performed at a wavelength of 530 nm, has a linear detection range that extends from 10 pM to 100 nM, with a detection limit of 5.3 pM. It was applied to the detection of ATP in human serum. Conceivably, the strategy has a wide scope in that it may be applied to the colorimetric detection of various other analytes through the split aptamer configuration. Graphical abstract Schematic presentation of colorimetric assay for adenosine triphosphate (ATP) based on the use of a split Mg(II)-dependent DNAzyme, a split aptamer, and by exploiting the hybridization-induced aggregation of gold nanoparticles that leads to a color change from red to purple. SN - 1436-5073 UR - https://www.unboundmedicine.com/medline/citation/30771011/A_colorimetric_ATP_assay_based_on_the_use_of_a_magnesium_II__dependent_DNAzyme_ DB - PRIME DP - Unbound Medicine ER -