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Carlson CK, Loveless TB, Milisavljevic M, Kelly PI, Mills JH, Tyo KEJ, Liu CC. A Massively Parallel In Vivo Assay of TdT Mutants Yields Variants with Altered Nucleotide Insertion Biases. ACS Synth Biol 2024. [PMID: 39302688 DOI: 10.1021/acssynbio.4c00414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
Terminal deoxynucleotidyl transferase (TdT) is a unique DNA polymerase capable of template-independent extension of DNA. TdT's de novo DNA synthesis ability has found utility in DNA recording, DNA data storage, oligonucleotide synthesis, and nucleic acid labeling, but TdT's intrinsic nucleotide biases limit its versatility in such applications. Here, we describe a multiplexed assay for profiling and engineering the bias and overall activity of TdT variants with high throughput. In our assay, a library of TdTs is encoded next to a CRISPR-Cas9 target site in HEK293T cells. Upon transfection of Cas9 and sgRNA, the target site is cut, allowing TdT to intercept the double-strand break and add nucleotides. Each resulting insertion is sequenced alongside the identity of the TdT variant that generated it. Using this assay, 25,623 unique TdT variants, constructed by site-saturation mutagenesis at strategic positions, were profiled. This resulted in the isolation of several altered-bias TdTs that expanded the capabilities of our TdT-based DNA recording system, Cell HistorY Recording by Ordered InsertioN (CHYRON), by increasing the information density of recording through an unbiased TdT and achieving dual-channel recording of two distinct inducers (hypoxia and Wnt) through two differently biased TdTs. Select TdT variants were also tested in vitro, revealing concordance between each variant's in vitro bias and the in vivo bias determined from the multiplexed high throughput assay. Overall, our work and the multiplex assay it features should support the continued development of TdT-based DNA recorders, in vitro applications of TdT, and further study of the biology of TdT.
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Affiliation(s)
- Courtney K Carlson
- Department of Biomedical Engineering, University of California, Irvine, California 92697, United States
- Center for Synthetic Biology, University of California, Irvine, California 92697, United States
| | - Theresa B Loveless
- Department of Biomedical Engineering, University of California, Irvine, California 92697, United States
- Center for Synthetic Biology, University of California, Irvine, California 92697, United States
- Department of BioSciences, Rice University, Houston, Texas 77005, United States
| | - Marija Milisavljevic
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Patrick I Kelly
- Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 82587, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 82587, United States
| | - Jeremy H Mills
- Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 82587, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 82587, United States
| | - Keith E J Tyo
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Chang C Liu
- Department of Biomedical Engineering, University of California, Irvine, California 92697, United States
- Center for Synthetic Biology, University of California, Irvine, California 92697, United States
- Department of Molecular Biology & Biochemistry, University of California, Irvine, California 92697, United States
- Department of Chemistry, University of California, Irvine, California 92697, United States
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2
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Liu X, Yuan W, Xiao H. Recent progress on DNAzyme-based biosensors for pathogen detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4917-4937. [PMID: 38984495 DOI: 10.1039/d4ay00934g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Pathogens endanger food safety, agricultural productivity, and human health. Those pathogens are spread through direct/indirect contact, airborne transmission and food/waterborne transmission, and some cause severe health consequences. As the population grows and global connections intensify, the transmission of infectious diseases expands. Traditional detection methods for pathogens still have some shortcomings, such as time-consuming procedures and high operational costs. To fulfil the demands for simple and effective detection, numerous biosensors have been developed. DNAzyme, a unique DNA structure with catalytic activity, is gradually being applied in the field of pathogen detection owing to its ease of preparation and use. In this review, we concentrated on the two main types of DNAzyme, hemin/G-quadruplex DNAzyme (HGD) and RNA-cleaving DNAzyme (RCD), explaining their research progress in pathogen detection. Furthermore, we introduced two additional novel DNAzymes, CLICK 17 DNAzyme and Supernova DNAzyme, which showed promising potential in pathogen detection. Finally, we summarize the strengths and weaknesses of these four DNAzymes and offer feasible recommendations for the development of biosensors.
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Affiliation(s)
- Xingxing Liu
- Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, 510632, China.
- Department of Immunology and Microbiology, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Wenxu Yuan
- Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, 510632, China.
- Department of Immunology and Microbiology, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Heng Xiao
- Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, 510632, China.
- Department of Immunology and Microbiology, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
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3
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Carlson CK, Loveless TB, Milisavljevic M, Kelly PI, Mills JH, Tyo KEJ, Liu CC. A massively parallel in vivo assay of TdT mutants yields variants with altered nucleotide insertion biases. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.11.598561. [PMID: 38915690 PMCID: PMC11195295 DOI: 10.1101/2024.06.11.598561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Terminal deoxynucleotidyl transferase (TdT) is a unique DNA polymerase capable of template-independent extension of DNA with random nucleotides. TdT's de novo DNA synthesis ability has found utility in DNA recording, DNA data storage, oligonucleotide synthesis, and nucleic acid labeling, but TdT's intrinsic nucleotide biases limit its versatility in such applications. Here, we describe a multiplexed assay for profiling and engineering the bias and overall activity of TdT variants in high throughput. In our assay, a library of TdTs is encoded next to a CRISPR-Cas9 target site in HEK293T cells. Upon transfection of Cas9 and sgRNA, the target site is cut, allowing TdT to intercept the double strand break and add nucleotides. Each resulting insertion is sequenced alongside the identity of the TdT variant that generated it. Using this assay, 25,623 unique TdT variants, constructed by site-saturation mutagenesis at strategic positions, were profiled. This resulted in the isolation of several altered-bias TdTs that expanded the capabilities of our TdT-based DNA recording system, Cell History Recording by Ordered Insertion (CHYRON), by increasing the information density of recording through an unbiased TdT and achieving dual-channel recording of two distinct inducers (hypoxia and Wnt) through two differently biased TdTs. Select TdT variants were also tested in vitro , revealing concordance between each variant's in vitro bias and the in vivo bias determined from the multiplexed high throughput assay. Overall, our work, and the multiplex assay it features, should support the continued development of TdT-based DNA recorders, in vitro applications of TdT, and further study of the biology of TdT.
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4
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Fu X, Chen Z, Ma W, Zhang H, Mo W, Li J, Yang M. Entropy-driven dynamic self-assembled DNA dendrimers for colorimetric detection of African swine fever virus. Anal Bioanal Chem 2023; 415:1675-1685. [PMID: 36715708 DOI: 10.1007/s00216-023-04562-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 01/31/2023]
Abstract
Herein, we subtly engineered an amplified colorimetric biosensor for the cyclic detection of African swine fever virus DNA (ASFV-DNA), which associated the branched catalytic hairpin assembly (bCHA) amplification with G-quadruplex DNAzyme activity through triplex DNA formation. Firstly, a Y-shaped hairpin trimer was constructed for the dynamic self-assembly of DNA dendrimers. Then, in the presence of ASFV-DNA, the signal strand CP was opened, exposing the toehold regions, which would trigger the CHA cascade reaction between hairpin trimers. In the CHA cascade reaction, H1, H2, and H3 opened and bound in sequence, eventually forming the structure of DNA dendrimers. Subsequently, the obtained bCHA product was specifically recognized by the GGG repeat sequences of L1 and L2, then amplified by the synergistic effect of triplex DNA and the formation of asymmetric split G-quadruplex. Benefiting from the amplification properties of bCHA and the high peroxidase-like catalytic activity of asymmetrically split G-quadruplex DNAzymes, it could achieve effective colorimetric signal output in the presence of ASFV-DNA by means of triplex DNA formation. Under the optimal experimental conditions, this biosensor exhibited excellent sensitivity with a detection limit of 1.8 pM. Further, it was applied to the content detection of simulated samples of African swine fever, and the recoveries were 98.9 ~ 103.2%. This method has the advantages of simple operation, good selectivity, and high sensitivity, which is expected to be used for highly sensitive detection of actual samples of African swine fever virus.
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Affiliation(s)
- Xin Fu
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China.
| | - Zhoujie Chen
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China
| | - Wenjie Ma
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China
| | - He Zhang
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China.
| | - Wenhao Mo
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China
| | - Jinyan Li
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China
| | - Mei Yang
- State Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China
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5
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Wei Q, Huang H, Wang S, Liu F, Xu J, Luo Z. A Novel Fluorescent Aptamer Sensor with DNAzyme Signal Amplification for the Detection of CEA in Blood. SENSORS (BASEL, SWITZERLAND) 2023; 23:1317. [PMID: 36772357 PMCID: PMC9920513 DOI: 10.3390/s23031317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Carcinoembryonic antigen (CEA) is a tumor-specific biomarker; however, its low levels in the early stages of cancer make it difficult to detect. To address the need for analysis of ultra-low-level substances, we designed and synthesized a fluorescent aptamer sensor with DNAzyme signal amplification and used it for the detection of CEA in blood. In the presence of the target protein, the aptamer sequence in the recognition probe binds to the target protein and opens the hairpin structure, hybridizes with the primer and triggers a polymerization reaction in the presence of polymerase to generate double-stranded DNA with two restriction endonuclease Nb.BbvCl cleavage sites. At the same time, the target protein is displaced and continues to bind to another recognition probe, triggering a new round of polymerization reaction, forming a cyclic signal amplification triggered by the target. The experimental results show that the blood detection with CEA has a high sensitivity and a wide detection range. The detection range: 10 fg/mL~10 ng/mL, with a detection limit of 5.2 fg/mL. In addition, the sensor can be used for the analysis of complex biological samples such as blood.
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Affiliation(s)
- Qingmin Wei
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, China
| | - Huakui Huang
- Yulin Campus, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, China
| | - Shulong Wang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, China
| | - Fa Liu
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, China
| | - Jiayao Xu
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, China
| | - Zhihui Luo
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, China
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6
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Lian K, Chen G, Wang X, Zhang W, Hu X, Wang H, Li Y, Xi D, Wang Y. Fluorescent detection of brown spot of tobacco caused by Alternaria alternata based on lambda exonuclease-induced DNAzyme amplification. RSC Adv 2023; 13:1587-1593. [PMID: 36688064 PMCID: PMC9827279 DOI: 10.1039/d2ra05616j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/27/2022] [Indexed: 01/11/2023] Open
Abstract
A rapid, simple, and sensitive fluorescent detection method for brown spot of tobacco is established by lambda exonuclease-induced Mg2+-dependent DNAzyme amplification. It contains hybridization of the Alternaria alternata genome and HP1, digestion of the 5'-phosphorylated strand of the hybrid dsDNA by lambda exonuclease, acquisition of complete Mg2+-dependent DNAzyme, cleavage of the substrate modified with FAM and BHQ-1, and fluorescent detection. The proposed assay exhibits good sensitivity (10 pg L-1), selectivity and reproducibility. The method does not require pure DNA and expensive instruments, and can be performed within 2.5 hours. To the best of our knowledge, this is the first report of fluorescent detection of Alternaria alternata and its tobacco field samples. This method can be applied to the rapid and sensitive detection of Alternaria alternata in tobacco and its seedlings, and is particularly important for the green prevention and control of tobacco brown spot disease.
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Affiliation(s)
- Kai Lian
- College of Life Science, Linyi University Linyi 276005 China
| | - Guangyan Chen
- College of Life Science, Linyi University Linyi 276005 China
| | - Xiaoqiang Wang
- Plant Protection Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences Qingdao 266101 China
| | - Wenna Zhang
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University Linyi 276000 China
| | - Xihao Hu
- Shandong Tobacco Company Qingdao Branch Qingdao 266101 China
| | - Hui Wang
- Plant Protection Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences Qingdao 266101 China
| | - Yusen Li
- College of Life Science, Linyi University Linyi 276005 China
| | - Dongmei Xi
- College of Life Science, Linyi University Linyi 276005 China
| | - Ying Wang
- College of Life Science, Linyi University Linyi 276005 China
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7
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Construction of electrochemiluminescence biosensor via click chemistry and ARGET-ATRP for detecting tobacco mosaic virus RNA. Anal Biochem 2022; 655:114834. [DOI: 10.1016/j.ab.2022.114834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/21/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022]
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8
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Zhang Y, Li P, Hou M, Chen L, Wang J, Yang H, Feng W. An electrochemical biosensor based on ARGET ATRP with DSN-assisted target recycling for sensitive detection of tobacco mosaic virus RNA. Bioelectrochemistry 2022; 144:108037. [PMID: 34906819 DOI: 10.1016/j.bioelechem.2021.108037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 11/26/2022]
Abstract
Herein, an electrochemical biosensor for detecting tobacco mosaic virus (TMV) RNA is constructed by activator regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP) combined with duplex-specific nuclease (DSN)-assisted target recycling. First, the captured DNA (cDNA) is self-assembled on the electrode surface and hybridizes with the TMV RNA (tRNA) to form cDNA/tRNA hybrids. And then the initiator of ARGET ATRP (α-bromoisobutyric acid, BMP) is attached to the cDNA via an amide bond and later triggers ARGET ATRP. Many electroactive monomers (ferrocenylmethyl methacrylate, FMMA) are polymerized and a remarkable electrical signal response of ferrocene (Fc) is obtained. However, with the present of DSN, DSN cleaves the cDNA/tRNA hybrid and releases tRNA to hybridize with another cDNA, thereby causing significant shortening of the length of the cDNA. The number of polymer chains on the electrode surface is drastically reduced, which is followed by a noticeable reduction in the signal of Fc. The method shows high sensitivity, superior selectivity, excellent stability and good reproducibility under optimal conditions with the limit of detection (LOD) of 2.9 fM. Furthermore, the biosensor showed satisfactory applicability in detecting tRNA in real samples, thereby demonstrating the potential of the method for practical TMV RNA detection.
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Affiliation(s)
- Yaping Zhang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Peipei Li
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Mengyuan Hou
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Luyao Chen
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Jianfeng Wang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Weisheng Feng
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
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9
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Anantharaj A, Das SJ, Sharanabasava P, Lodha R, Kabra SK, Sharma TK, Medigeshi GR. Visual Detection of SARS-CoV-2 RNA by Conventional PCR-Induced Generation of DNAzyme Sensor. Front Mol Biosci 2020; 7:586254. [PMID: 33425988 PMCID: PMC7793695 DOI: 10.3389/fmolb.2020.586254] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 12/02/2020] [Indexed: 12/23/2022] Open
Abstract
The gold standard for the diagnosis of SARS-CoV-2, the causative agent of COVID-19, is real-time polymerase chain reaction (PCR), which is labor-intensive, expensive, and not widely available in resource-poor settings. Therefore, it is imperative to develop novel, accurate, affordable, and easily accessible assays/sensors to diagnose and isolate COVID-19 cases. To address this unmet need, we utilized the catalytic potential of peroxidase-like DNAzyme and developed a simple visual detection assay for SARS-CoV-2 RNA using a conventional thermal cycler by the PCR-induced generation of DNAzyme sensor. The performance of RT-PCR DNAzyme-based sensor was comparable to that of real-time PCR. The pilot scale validation of RT-PCR DNAzyme-based sensor has shown ~100% sensitivity and specificity in clinical specimens (nasopharyngeal swab, n = 34), with a good correlation (Spearman r = 0.799) with the Ct-value of fluorescence probe-based real-time PCR. These findings clearly indicate the potential of this inexpensive, sensitive, and specific molecular diagnostic test to extend our testing capabilities for the detection of SARS-CoV-2 to curtail COVID-19 transmission.
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Affiliation(s)
- Anbalagan Anantharaj
- National Capital Region - Biotech Science Cluster, Translational Health Science and Technology Institute (THSTI), Faridabad, India
| | - Soon Jyoti Das
- National Capital Region - Biotech Science Cluster, Translational Health Science and Technology Institute (THSTI), Faridabad, India
| | - Patil Sharanabasava
- National Capital Region - Biotech Science Cluster, Translational Health Science and Technology Institute (THSTI), Faridabad, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Sushil K. Kabra
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Tarun Kumar Sharma
- National Capital Region - Biotech Science Cluster, Translational Health Science and Technology Institute (THSTI), Faridabad, India
| | - Guruprasad R. Medigeshi
- National Capital Region - Biotech Science Cluster, Translational Health Science and Technology Institute (THSTI), Faridabad, India
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10
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Wang Y, Li B, Li X, Xi D. Fluorescent detection of zucchini yellow mosaic virus based on recombinase polymerase amplification and enzyme-assisted signal amplification. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Wang Y, Wang X, Gailing O, Xi D. Visual detection of Fusarium proliferatum based on dual-cycle signal amplification and T5 exonuclease. RSC Adv 2020; 10:35131-35135. [PMID: 35515665 PMCID: PMC9056896 DOI: 10.1039/d0ra06559e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/13/2020] [Indexed: 11/21/2022] Open
Abstract
A novel visual detection of Fusarium proliferatum species through recombinase polymerase amplification and rolling circle amplification was established. Single-stranded circle DNA was produced based on one strand of RPA product, which used as a template for rolling circle amplification. Schematic illustration of RPA-RCA-assisted dual amplification for visual detection of F. proliferatum.![]()
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Affiliation(s)
- Ying Wang
- College of Life Science
- Linyi University
- Linyi 276005
- People's Republic of China
- Faculty of Forest Sciences and Forest Ecology
| | - Xiaoqiang Wang
- Plant Protection Research Center
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences
- Qingdao 266101
- People's Republic of China
| | - Oliver Gailing
- Faculty of Forest Sciences and Forest Ecology
- University of Göttingen
- Göttingen 37077
- Germany
| | - Dongmei Xi
- College of Life Science
- Linyi University
- Linyi 276005
- People's Republic of China
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12
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Wang Y, Li X, Xi D, Wang X. Visual detection of Fusarium proliferatum based on asymmetric recombinase polymerase amplification and hemin/G-quadruplex DNAzyme. RSC Adv 2019; 9:37144-37147. [PMID: 35542282 PMCID: PMC9075509 DOI: 10.1039/c9ra05709a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/29/2019] [Indexed: 11/28/2022] Open
Abstract
A one-step and instrument-free visual method was established based on asymmetric recombinase polymerase amplification coupled with hemin/G-quadruplex DNAzyme for the detection of Fusarium proliferatum. Asymmetric recombinase polymerase amplification and hemin/G-quadruplex DNAzyme-based visual detection of F. proliferatum is demonstrated.![]()
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Affiliation(s)
- Ying Wang
- College of Life Science
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
- School of Chemistry and Chemical Engineering
- Linyi University
- Linyi 276005
| | - Xiangdong Li
- Shandong Province Key Laboratory of Agricultural Microbiology
- College of Plant Protection
- Shandong Agricultural University
- Tai'an
- People's Republic of China
| | - Dongmei Xi
- College of Life Science
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
- School of Chemistry and Chemical Engineering
- Linyi University
- Linyi 276005
| | - Xiaoqiang Wang
- Plant Protection Research Center
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences
- Qingdao 266101
- People's Republic of China
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