Tag: CAS13A

DataSheet1_AI-boosted CRISPR-Cas13a and total internal reflection fluorescence microscopy system for SARS-CoV-2 detection.docx

Integrating artificial intelligence with SARS-CoV-2 diagnostics can help in the timely execution of pandemic control and monitoring plans. To improve the efficiency of the diagnostic process, this study aims to classify fluorescent images via traditional machine learning and deep learning-based transfer learning. A previous study reported a CRISPR-Cas13a system combined…

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731 Type VI A Cas13a In Cas13a direct repeat region of crRNA is composed of 5 6

7.3.1Type VI-A (Cas13a)In Cas13a, direct repeat region of crRNA is composed of 5–6 bp stem using Watsonand Crick base pairing with an unpaired 2 nt bulge (AA or AC) present at 30end ofstem, while loop region of stem contains 7–9 nt depending upon homologs ofCas13a. In addition, an 8–12 nt…

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Engineered LwaCas13a with enhanced collateral activity for nucleic acid detection

doi: 10.1038/s41589-022-01135-y. Online ahead of print. Jie Yang #  1 , Yang Song #  2   3 , Xiangyu Deng  4 , Jeffrey A Vanegas  1 , Zheng You  1 , Yuxuan Zhang  2   3 , Zhengyan Weng  2   3 , Lori Avery  5 , Kevin D Dieckhaus  6 , Advaith Peddi  4 , Yang Gao  7 , Yi Zhang  8…

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Frontiers | A Mutated Nme1Cas9 Is a Functional Alternative RNase to Both LwaCas13a and RfxCas13d in the Yeast S. cerevisiae

Introduction The clustered regularly interspaced short palindromic repeats (CRISPR)–CRISPR-associated (Cas) protein systems naturally exist in prokaryotes. They are RNA-mediated defense mechanisms to protect bacteria and archaea from invading nucleic acids (Barrangou et al., 2007). CRISPR–Cas systems are classified into two classes (1 and 2). Class 2 CRISPR–Cas require a single…

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Specific High-Sensitivity Enzymatic Molecular Detection System Termed RPA-Based CRISPR-Cas13a for Duck Tembusu Virus Diagnostics

journal contribution posted on 19.05.2022, 07:04 by Dalin He, Gang Liu, Jing Yang, Xiaoning Jiang, Hongzhi Wang, Yaru Fan, Shangyu Gong, Feng Wei, Youxiang Diao, Yi Tang In China, drastic losses in the economy have been caused by the Tembusu virus (TMUV), the causative agent of the egg-drop syndrome, to…

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A Highly Sensitive and Specific Detection Method for Mycobacterium tuberculosis Fluoroquinolone Resistance Mutations Utilizing the CRISPR-Cas13a System

Objectives CRISPR-Cas13a system-based nucleic acid detection methods are reported to have rapid and sensitive DNA detection. However, the screening strategy for crRNAs that enables CRISPR-Cas13a single-base resolution DNA detection of human pathogens remains unclear. Methods A combined rational design and target mutation-anchoring CRISPR RNA (crRNA) screening strategy was proposed. Results…

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Biogenesis, biology and characterization of circular RNAs

Biogenesis, biology and characterization of circular RNAs Kristensen LS et al. The biogenesis, biology and characterization of circular RNAs. Nat Rev Genet. (2019) Summary text Biogenesis and properties of circRNAs Biogenesis of cirRNA Characteristics of circRNAs Discover and analyze circRNAs circRNA genome-wide analysis CircRNA site-specific analysis circRNA visualization Biological functions…

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Full Text Journal Article: Exploiting the orthogonal CRISPR-Cas12a/Cas13a trans-cleavage for dual-gene virus detection using a handheld device.

PDF.MPro – Full Text Journal Article: Exploiting the orthogonal CRISPR-Cas12a/Cas13a trans-cleavage for dual-gene virus detection using a handheld device. Home / Search / Abstract 34653714 (Page 1) Advertisement Find full text journal articles PMID: 34653714 (view PubMed database entry)DOI: 10.1016/j.bios.2021.113701 (read at publisher’s website ) Tian Tian, Zhiqiang Qiu, Yongzhong…

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Crispr/Cas13a Induced Exponential Amplification for Highly Sensitive and Specific Detection of Circular Rna by Pengfei Song, Pengbo Zhang, Ke Qin, Fengxia Su, Kejian Gao, Xin Liu, Zhengping Li :: SSRN

19 Pages Posted: 23 Mar 2022 See all articles by Pengfei Song University of Science and Technology Beijing University of Science and Technology Beijing University of Science and Technology Beijing University of Science and Technology Beijing University of Science and Technology…

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CASCADE: Naked eye-detection of SARS-CoV-2 using Cas13a and gold nanoparticles

This article was originally published here Anal Chim Acta. 2022 May 1;1205:339749. doi: 10.1016/j.aca.2022.339749. Epub 2022 Mar 22. ABSTRACT The COVID-19 pandemic has brought to light the need for fast and sensitive detection methods to prevent the spread of pathogens. The scientific community is making a great effort to design…

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Using CRISPR/Cas to develop biosafety materials

The diagnosis and treatment of viral infections, especially those that cause large-scale outbreaks, is urgently needed, as the lack of these measures allows epidemics to progress. A new Biosafety and Health study discusses the use of the highly efficient clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated proteins (Cas) technology to…

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A one-pot CRISPR/Cas13a-based contamination-free biosensor for low-cost and rapid nucleic acid diagnostics

Available online 13 January 2022, 113994 doi.org/10.1016/j.bios.2022.113994Get rights and content Highlights • A one-pot CRISPR/Cas13a-based visual biosensor for the rapid and low-cost nucleic acid detection is proposed. • With a newly developed tube-in-tube vessel used in the biosensor, aerosol cross contamination could be completely avoided. • The sensor can not…

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