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DNA, Single-Stranded: A single chain of deoxyribonucleotides that occurs in some bacteria and viruses. It usually exists as a covalently closed circle.
 JoVE Biology

Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution

1Department of Medicine, Weill Cornell Medical College, 2Institute for Computational Biomedicine, Weill Cornell Medical College, 3Department of Physiology and Biophysics, Weill Cornell Medical College, 4Department of Pathology, University of Michigan


JoVE 52246

 JoVE Biology

A Quantitative Assay to Study Protein:DNA Interactions, Discover Transcriptional Regulators of Gene Expression, and Identify Novel Anti-tumor Agents

1Greenebaum Cancer Center, University of Maryland School of Medicine, 2Program in Molecular Medicine, University of Maryland School of Medicine, 3Department of Biochemistry & Molecular Biology, University of Maryland School of Medicine, 4Department of Pharmacology & Experimental Therapeutics, University of Maryland School of Medicine, 5Department of Pathology and Biochemistry & Molecular Biology, University of Maryland School of Medicine


JoVE 50512

 JoVE Bioengineering

Nanomanipulation of Single RNA Molecules by Optical Tweezers

1Nanoscale Engineering Graduate Program, College of Nanoscale Science and Engineering, University at Albany, State University of New York, 2Nanoscale Science Undergraduate Program, College of Nanoscale Science and Engineering, University at Albany, State University of New York, 3Nanobioscience Constellation, College of Nanoscale Science and Engineering, University at Albany, State University of New York, 4The RNA Institute, University at Albany, State University of New York, 5Department of Biological Sciences, University at Albany, State University of New York


JoVE 51542

 JoVE Immunology and Infection

Generation of Two-color Antigen Microarrays for the Simultaneous Detection of IgG and IgM Autoantibodies

1Multi-Organ Transplant Program, University Health Network, 2Institute of Medical Science, University of Toronto, 3Divison of Neurosurgery, University Health Network, 4Division of Cardiac Surgery, University Health Network


JoVE 54543

 Science Education: Essentials of Environmental Microbiology

Detecting Environmental Microorganisms with the Polymerase Chain Reaction and Gel Electrophoresis

JoVE Science Education

Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - Arizona University
Demonstrating Author: Bradley Schmitz

Polymerase chain reaction (PCR) is a technique used to detect microorganisms that are present in soil, water, and atmospheric environments. By amplifying specific sections of DNA, PCR can facilitate the detection and identification of target microorganisms down to the species, strain, and serovar/pathovar level. The technique can also be utilized to characterize entire communities of microorganisms in samples. The culturing of microorganisms in the laboratory using specialized growth media is a long-established technique and remains in use for the detection of microorganisms in environmental samples. Many microbes in the natural environment, while alive, maintain low levels of metabolic activity and/or doubling times and are thus referred to as viable but non-culturable (VBNC) organisms. The use of culture-based techniques alone cannot detect these microbes and, therefore, does not provide a thorough assessment of microbial populations in samples. The use of PCR allows for the detection of culturable microbes, VBNC organisms, and those that are no longer alive or active, as the amplification of genetic sequences does not generally require the pre-enrichment of microorga

 JoVE Developmental Biology

Efficient Generation of hiPSC Neural Lineage Specific Knockin Reporters Using the CRISPR/Cas9 and Cas9 Double Nickase System

1Department of Neurosurgery, The University of Texas Health Science Center at Houston, 2Center for Stem Cell and Regenerative Medicine, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 3The Senator Lloyd & B. A. Bentsen Center for Stroke Research, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 4Summer Research Program, Office of Educational Programs, The University of Texas Health Science Center at Houston, 5Department of Anesthesiology, Shengjing Hospital, China Medical University, 6Department of Oncology, Renji Hospital, Shanghai Jiaotong University School of Medicine, 7Biology Department, University of West Georgia


JoVE 52539

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