scispace - formally typeset
Search or ask a question

What is nested pcr? 


Best insight from top research papers

Nested PCR is a technique used to enhance the sensitivity and specificity of PCR amplification. It involves two rounds of amplification using different sets of primers. In the first round, a target region is amplified, and the product is then used as a template for the second round of PCR, which is primed by internal oligonucleotides. This method allows for a higher number of cycles, increasing sensitivity, and improved specificity by binding two sets of primers to the same target template. Nested PCR is particularly useful when amplifying low-abundance targets or differentiating between closely related sequences. It has applications in various fields, such as genetic engineering for antibody preparation, high-throughput sequencing library preparation, and detecting specific viruses like atypical porcine pestivirus.

Answers from top 5 papers

More filters
Papers (5)Insight
Nested PCR is a technique utilizing multiple rounds of PCR with two sets of primers to enhance sensitivity and specificity in detecting atypical porcine pestivirus virus, as described in the paper.
Journal ArticleDOI
Michael R. Green, Joseph Sambrook 
01 Feb 2019-CSH Protocols
48 Citations
Nested PCR involves two sequential amplification reactions using different primer pairs. The product of the first reaction serves as the template for the second, enhancing sensitivity and specificity in amplification.
Nested PCR is a technique using two sets of primers in successive PCR reactions to enhance specificity by reducing nonspecific binding, aiding in detecting intestinal helminth infections with high sensitivity.
Nested PCR is a method involving two rounds of PCR amplification using specific primers to enhance specificity and avoid nonspecific products, as detailed in the provided research paper.
Nested PCR is a technique using specific primers in successive rounds to amplify target DNA. The paper introduces a nested PCR primer for horse antibodies, enhancing antibody preparation efficiency.

Related Questions

What is the role of PCR in detecting genetic variation and mutations?5 answersPCR plays a crucial role in detecting genetic variation and mutations by utilizing various techniques. The ARMS-PCR method is effective in identifying single nucleotide polymorphisms, offering advantages like high repeatability and low cost. PCR Single-Strand Conformation Polymorphism is widely used for mutation detection, showing sensitivity and ease of application in various fields, including clinical diagnostics and microbiology. Digital PCR (dPCR) has revolutionized mutation detection, especially in cancer genes, offering high precision and sensitivity in identifying tumor markers and pathogen mutations. Additionally, a method using wild-type oligonucleotides with PCR allows for the detection of genetic mutations with high specificity and efficiency. Overall, PCR-based methods are essential for identifying genetic variations, mutations, and resistance-conferring loci in various organisms and diseases.
What is the PCR?5 answersThe polymerase chain reaction (PCR) is a laboratory technique used for the amplification of a specific DNA fragment in a simple enzyme reaction. PCR has revolutionized molecular biology and medical research, allowing for the detection and quantification of DNA and RNA sequences. It enables visualization, cloning, sequencing, and further manipulation of DNA. PCR has been further developed to include variants such as real-time PCR and reverse transcription PCR (RT-PCR), which allows for the detection and measurement of RNA. The technique has numerous applications in genetics, molecular cloning, diagnosis of diseases, and forensic sciences. PCR can replace the construction of genomic or cDNA libraries for cloning and simplifies analytical and synthetic procedures that follow gene cloning. It has also revolutionized molecular genetic analysis by enabling DNA amplification from extremely small samples.
What is RT-PCR?3 answersRT-PCR is a technique used to quantify gene expression in samples. It is a sensitive method that allows for the amplification of specific sequences in small DNA fragments. This technique is widely used in molecular diagnostic laboratories for the diagnosis of specific pathogens, including SARS-CoV-2. RT-PCR can be used to detect the presence of viroids in plant tissue. It is a useful tool for detecting viroids, even at low levels. RT-PCR can also be used for the qualitative detection of SARS-CoV-2 RNA by NGS, allowing for the detection of different variants. Overall, RT-PCR is a versatile and widely used method for gene expression quantification, pathogen diagnosis, and viroid detection.
What applications does the PCR reaction have?5 answersPCR has extensive applications in molecular diagnostics, genomic research studies, bioscience, and point-of-care testing (POCT). It is used for rapid detection, precise genomic amplification, and nucleic acid detection. PCR is employed in medical diagnoses, environmental monitoring, food hygiene, safety, and the detection of foodborne pathogens and bacteria. It is also used for detecting target sequence mutations, discriminating single-nucleotide mutations in cancer cells, identifying CpG methylation status, and enriching DNA sequences of interest. PCR has been optimized for amplifying high guanine-cytosine (GC) content using bismuth-based materials. Additionally, advancements in PCR technology include high-throughput PCR systems and microfluidics-based PCR devices for point-of-care applications. A low-cost and easy-to-use PCR equipment has been developed, which proves its applicability and stability in gene detection research. Overall, PCR has a wide range of applications in various fields, including medical diagnosis, molecular biology, and biomedicine.
What is Nested PCR?3 answersNested PCR is a technique used to increase the sensitivity and specificity of PCR. It involves two sequential amplification reactions, each using a different pair of primers. The product of the first amplification reaction is used as the template for the second PCR, which is primed by oligonucleotides placed internal to the first primer pair. This allows for a higher number of cycles to be performed, increasing the sensitivity of the PCR. The improved specificity comes from the binding of two separate sets of primers to the same target template. Nested PCR is commonly used in situations where there is a need to amplify specific segments of long templates and requires knowledge of the target sequence.
What does PCR stand for in DNA replication?4 answers

See what other people are reading

How is bioavailability measured for subcutaneously injected monoclonal antibodies?
4 answers
Bioavailability of subcutaneously injected monoclonal antibodies (mAbs) can be measured using predictive models based on physicochemical and pharmacokinetic properties. These models utilize factors like human intravenous clearance (CL), isoelectric point (pI), and allometric scaling from non-human primate data to predict human subcutaneous bioavailability. Specifically, an inverse linear correlation exists between human subcutaneous bioavailability and factors like CL and pI, with mAbs showing a stronger correlation with CL and fusion proteins with pI. Multivariate regression models incorporating these parameters have shown high predictive accuracy, with up to 82% of predictions falling within 0.8-to 1.2-fold deviations from observed bioavailability. Additionally, an integrated physiologically based modeling framework has been developed to predict bioavailability based on antibody-specific characteristics and mechanisms governing subcutaneous absorption and disposition.
What is multiplex pcr?
5 answers
Multiplex PCR is a technique that allows the simultaneous amplification of multiple target DNA sequences in a single reaction. This method is highly versatile and can be applied to various DNA templates, including human DNA, plant DNA, clinical samples, and DNA for methylation analysis. It involves the use of multiple primer pairs in the same reaction mixture to detect different targets, such as human genetic markers and nuclear chromosomal genes of non-human species. Multiplex PCR can be optimized for specific applications, like the rapid detection of bacterial pathogens causing pneumonia, with the potential for expansion to analyze viral and fungal pathogens as well. Proper primer design, precise calibration of reaction conditions, and a robust detection system are crucial factors that influence the success and quality of multiplex PCR assays.
What are the potential implications of antibodies production and serological test performance in Chagas-affected people?
5 answers
The production of antibodies in Chagas-affected individuals can have significant implications on serological test performance. Studies have shown variations in test sensitivity and specificity based on the geographic origin of the infection. For instance, individuals from South America exhibited higher antibody reactivity and clinical sensitivity compared to those from Mexico. The latest-generation serology tests demonstrated improved diagnostic sensitivity without compromising specificity, especially in samples from South American donors. Geographic differences in T. cruzi parasite strains and human population genetics contribute to discrepancies in serological testing, highlighting the need for enhanced diagnostics to ensure accurate identification of Chagas cases. These findings underscore the importance of considering regional variations in antibody response when interpreting serological test results for Chagas disease.
How does F127 affect the immune system?
5 answers
F127, specifically Pluronic F127, has been extensively studied for its pharmaceutical applications. Pluronic smart hydrogel formulations, which include F127, have shown promise as injectable controlled drug carriers. These smart hydrogels undergo a sol-gel phase transition in the body, making them biocompatible and injectable before transforming into gel matrices at body temperature. The structural changes of F127 systems under controlled temperature after flow have been quantified, aiding in understanding their behavior during injection. Additionally, F127 has been utilized in solid dispersions to improve the dissolution rate of poorly water-soluble drugs like ketoconazole. Therefore, while F127 itself does not directly affect the immune system, its properties make it a valuable component in pharmaceutical formulations that can potentially impact immune responses indirectly.
What are the potential side effects and limitations of current cancer inhibition techniques?
5 answers
Current cancer inhibition techniques, such as immunotherapy by checkpoint inhibition, have shown efficacy in various malignancies but come with limitations and potential side effects. Side effects of anti-cancer drugs include nephrogenic diabetes insipidus, thrombosis, protein-loss enteritis, heart failure, lactic acidosis, and severe diarrhea. Immunotherapy with immune checkpoint inhibitors can lead to toxicities and resistance, restricting effective responses in some patients. Additionally, there is a need for better biomarkers to identify patients who will benefit from checkpoint inhibition treatment. Combining locoregional therapies with immune checkpoint inhibitors is a promising approach to enhance therapeutic capabilities in oncology, but further research is required to optimize treatment strategies and minimize unnecessary side effects.
How to automate specificity list for PCR prime?
5 answers
To automate the specificity list for PCR primers, various methods have been developed. One approach involves utilizing a program that automates the design of specific and reliable primers for multiplex PCR by acquiring data on selected genes and processing it to group candidate primers effectively. Another method includes a webserver that automatically designs tiled primer pairs for genomic loci, splitting DNA sequences into smaller regions and identifying candidate primers using Primer3 followed by cross-hybridization checks via BLAST. Additionally, an automatic primer design method for AS-PCR has been proposed, where inner primers are designed based on SNP loci sequences for efficient fluorescent AS-PCR, ensuring high specificity in gene typing analysis. Lastly, a study presents a completely automated pipeline using deep learning and evolutionary algorithms to design specific primer sets for different SARS-CoV-2 variants, demonstrating the rapid development of molecular tests for unique variant identification.
What is the impact of I380V mutation in dengue?
5 answers
The I380V mutation in dengue virus, specifically in the envelope protein domain III (EDIII), has been shown to impact virus infectivity and dissemination. This mutation, resulting in the presence of the RGD motif in the attenuated 17D strain of yellow fever virus, contributes to faster clearance in mammalian hosts. Additionally, studies on DENV2 mutants have revealed that mutations can affect replication rates and immune evasion mechanisms, with specific amino acid substitutions leading to accelerated replication and induction of high type-I interferon expression in infected cells. Furthermore, research on NS5 mutations in DENV serotype 3 has highlighted the significance of mutations in viral proteins, such as NS5, which plays a role in enzymatic activities and can lead to the generation of new serotypes.
How does E.coli bacteria contribute to urinary tract infections in children?
5 answers
E. coli bacteria play a significant role in urinary tract infections (UTIs) in children by being the most common pathogen associated with these infections. They exhibit high levels of antibiotic resistance and possess virulence factors that aid in adhesion and invasion, contributing to the severity of UTIs. Studies have shown that E. coli isolates from pediatric UTIs display resistance to multiple antibiotics, with varying levels of resistance to different drugs. Additionally, these bacteria harbor virulence genes such as fimH, papGII, and chuA, which enhance their pathogenicity. The presence of ESBLs and other resistance genes like bla-CTX-M further complicates treatment strategies, emphasizing the need for continuous monitoring and development of novel antimicrobials to combat pediatric UTIs caused by E. coli.
What are the future diagnostic studies for entamoeba coli infection?
5 answers
Future diagnostic studies for Entamoeba coli infection may involve molecular techniques like nested multiplex PCRand gene sequencing. These methods have shown promise in accurately identifying different Entamoeba species, including E. coli, in stool samples from symptomatic individuals. Additionally, incorporating serological assays for detecting antibodies specific to E. coli could enhance diagnostic accuracy. By combining these advanced molecular and immunological approaches, future studies can improve the detection and differentiation of Entamoeba species, aiding in the precise diagnosis of infections like E. coli. Moreover, ongoing research may focus on refining these diagnostic modalities to distinguish between active infections and past exposures, further enhancing the diagnostic capabilities for Entamoeba coli.
How is the research of conjugating an antibody to lipidnanoparticles to improve the delivery?
5 answers
The research on conjugating antibodies to lipid nanoparticles for improved delivery involves innovative strategies to enhance targeting efficiency and therapeutic efficacy. Various lipid-based nanoparticles, such as solid lipid nanoparticles (SLNs) and liposomes, have been functionalized with antibodies targeting overexpressed receptors on cancer cells, aiming to increase selectivity and reduce systemic toxicity. Studies have shown that antibody-conjugated nanoparticles exhibit higher tumor uptake compared to naked nanoparticles, emphasizing the importance of optimizing nanoparticle design for efficient tumor targeting. Techniques like 'click chemistry' have been developed for reproducible and versatile conjugation of antibodies to nanoparticles, showcasing promising results in cell-specific targeting. Overall, these advancements in antibody-nanoparticle conjugation hold significant potential for enhancing targeted drug delivery systems in cancer therapy.
What are the specific antibodies of vascular endothelial cells?
5 answers
The specific antibodies for vascular endothelial cells include those targeting PECAM1 and CDH5 extracellular matrix domains. Additionally, there are antibodies against VEGF, such as VEGF-specific human antibodies for diagnosis, disease classification, treatment, and prognostic evaluation. Furthermore, antibodies against pro-angiogenic forms of VEGF have been developed, capable of neutralizing these isoforms without affecting anti-angiogenic ones, with applications in therapy and diagnosis. Moreover, VEGF-B polypeptides and corresponding antibodies are utilized to promote mitosis and proliferation of vascular endothelial cells, stimulating angiogenesis and serving diagnostic purposes. Lastly, monoclonal antibodies targeting human VEGF or VEGF-related proteins are developed for therapeutic use in diseases characterized by excessive vascular endothelial cell proliferation, as well as for diagnostic purposes.