Primer Optimization
Primer Optimization - Related Videos
11:14
Primer-Free Aptamer Selection Using A Random DNA Library
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Cited by 20 •
2010
SELEX protocols comprise multiple rounds of selection, each of which require regeneration of bound ligands, which in turn require fixed primer sequences flanking the random library regions. These fixed primer sequences can interfere with the selection process (false positives and negatives). Here we present a primer-free protocol.
15:28
Primer Extension Capture: Targeted Sequence Retrieval from Heavily Degraded DNA Sources
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Cited by 41 •
2009
We present a method of targeted ancient DNA sequence retrieval, which we used to reconstruct the complete mitochondrial genomes of five Neandertal individuals. Comparison of these sequences with present day humans suggests that Neandertals had a long term low effective population size.
10:17
Laboratory Protocol for Genetic Gut Content Analyses of Aquatic Macroinvertebrates Using Group-specific rDNA Primers
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Cited by 7 •
2017
Most common gut content analyses of macroinvertebrates are visual. Requiring intense knowledge about morphological diversity of prey organisms, they miss soft bodied prey and, due to strong comminution of prey, are nearly impossible for some organisms, including amphipods. We provide detailed, novel genetic approaches for macroinvertebrate prey identification in the diet of amphipods.
06:01
Optimized PCR-based Detection of Mycoplasma
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Cited by 14 •
2011
The LookOut Mycoplasma PCR Detection Kit utilizes the polymerase chain reaction (PCR), which is established as the method of choice for highest sensitivity in the detection of Mycoplasma, Acholeplasma, and Ureaplasma contamination in cell cultures and other cell culture derived biologicals.
03:37
Optimal Foraging - Concepts
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2019
Optimal Foraging Organisms must acquire and use resources in their environment to survive. While food is one of the primary resources organisms must search for, individuals also need to seek habitats, shelter, and mates. This process of searching for resources is known as foraging, which involves a series of costs and benefits. More specifically, acquiring a resource provides the organism with a benefit, however, searching and capturing the resource requires expenditure of time and energy.
FAQs
Annealing temperature influences whether primers bind accurately to the intended nucleic acid sequence. An appropriate temperature promotes target-specific binding, whereas unsuitable conditions can reduce amplification efficiency or permit nonspecific products. During primer optimization, researchers evaluate amplification while adjusting this condition so the reaction produces the intended amplicon with improved specificity and reproducibility.
Primer concentration and magnesium ion levels are important reaction variables because they influence amplification performance and binding conditions. Researchers adjust these components to support efficient production of the intended target while limiting unwanted products and primer-dimer formation. Evaluating concentration changes helps identify conditions that provide stronger, more consistent amplification without sacrificing reaction specificity.
Effective optimization balances product yield with accurate target amplification. Increasing amplification performance alone is insufficient if the reaction also produces nonspecific products or primer-dimers. Researchers therefore assess both the amount of desired amplicon and the specificity of the reaction, using these outcomes to refine primer and condition choices for reliable downstream analysis.
A typical workflow begins with selected oligonucleotide primers and systematic testing of reaction conditions. Researchers vary factors such as annealing temperature, primer concentration, and magnesium ion levels, then evaluate the resulting amplicon for yield, size, and specificity. Comparing these outcomes identifies conditions that improve amplification efficiency and reproducibility for the intended assay.
Amplicon size provides an important check on whether amplification produced the intended target region. During optimization, researchers evaluate the size of the resulting product together with reaction specificity and yield. Consistent observation of the expected amplicon supports confidence that the selected primer and reaction conditions are suitable for reproducible PCR measurements or downstream molecular work.
Primer optimization supports several applications that require dependable nucleic acid amplification, including gene expression analysis, genotyping, cloning, and diagnostic testing. In conventional PCR and quantitative PCR, refining primer and reaction conditions can improve efficiency, specificity, and consistency. The optimized conditions help researchers obtain more reliable results when comparing samples or characterizing target sequences.