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Showing: 121 - 160 of 312 results
  1. Antibiotic Resistance: An Old Solution but a New Problem

    Type
    Blog Post
    Published
    Nov. 10, 2016, 3:30 p.m.
    ...transfer’. Resistance can also arise from random mutations in the genetic sequence that happen to be beneficial... if some didn’t develop, either through random mutation or horizontal gene transfer, means to defend themselves...effective drug targets (ones that are less likely to mutate or change in order for the bacterium to survive...
  2. How to Design Your gRNA for CRISPR Genome Editing

    Type
    Blog Post
    Published
    Sept. 24, 2020, 1:15 p.m.
    ...fluorescent tag or the introduction of a specific mutation, one generally relies on homology directed repair...experimental conditions used, led to no detectable mutations (Veres et al., 2014). When working with single-cell...Musunuru K (2014) Low Incidence of Off-Target Mutations in Individual CRISPR-Cas9 and TALEN Targeted Human...
  3. When Fidelity Matters: A frank discussion about ligase fidelity

    Type
    Blog Post
    Published
    March 6, 2018, 1:49 p.m.
    ...Electrochemiluminescent assay for detection of extremely rare mutations based on ligase reaction and bead enrichment."...direct identification of allelic composition of mutated DNA in a mixed population of excess wild‐type DNA...probe for the detection of low-abundance point mutations." Analytical chemistry 86.1 (2013): 900-906. PubMed...
  4. Cancer and the Immune System: Deciphering the Relationship

    Type
    Blog Post
    Published
    March 14, 2017, 2:30 p.m.
    ...vasculature to feed themselves, use the blood stream to commute to and invade multiple organs, and most importantly..., tumor penetration, inadequate concentration, mutation of cell surface targets by tumor cells, are a ...the most important: How will cancers evolve and mutate based on the immunotherapeutics we use on them?...
  5. CRISPR 101: Cytosine and Adenine Base Editors

    Type
    Blog Post
    Published
    Feb. 13, 2025, 2:15 p.m.
    ...being able to specify and correct single-base mutations without introducing DSBs at all. Base editing ...properties of the individual Cas9. They also mutagenized the cytidine deaminase portion of the base editor...are smaller and less likely to cause off-target mutations than those derived from naturally occurring cytidine...
  6. Your Top Requested Plasmid in 2016!

    Type
    Blog Post
    Published
    Jan. 11, 2017, 8:47 p.m.
    ... V2.0 from it's predecessor, which had a point mutation in the puromycin resistance gene that made it ...less effective in certain cell lines. This point mutation has been corrected in V2.0. pSpCas9(BB)-2A-Puro...
  7. What's the Best Way to Elute and Store Your Plasmid DNA?

    Type
    Blog Post
    Published
    June 4, 2020, 1:22 p.m.
    ...repaired by base excision repair, but can lead to mutations in single stranded DNA undergoing replication....endA negative, meaning the gene has been removed/mutated to neutralize the nuclease activity. For strains...
  8. Running for Rare Disease, Running for FOP, Running for AJ

    Type
    Blog Post
    Published
    Sept. 15, 2016, 2:30 p.m.
    ...disease typically caused by a single R206H point mutation on the receptor ACVR1. ACVR1 triggers appropriate...regeneration in healthy patients. However, the R206H mutation makes ACVR1 responsive to members of the ubiquitous...
  9. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    Published
    March 13, 2014, 4:08 p.m.
    ...the introduction of a mutation into the genome, how can cells with that mutation be selected/screened?...
  10. Plasmids 101: Antibiotic Resistance Genes

    Type
    Blog Post
    Published
    Jan. 30, 2014, 3:29 p.m.
    ...inactivates the gene and acts as a marker for the mutation. When designing these types of experiments it ...not to use the same resistance cassette for the mutation and for plasmid selection. Additionally, scientists...
  11. Plasmids 101: TOPO Cloning

    Type
    Blog Post
    Published
    Oct. 27, 2016, 2:30 p.m.
    ... Blog Perform Site Directed Mutagenesis by PCR Use REPLACR Mutatgenesis to Easily Generate Insertion ...
  12. Even more elegant: Single injection CRISPR/Cas9 in C. elegans

    Type
    Blog Post
    Published
    July 7, 2015, 3:36 p.m.
    ...Other labs have used PCR-based screening to detect mutants, but this method limits screening to a few hundred...other genome modifications, including targeted mutations. SEC-based systems may prove effective in other...
  13. Another Pathway into Cells: iTOP

    Type
    Blog Post
    Published
    June 23, 2015, 8:37 p.m.
    ...toxin, indicating a 70% frequency of biallelic mutations. Importantly, hESCs retained their stemness, indicating... remove the risk of viral integration causing mutations and gene expression changes elsewhere in the genome...
  14. K. phaffii: Rising to the Occasion

    Type
    Blog Post
    Published
    April 4, 2023, 1 p.m.
    ...the preferred pathway for generating knock-in mutations, and NHEJ is an error-prone pathway frequently...frequently introducing frameshift knockout mutations. Thus, if genetic manipulation one way or the other (knock-in...
  15. Multiplexed Overexpression of Regulatory Factors (MORF) collection

    Type
    Blog Post
    Published
    March 30, 2023, 1:15 p.m.
    ...example, very few diseases manifest as a single mutation or expression dysregulation event. Diseases are...multiple layers of dysregulation from either genetic mutation and/or TF dysregulation. A targeted TF screening...
  16. Fluorescent Proteins 101: Luciferase

    Type
    Blog Post
    Published
    June 24, 2014, 3:59 p.m.
    ...enhancers and untranslated regions, or the effect of mutations of these regulatory elements on gene expression...expression. The regulatory element (wild-type or mutant) is cloned upstream of the luciferase gene in the plasmid...
  17. Plasmids 101: Screening Strategies Used in Plasmid Cloning

    Type
    Blog Post
    Published
    Sept. 15, 2020, 1:15 p.m.
    ...non-functional 𝛽-galactosidase. Complementing this mutation by expressing this deleted portion, for example...custom primers are especially helpful in verifying mutations that wouldn't be reached by sequencing from either...
  18. Hot Plasmids - May 2022

    Type
    Blog Post
    Published
    May 26, 2022, 1:15 p.m.
    ...long sequences with reduced risks of unwanted mutations in mammalian cells. Long sequences traditionally...traditionally have higher risks of off-target mutations. These plasmids contain catalytically inactive dCas9 and...
  19. Viral Vectors 101: An Introduction to AAV

    Type
    Blog Post
    Published
    May 30, 2023, 1:15 p.m.
    ...vector with half the size of the ssAAV genome has a mutation in the terminal resolution site (TRS) to form ...genome with wild-type ITRs at the both ends and mutated ITR at the center of symmetry. After uncoating ...
  20. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

    Type
    Blog Post
    Published
    Dec. 8, 2016, 3:30 p.m.
    ...gene. One such strain is DB3.1, which contains a mutant version of DNA gyrase (gyrA462) that is resistant... al. “F plasmid CcdB killer protein: ccdB gene mutants coding for non-cytotoxic proteins which retain ...
  21. Rabies and Neuronal Tracing

    Type
    Blog Post
    Published
    May 29, 2018, 1:51 p.m.
    ...with a deletion-mutant rabies virus. Retrograde neuronal tracing with a deletion-mutant rabies virus. Pubmed...
  22. Design Tips for Prime Editing

    Type
    Blog Post
    Published
    Jan. 23, 2025, 2:15 p.m.
    ...with BioRender.com. Add silent mutations near point mutations to create 3-base (or longer) tracts...
  23. Progress Towards a PAM-Free CRISPR

    Type
    Blog Post
    Published
    March 7, 2024, 2:39 p.m.
    ... if you want to knock out a gene, a frameshift mutation introduced anywhere within the early coding region... hand, if you are trying to knock-in a patient mutation or need to make a precise amino acid change, there...
  24. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

    Type
    Blog Post
    Published
    April 6, 2021, 12:30 p.m.
    ...genes with many modifications. We look for point mutations, truncations, and insertions that could compromise...compromise function. When we do find mutations, we check to see if they affect the translated amino acid. ...
  25. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...additional SapTrap plasmids used for introducing point mutations that was published in a microPublication (Schwartz... E. M. "SapTrap vectors for introducing point mutations with unc- 119 + selection." MicroPublication 1...
  26. CRISPR in the Clinic

    Type
    Blog Post
    Published
    Nov. 2, 2023, 1:15 p.m.
    ...co-injection of Cas9 and a single-guide RNA targeting the mutant allele. When all was said and done, the researchers...targeted to precisely edit with the goal of ‘fixing’ mutations or introducing a desired edit, but this particular...
  27. Fluorescent Proteins 101: Introduction to FRET

    Type
    Blog Post
    Published
    June 27, 2017, 1:03 p.m.
    ...orientation limiting FRET efficiency, circular permutation (Baird et al., 1999) of the fluorescent protein...References 1. Baird, Geoffrey S., et al. "Circular permutation and receptor insertion within green fluorescent...
  28. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...indicated in the “Species Other” column. Relevant Mutations Indicate the amino acid change as well as any...functional consequences of that change. For example, “Mutated aspartate 123 to Lysine (D123K), lowers biosensor...
  29. 7 Simple Strategies to Resolve Conflicts with Difficult Supervisors

    Type
    Blog Post
    Published
    Jan. 21, 2015, 1:30 p.m.
    ...your supervisor’s viewpoint and brainstorm about mutually beneficial solutions Your supervisor might not... his or her viewpoint, and discuss options for mutually beneficial solutions. If you package your challenges...
  30. Chromoproteins: Colorful Proteins For Molecular Biology Experiments

    Type
    Blog Post
    Published
    Feb. 4, 2020, 2:15 p.m.
    ...promoter. The resolution step leads to the desired mutation and excision of the vector backbone. To do this...Characterization of a Blue Chromoprotein and Its Yellow Mutant from the Sea AnemoneCnidopus Japonicus. Journal...
  31. Plasmids 101: Optimizing Plasmid Yields

    Type
    Blog Post
    Published
    May 26, 2016, 2:30 p.m.
    ...due to its endA1 recA1 relA1 genotype, as these mutations improve plasmid stability and yield. If a plasmid...using older plates could increase plasmid loss or mutation. Let it incubate Increasing the incubation time...
Showing: 121 - 160 of 312 results