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We narrowed to 659 results for: MAL

Showing: 241 - 260 of 659 results

  1. Technologies Enabled by NanoLuc® Luciferase

    Type
    Blog Post
    Published
    Feb. 8, 2018, 12:17 p.m.
    ...perform whole-animal imaging, however NLuc’s emission peak is at 460 nm thus making it non-optimal for in vivo...absorbance of heme-containing proteins in whole animals, light at or above 600 nm wavelengths should be...issues as traditional luciferases emit at near optimal wavelengths (Fluc emits at 610 nm) and do not require...

  2. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ...typically 20 nts and the genomic locus must often be proximal to a PAM site for DNA cutting to occur. The RNA...experiment, at least one will likely be useful. Optimal gRNA selection With some CRISPR experiments, there...can reduce off-targets at a fundamental level. Optimal Cas selection Once you’ve selected a gRNA with ... off-target confounding your results should be minimal. For example, if your goal is to generate a knock-out...

  3. Antibodies 101: The Basics of Western Blotting

    Type
    Blog Post
    Published
    March 8, 2021, 2:41 p.m.
    ...its primary structure and separated by size with smaller molecules moving more quickly through the matrix...for SDS-PAGE, measure the protein content and normalize to ensure equivalent loading. Denature the samples...at the bottom of the gel and separate by size. Smaller proteins encounter less resistance in the acrylamide...separation, vary the acrylamide content of the gel. For small proteins, use a higher percentage of acrylamide ...

  4. PiggyBac-ing Through the Genome Editing Field

    Type
    Blog Post
    Published
    May 31, 2016, 3:30 p.m.
    ...successfully used for genetic manipulation in mammalian cells until 2005 [1]. Like other transposons, ...to efficiently perform genetic manipulations in animal models or cells lines, including stem cells, without...specific, and has not been shown to cause genomic abnormalities when expressed. This lack of off-target effects...27075976. 4.  X. Li, E. R. Burnight, A. L. Cooney, N. Malani, T. Brady, J. D. Sander, J. Staber, S. J. Wheelan...

  5. RNA Interference in Plant Biology: New Tools for an Old Favorite

    Type
    Blog Post
    Published
    Oct. 27, 2020, 1:15 p.m.
    ...trigger in the mammalian research community. Fortunately, many tools for shRNA in mammals are available...enzymes are involved in the biogenesis of different small RNAs (Figure 1). These siRNAs can exert their gene...posts Resources on Addgene.org Find tools for mammalian RNAi Browse all plasmids for RNAi Check out Addgene's...

  6. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

    Type
    Blog Post
    Published
    Oct. 8, 2020, 1:15 p.m.
    ...Mycoplasmas are considered to be one of the simplest and smallest bacteria. The absence of a rigid cell wall makes...microscope, the mycoplasma DNA appears in the form of small clusters, apart from the cellular DNA. Fluorescent... a very good practice for prevention. Prepare a small quantity of media stock that would be used for the...) Sensitive Assay for Mycoplasma Detection in Mammalian Cell Culture. Anal Chem 84:4227–4232 . https:/...

  7. Lambda Red: A Homologous Recombination-based Technique for Genetic Engineering

    Type
    Blog Post
    Published
    Dec. 15, 2016, 3:57 p.m.
    ...-selectable sequences, point mutations or other small base pair changes, and the addition of protein tags....   This setup can be also be used to modify chromosomal genes. After the initial editing event, the defective... system is best suited for editing bacterial chromosomal DNA because it is easy to remove the recombineering...Knockout/Knockin Plasmids to Disrupt Genes in Mammalian Cells CRISPR Methods for Bacterial Genome Engineering...

  8. Which Fluorescence Microscopy Technique is Best for Me?

    Type
    Blog Post
    Published
    Oct. 10, 2017, 1:57 p.m.
    ...technologist taking an x-ray, or a biologist imaging the smallest structures of life; the key to a great image is... Due to the wave nature of light, an infinitely small point of light will blur to a 200-300nm sized spot...light microscope is diffracted. Even an infinitely small point of light – think of a single GFP molecule ...nanometers. Thick dynamic samples Ex: 3D cell cultures, small model embryos >15 μm Thsee are some of the most ...

  9. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    Published
    April 25, 2017, 2:30 p.m.
    ...FP-protein fusions (FP-chimeras) is that they undergo normal protein turnover. FP-chimeras are continuously ... Threonine 203 to Histidine (T203H) (1). wtGFP normally contains a mixed population of neutral (protonated...30°C and this is not ideal for experiments in mammalian cells. Dendra2 is another monomeric PA-FP which...microscopy (PALM, also FPALM) (11). For PALM, a small area containing inactive PA-FPs is photoactivated...

  10. Typing CRISPR Systems

    Type
    Blog Post
    Published
    March 18, 2025, 1:15 p.m.
    ... only recently that researchers began building optimal plasmids to harness the power of Class 1 systems...effector and is able to target and edit RNA in mammalian cells. Type IV Type IV is the middle child (like.... Cas9 was the first to be adapted for use in mammalian systems, with the landmark publication in 2013... of DNA. The V-F variants, which are among the smallest Cas enzymes (400 to 700 amino acids), use a Cas14...

  11. New FLIS Plasmid (April Fools 2022)

    Type
    Blog Post
    Published
    April 1, 2022, 1:15 p.m.
    ...commonly known as fruit flies, have been an important animal model for research, particularly genetics research...reasonably close genetic homology to humans, and small size have allowed scientists to use it as a model...capturing the flies is nearly impossible, due to their small size and inconspicuous coloring.  FLIS plasmid Recently...

  12. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    Published
    Sept. 10, 2024, 1:15 p.m.
    ... Triton X-100; and methanol, we found that the optimal perm/fix solution depended on the specific antibody...caused by siRNA is also transient, and as such, the optimal knockdown of the protein target will depend on ...or ephemeral knockdown will be possible, and the small difference in protein expression makes confirmation...10.1038/nmeth.3995 Virk, H. S., Biddle, M. S., Smallwood, D. T., Weston, C. A., Castells, E., Bowman, V...

  13. Your Top Requested Plasmid in 2015!

    Type
    Blog Post
    Published
    Dec. 30, 2015, 3:30 p.m.
    ...deliver both Cas9 and your gRNA of interest to mammalian cells. It was designed to have increased lentiviral...available for a little over a year and a half, a small sampling of the research it has already been used...Some Common Ways to Deliver CRISPR Plasmids to Mammalian Cells Resources on the Addgene Website Visit...

  14. Let There Be LITE Plasmids

    Type
    Blog Post
    Published
    Nov. 21, 2013, 3:56 p.m.
    ...to cultured cells but extends to freely moving animals, as established for conventional optogenetic tools...unraveling the genetic and epigenetic players in normal biological processes and disease states. While ... Silvana Konermann et al. "Optical control of mammalian endogenous transcription and epigenetic states...

  15. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    Published
    March 13, 2014, 4:08 p.m.
    ...100 bp away, ideally less than 10 bp away. For small (<50 bp) changes, you should consider using ssDNA...less than 10 bp away if possible. For introducing small mutations (<50 bp) or a single-point mutation, the... in Drosophila. Elliot et al. (1998) suggests mammalian cells' tract lengths seem much shorter. Q10: What...Conversion Tracts from Double-Strand Break Repair in Mammalian Cells. Molecular and Cellular Biology, 18(1), ...

  16. From our Table to Yours: An Inside Look at Lunch at Addgene

    Type
    Blog Post
    Published
    Nov. 27, 2013, 2:54 p.m.
    ...favorite parts about working at Addgene. We’re a small non-profit, so we can only provide free food on ... employees, Addgene has naturally divided into smaller functional teams. Our Executive Director, Joanne... setting for people in different labs to chat informally about their challenges, successes, and expertise...

  17. Spurred by COVID-19, Addgene Bridges Plasmid Sharing Between Academia and Industry

    Type
    Blog Post
    Published
    June 23, 2020, 1:15 p.m.
    ...with children playing in the background became a normal occurrence as Addgene and our university partners...assessed how to more readily enable research. Often “normal” timelines that could be weeks to months were reduced...of SARS-CoV-2 proteins in bacteria, yeast, and mammalian cells. We teamed up with Ginkgo Bioworks to quickly...

  18. pSiM24: Simplifying Plant Genetic Engineering

    Type
    Blog Post
    Published
    Sept. 29, 2015, 2:30 p.m.
    ...stable gene expression applications in plants. This smaller, easily customizable vector functions in multiple...plant scientists want to transfer large genes, smaller binary vectors with a larger cloning capacity would...infection. At approximately 7 kb, pSiM24 is 2 and 6 kb smaller than commercially available pCAMBIA and pKYLX vectors...

  19. Celebrating Outstanding CRISPR/Cas9 Achievements at the Dr. Paul Janssen Award Dinner

    Type
    Blog Post
    Published
    Sept. 15, 2014, 6:05 p.m.
    ...club of people who have been in space is pretty small). Therefore, I was delighted to be invited to the...important part of their work? First, the discovery of a small, programmable DNA cutting enzyme. Second, since ...discussed how J&J is already modifying cell and animal genomes to test hypotheses of disease. They are...

  20. SpyLigase Irreversibly Locks Peptides Together for Efficient Cell Capture

    Type
    Blog Post
    Published
    Aug. 13, 2014, 3:49 p.m.
    ...in a genetically encoded way. SpyTag is nice and small, just 13 amino acids, but SpyCatcher is a protein...Schwarz-Linek at St. Andrews discovered the domain. It is small, highly stable and has this amazing chemistry locking... types, like stem cells or cells infected with malaria or other parasites. Addgene: Do you have any particular...
Showing: 241 - 260 of 659 results