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  1. New Optogenetic Tools for Cytoskeleton and Membrane Control

    Type
    Blog Post
    ...to a specific area at the plasma membrane (Figure 2). Just express the plasma membrane-localized iLID ...cells will be ready for the spotlight.    Figure 2: Opto-RhoGEFs to control Rho GTPase activity. A) Schematic...great way to stimulate and study these physical processes. Joachim Goedhart and colleagues in the Gadella...could be applied to study other actin-dependent processes in cells and tissues. And, this Opto-RhoGEF design...the protein of interest supports a variety of processes in different cell types. One great way to do this...
  2. Fluorescent Proteins 101: Fluorescent Protein Timers

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    Blog Post
    ...linear region to solve for total expression time. 2. Timer functionality with a single gene Although it...290.5496 (2000): 1585-1588. PubMed PMID: 11090358. 2. Tsuboi, Takashi, et al. "Age-dependent preferential...allowing them to optimize the compound production process. How have you used FP timers? Are you planning ...
  3. Getting to Know Expansion Microscopy

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    Blog Post
    ...your sample (i.e. cultured cells or tissues).  Step 2: attach anchors to your sample that will link biomolecules...quite so much. Created with biorender.com Steps 2-4 are not found in standard IHC/ICC protocols and ....)  Step 5: Image   Figure 1: The ExM process allows you to physically magnify a sample so you...
  4. Deciphering the Mysteries of Behavior with Viral Vectors

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    Blog Post
    ...of these neurons via the channel Channelrhodopsin 2 (ChR2) reduced glutamate transmission from the mPFC...deliver Cre-dependent expression of  Channelrhodopsin 2 (ChR2), a modified receptor protein that activates...tracking software. Locomotion is a highly complex process on the level of individual neurons and in terms...
  5. Antibodies 101: The Basics of Western Blotting

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    Blog Post
    ... a western, proteins are: (1) separated by size, (2) transferred to a membrane, and  (3) detected using...expensive system-specific sandwiches.   Figure 2: The western blot dry apparatus includes a stack of...gels to nitrocellulose sheets: procedure and some applications. Proceedings of the National Academy of Sciences...  Figure 1: Overview of the Western blot process. The sample, a mixture of protein is separated ...antibodies, and finally visualized.   This process allows you to detect a single, specific protein...conduct the electric current. The wet transfer process is very effective in transferring a broad range...common readout for subcellular fractionations, a procedure that isolates proteins from different cellular...
  6. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

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    Blog Post
    ...bringing in environmental contaminants.  Figure 2: An Addgenie works in the tissue culture hood while...doi.org/10.1290/1071-2690(2002)038<0086:caeomi>2.0.co;2 Uphoff CC, Drexler HG (2011) Detecting Mycoplasma ... enter the culture medium during subculturing processes or from the air if the cell line remains exposed... infecting mycoplasma. The primers used in the process are either species/gene-specific or universal. .... Some amount of expertise is required in this process because result interpretation might be difficult...by training eligible staff for the cell culture process and hence eliminate one of the causes of contamination...filtration. There is no 100% assurance that this process can avoid contamination but it’s a very good practice...
  7. Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility

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    Blog Post
    ...Almo, Institute for Protein Innovation  1:18:45 - 2:01:18 (end) - Panel Alex Tucker (Ginkgo Bioworks)...their curation of citable, linkable figures. Cause #2: Hidden “negative” data We all want to be able to ...doing an experiment wrong. However, even simple procedures like pouring a plate or running a gel have intricacies... retain searchable, thorough notes on how lab procedures were actually performed, potentially curtailing... sense on many different levels - it’s hard to process large amounts of information and, from a SciComm...how and why papers change throughout the review process. This will hopefully push reviewers towards more...experimental design as part of the publication process (Nosek et al 2018). In this ideal situation, a ...
  8. Lentiviral Guide

    Type
    Guide
    ...selection. Desfarges S, Ciuffi A. Viruses. 2010. Jan;2(1):111-30. PubMed . Altering the tropism of lentiviral...Nerhbass U, Montagnier L, Charneau P. Cell. 2000. 101(2): 173-185. PubMed . Woodchuck Hepatitis Virus Posttranscriptional... CMV or RSV Return to Top Viral Production The process of producing infectious transgenic lentivirus is...sites onto the insert of interest using PCR. The process of subcloning consists of digesting the insert ...definition, at the beginning of R, is capped, and proceeds through U5 and the rest of the provirus. Third...
  9. Fluorescent Proteins 101: When GFP lets you down

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    Blog Post
    ...phosphoinositides (Varnai and Balla, 2008) (Figure 2). RNA production can be detected by using a MS2 coat... 296.5569 (2002): 913-916. PubMed PMID: 11988576. 2. Tsien, Roger Y. "The green fluorescent protein." ...for biological spectroscopy and microscopy." Proceedings of the National Academy of Sciences 114.23 (2017... real-time multicolor luminescence imaging." Proceedings of the National Academy of Sciences (2015): 201418468...
  10. Inntags: Innovative Protein Epitope Tagging

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    Blog Post
    ...tagging." Nature methods (2015). PubMed PMID:26322837. 2. Stadler, Charlotte, et al. "Immunofluorescence and...the attributes of the native protein. Since this process takes a lot of time and energy, Martí Aldea and...
  11. Quick, Versatile Plant Transgenesis with GreenGate Plasmids

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    Blog Post
    ...Transgenesis." PLoS ONE. 8(12): e83043 (20 December 2013). 2. Carola Engler et al. "A One Pot, One Step, Precision...contributing more modules into the public domain in the process. “We had several motivations for making GreenGate...
  12. 6 Steps to Submitting a Resume That Gets Seen

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    Blog Post
    ...having trouble preparing your most excellent resume. 2) Follow job boards and check them regularly Use your...existing relationships as part of the job application process can dramatically increase the chances of being ...document. 6) Use your network! During the entire process, use whatever means you can to get your resume ...
  13. How to Deposit Your Plasmids with Addgene

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    Blog Post
    ...two options to begin your plasmid deposit. Figure 2: Choose to submit plasmid(s) online or by using a ...format. Figure 6: Add sequence, maps, and files. Step 2: Gene and Insert *Note: This page will not appear ...starting the process. After you have logged in to your account, you can begin the deposit process by clicking... as a step-by-step guide to the online deposit process. To deposit plasmids online, you will need to create...the Deposit menu: Figure 1: Begin the deposit process by clicking "Submit Online Deposit" or "Download...published in a peer-reviewed journal. To start this process, simply enter your preprint title or a general ...Hold for publication: we will initiate our MTA process and perform standard quality control but will not...
  14. Generating Mouse Models Using CRISPR/Cas9

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    Blog Post
    ... 1: Genetically Engineered Mice and Part 2: Breeding and Crossing Mice. My first CRISPR mouse experiment...is less predictable. In our best case, we saw that 2 out of 3 mice carried a 5 kb insertion in the ROSA...not always guaranteed. To learn more about this process check out our Mouse Modeling blog posts: Part 1...have germline competent ESC lines. Second, the process is much quicker. It takes 3 months to generate ...
  15. Seeing Red: Simple GFP Photoconversion

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    Blog Post
    ...photoconvertible fluorescent protein. Nat Methods. 2009 Feb 6(2):131-3.  PubMed. Find plasmids from this publication... be expensive and time-consuming to repeat the process with these new photoconvertible proteins. With ...state after excitation at 561 nm. This imaging process worked well with the common GFP variants EGFP, ...
  16. Tag Your Favorite Yeast Genes with Ease

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    Blog Post
    ...Pringle’s former lab at UNC Chapel Hill. Bähler et al.(2) describe a modular collection of plasmids for a wide...Homologous recombination is the process by which nearly all domains of life repair genomic damage, specifically...Researchers have long taken advantage of this natural process to integrate protein tags into the genomes of S...
  17. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

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    Blog Post
    ... ligands can elicit varying degrees of β-arrestin-2 recruitment to receptors, indicating their agonistic...fluorescent labels. In Nature Methods (Vol. 19, Issue 2, pp. 149–158). Nature Research. https://doi.org/10.1038...Allikalt et al., 2020) Impact of labeling process: The process of dye labeling, such as conjugation with...beneficial when studying dynamic processes like mitochondrial dynamics. This process, involving mitochondrial ...specimens has offered illumination on biochemical processes that are crucial in the world of biological research...result in cellular toxicity due to the permeation process. Advanced technologies in fluorescent dyes/ligands...
  18. Viral Genome Sequencing - A One Stop Shop for AAV Identity and Serotype Confirmation

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    Blog Post
    ...containing complementary polynucleotide chains. J Virol 9(2): 394-396. Lecomte E, Tournaire B, Cogné B, Dupont...   While the VGS process isn’t new to Addgene, we are excited to share the procedures and Python scripts... vector (AAV) samples and created a simplified process, termed viral genome sequencing (VGS), to confirm...We recently published a description of the VGS process and use cases in Human Gene Therapy. Existing methods...substrates for tagmentation-based library preparation procedures. This finding eliminates the double-stranding...
Showing: 261 - 280 of 439 results