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We narrowed to 868 results for: REN

Showing: 331 - 360 of 868 results
  1. Viral Vectors 101: Voltage Indicators

    Type
    Blog Post
    Published
    Jan. 30, 2024, 2:15 p.m.
    ...voltage indicators reviewed.   References and Resources   References Beck C, Zhang D, Gong Y. Enhanced... These types of sensors can have a variety of different components, but all contain a FRET pair, a genetic...specifically localize to the membrane, otherwise they aren’t all that useful. The cellular localization component...target – and this serotype can be selected to preferentially target your cell type of interest. Viral pseudotyping...powerful tool that swaps capsid proteins from different viruses to optimize them for targeting your cell...
  2. Addgene's Cancer Collection Pages Connect the Research Community

    Type
    Blog Post
    Published
    Sept. 6, 2016, 2:30 p.m.
    ...cellular pathways involved in the development of different cancers and identifying the roles of key proteins...approaching the Ras problem by exploiting the different mutant versions of Ras that are most prevalent...function of any of these genes through several different applications such as fluorescent protein fusion... study it (as seen in the screenshot below). Currently, the page includes interactive maps for the Ras...interests in education and scientific writing.     References 1. Martz, Colin A., et al. "Systematic identification... PMID: 24651010. 3. Ledford, Heidi. "The ras renaissance." Nature 520.7547 (2015): 278-280. PubMed PMID...
  3. An Introduction to Adenovirus

    Type
    Blog Post
    Published
    Oct. 3, 2023, 1:15 p.m.
    ...written by Addgenie Brian O'Neill.  References and resources References Bauzon, M., Castro, D., Karr, M.,...three (Servellita et al., 2023). Normally when children have acute viral hepatitis it is caused by the... the removal of certain adenoviral genes that apparently contribute to virulence (Tollefson et al., 1996...B. (2014). Adenoviruses: General Features. In Reference Module in Biomedical Sciences. Elsevier. https...Y. (2023). Adeno-associated virus type 2 in US children with acute severe hepatitis. Nature, 617(7961)...
  4. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    Published
    July 30, 2020, 1:15 p.m.
    ..., and he wisely makes no such attempt. He is transparent about his own biases--many of which will be shared...journal editorials, science social media, and conference workshops for years. That is, presumably, why... is the title of the chapter that examines the inherent brokenness of scientific publishing and research...off the section saying “science itself is never inherently bad or evil. However, it is easy to do sloppy...today--the day you are reading this review--in the current period of rapid flux, the chapter might still feel...scientist who enjoys learning a little bit about many different things (part of the reason Addgene has been such...
  5. Simplify Cloning with in vivo Assembly

    Type
    Blog Post
    Published
    Oct. 18, 2018, 12:37 p.m.
    ...bottleneck in the experimental process. The majority of current cloning techniques involve the assembly of a circular...single PCR, for example for subcloning genes from different templates. All PCRs are run as an 18 cycle, 25... - 1 μl DpnI is added to the PCR mix to remove parental DNA (37 °C for 15 mins). This enzyme specifically...the MRC Laboratory of Molecular Biology. He is currently investigating the molecular biology of synaptic... on Twitter @jakefwatson and @JGarciaNafria.  References 1. Jones, Douglas H., and Bruce H. Howard. "A...for plasmid cloning Find our molecular biology reference here Find molecular biology protocols here   ...
  6. INTEGRATE: Bacterial Genome Engineering Using CRISPR-Transposons

    Type
    Blog Post
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    Dec. 7, 2020, 2:53 p.m.
    ...Insertion of the mini-transposon can occur in two different orientations, but is strongly biased towards T-RL...integration efficiencies achieved with VchINT, at two different incubation temperatures. Data adapted from Vo ...and R ends - thus, scarless insertions are not currently possible, unlike methods involving homologous ...thanks to our guest blogger Leo Vo! Leo Vo is currently a PhD candidate in the Sternberg Lab at Columbia...Columbia University Medical Center. He currently studies CRISPR biology and CRISPR genome engineering technologies...Message or follow him on twitter @Vopinator.     References: Halpin-Healy TS, Klompe SE, Sternberg SH, Fernández...
  7. Better Dyeing Through Chemistry & Small Molecule Fluorophores

    Type
    Blog Post
    Published
    Sept. 8, 2016, 2:30 p.m.
    ...of green fluorescent protein (GFP) sparked a renaissance in biological imaging. Suddenly, cell biologists...dye (Figure 1a) and FAP systems (Figure 1e) are inherently fluorogenic and several others can be made fluorogenic... We continue to develop derivatives that have different spectral properties, exhibit high fluorogenicity...contributed by Luke D. Lavis. Luke D. Lavis is currently a Group Leader at the Janelia Research Campus,...modalities. Follow him on twitter @rhodamine110.   References 1. Liu, Zhe, Luke D. Lavis, and Eric Betzig. ...Imaging proteins inside cells with fluorescent tags." Trends in biotechnology 30.1 (2012): 8-16. PubMed PMID...
  8. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    Published
    May 8, 2018, 1 p.m.
    ...Synthego has developed a new tool called ICE (Inference of CRISPR Edits) to solve this problem. This tool...efficiency and determine the profiles of all the different types of edits that are present and their relative...compares hundreds of samples simultaneously.  The current version of ICE software can analyze indels that...Adjacent Motif (PAM) sequence for the nuclease used. Currently, ICE is configured for Cas9 fromStreptococcus ...average amount of signal that disagrees with the reference sequence derived from the control trace file. ...cut site, representing a high level of sequence difference. Traces The Traces tab shows the edited and ...
  9. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

    Type
    Blog Post
    Published
    July 7, 2020, 1:15 p.m.
    ...using FACS which could limit their use across different cell types and systems. To introduce flexibility... GO works by affecting protein translation of different reporter proteins. Protein translation requires...used GO to induce the translation of an array of different reporters including mScarlet-I, luciferase, antibiotic...proteins, antibiotic resistance, and luciferase. References Gaudelli NM, Komor AC, Rees HA, Packer MS, Badran.../10.1093/nar/gkaa124 Martin AS, Salamango DJ, Serebrenik AA, Shaban NM, Brown WL, Harris RS (2019) A panel...s41598-018-36739-9 St. Martin A, Salamango D, Serebrenik A, Shaban N, Brown WL, Donati F, Munagala U, ...
  10. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...forward for what the field can do.    References and Resources References  Özcan A, Krajeski R, Ioannidi E,...development of tools that exploit and expand our current knowledge. The Abudayyeh-Gootenberg lab (also called... was sent to the AbuGoot lab for testing, they weren’t sure what they would find… but it was safe to say...fibrosis, which can be caused by thousands of different mutations, all found in the same gene. If we only...the number of potential applications. But they weren’t done engineering quite yet – surely, they thought...
  11. CRISPR-based Genome Editing Systems For Editing in E. coli

    Type
    Blog Post
    Published
    April 13, 2021, 1:15 p.m.
    ...CRISPR-associated transposition.     References and Resources References: Jiang Y, Chen B, Duan C, Sun B, ... E. coli host, and the addition of a sacB gene renders it beneficial for plasmid clearance. It is more...concatenations into crRNA arrays targeting multiple different sites in E. coli. pCutamp cures the plasmids by...MUCICAT toolkit includes versions of plasmids with different induction systems, such as PT7, Prha, Ptet, and...Capability to construct a strain library with different gene dosages to facilitate swift optimization ...
  12. Deciphering the Mysteries of Behavior with Viral Vectors

    Type
    Blog Post
    Published
    Sept. 17, 2019, 12:40 p.m.
    ...moving around to explore the environment has a different motivation (and brain areas associated) compared...addiction. Anxiety tests Rodents have a natural preference to stay in dark areas (protected) as opposed ...associated with psychiatric diseases such as schizophrenia or bipolar disorder. In both diseases, animals...these in a  future blog post, so stay tuned!  References Alpár, Alán, et al. "Hypothalamic CNTF volume...volume transmission shapes cortical noradrenergic excitability upon acute stress." The EMBO journal 37.21 ....12 (2007): 1079. PubMed PMID: 17700574. Hare, Brendan D., et al. "Optogenetic stimulation of medial prefrontal...
  13. Save Time with Transient Plant Leaf Transformations

    Type
    Blog Post
    Published
    July 25, 2019, 12:03 p.m.
    ... lot of time. Don't re-invent the wheel. Test different leaf ages Usually younger leaves work better. ...luciferases to more easily quantify the effect of the different treatments on transformation success. Some reporter... all plasmids from the Lee-Parsons lab. Test different leaf infiltration methods Co-cultivation (Li ...in the plant but not from Agrobacterium. Test different Agrobacterium strains We used the disarmed Agrobacterium...allows you to quickly assemble vectors and test different ideas. We are a huge fan of the Golden Gate based...starting his work in the Lee-Parsons Lab.     References D'Aoust, Marc-André, et al. "Transient expression...
  14. Rett Syndrome: A History of Research and Therapeutic Outlooks

    Type
    Blog Post
    Published
    Nov. 19, 2020, 2:15 p.m.
    ...Austrian physician, Andreas Rett, who tried to raise awareness and published his observations in a German medical...hope that a similar reversal may be possible for children and adults with Rett Syndrome.  Since these discoveries...discoveries, scientists have studied how different parts of MECP2 influence Rett Syndrome. Zoghbi’s lab...varying degrees determine the clinical severity of different MECP2 mutations. More recently, the Bird lab found..., Rett databases, and other helpful tools.  References: Amir RE, Van den Veyver IB, Wan M, Tran CQ, ...Extends the Survival of MeCP2-Null Mice without Apparent Toxicity after Intracisternal Delivery. Molecular...
  15. CRISPR Activation: A Practical Guide

    Type
    Blog Post
    Published
    Aug. 18, 2016, 2:30 p.m.
    ...example, CRISPR activation has been used to differentiate induced pluripotent stem cells (Chavez et al...neuronal cells by activating genes that cause differentiation and to reverse HIV viral latency (Bialek et...already be hitting an upper bound of activation that current Cas9 systems cannot help you pass. In addition,...directed towards that gene as there can be a large difference in guide potency. Thus, in cases where users ...Chavez et al., 2016). To learn more about the different types of Cas9 activators, check out our blog post...DNA sequence or regulating gene expression.     References Behan FM, Iorio F, Picco G, Gonçalves E, Beaver...
  16. Tips for CRISPR Gene Editing in Mice

    Type
    Blog Post
    Published
    June 28, 2016, 10:59 a.m.
    ... to determine the pros and cons of using many different types of gRNA design software. When you are happy...yourself through whatever DNA supply company you currently use. You can also find many previously validated...inserted or deleted. Each lab will use a slightly different method to genotype their pups. Taking a toe, a...weeks old and use the ear tag method (creating different patterns of ear holes and using that material ...latest and greatest in scientific content.      References 1. Cho, Seung Woo, et al. "Analysis of off-target...plasmid into zygotes." Development, growth & differentiation 56.1 (2014): 122-129. PubMed PMID: 24372541...
  17. Plasmids 101: Biotinylation

    Type
    Blog Post
    Published
    Nov. 15, 2018, 1:50 p.m.
    ...solubility, and thus different reagents are useful for biotinylation in different microenvironments. There...used today in molecular biology for an array of different techniques and protocols. In this post we will...determined to be due to a deficiency in Vitamin H later renamed Vitamin B7/biotin. Egg white injury would plague...a solid substrate (Holden and Cremer, 2003). References 1. Chapman-Smith, A., & Cronan, J. E. “Molecular...post-translational modification of exceptional specificity.” Trends in Biochemical Sciences, 24.9 (1999b): 359–363....
  18. Replacing Paper: Tips for Choosing an Electronic lab Notebook

    Type
    Blog Post
    Published
    July 10, 2018, 1:08 p.m.
    ...labs. While many labs approach the situation differently, some adopting simple note-taking tools, others...functionalities with experiment records. Many different types of ELNs are available on the market today...available here. Our questions focused on researchers’ current practices, their opinions towards ELNs, and their...desired functionalities i.e. main priorities of different ELN features, ranging from whether respondents...cases this applies to universities. How are you currently exchanging information with your team? If you ... allows you to assign specific permissions to different lab members to avoid any issues later on. Do you...
  19. Five Popular Model Organisms, Part 2

    Type
    Blog Post
    Published
    Sept. 29, 2020, 1:15 p.m.
    ...similarities with humans. However, rats have some key differences in physiology, intelligence, and human correspondence... generate transgenic axolotls for an array of different studies. Elly Tanaka’s lab has constructed several...include understanding of allelic variation between different plant species and metabolic properties affecting... collections to help start your experiments! References: Blount, Z. D. (2015). The unexhausted potential...Zhang, C., & Xing, X.-H. (2018). Pooled CRISPR interference screening enables genome-scale functional genomics...Plasmids Collection Page Read our molecular biology reference Find plasmids for your research ...
  20. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

    Type
    Blog Post
    Published
    April 9, 2019, 1:13 p.m.
    ...tagged protein because of its size. This type of interference is known as steric hindrance. For instance, ...OSER whorls. This assay is quantitative and is currently the standard for assessing oligomerization in ...fluorescent protein. I prefer to describe the different parts of the fusion from N- to C-terminus. For...advisable to generate multiple constructs with different insertions, since it is difficult to predict which...can follow him on twitter: @joachimgoedhart.   References Adjobo-Hermans, Merel JW, et al. "Real-time visualization...291.5512 (2001): 2408-2411. PubMed PMID: 11264536. Klarenbeek, Jeffrey, et al. "Fourth-generation epac-based...
  21. Hot Biosensors 2022: Year-End Roundup

    Type
    Blog Post
    Published
    Dec. 6, 2022, 2:15 p.m.
    ...sensors with different ITAM/SH2 reporter pairs allow multiplexed measurement of different RTKs. Although...Improving on the glutamate sensor iGluSnFR from Loren Looger’s lab, Kaspar Podgorski and colleagues have...response. They generated variants optimized for different applications (v82 has higher affinity for glutamate...By fusing two bright fluorescent proteins with different thermal quenching rates (mNeonGreen and tdTomato...sub-millisecond resolution and sub-degree temperature differences under a variety of imaging conditions (155 μs...
  22. 3 Tips to Improve HDR Efficiency for CRISPR Editing in Human Cells

    Type
    Blog Post
    Published
    Sept. 5, 2017, 1:58 p.m.
    ... iPSCs (or correct them back to wild type), differentiate them into somatic cells affected by the disease...iPSC clone picking, a 100-fold decrease is the difference between picking 100 versus 10,000 clones! We ... experiments with blocking mutations, we still weren’t entirely happy with our editing outcomes and in...Dominik Paquet and Dylan Kwart Dominik Paquet is currently a Professor for Neurobiology at the Institute ...Tessier-Lavigne’s lab at the Rockefeller University. He currently works to understand pathological mechanisms of...developing novel iPSC-based model systems.     References 1. Cong, Le, et al. "Multiplex genome engineering...
  23. Plasmids 101: Gibson Assembly and Other Long-Homology Based Cloning Methods

    Type
    Blog Post
    Published
    March 1, 2016, 3:30 p.m.
    ...scientists have developed and fine tuned many different ways to clone DNA fragments which have provided...with an enzyme master mix, which contains three different enzymes: an exonuclease, which chews back the... this doesn’t allow for mix and match of many different fragments. One way around this is to use a combination...with a G!) but actually work by significantly different methods. Golden Gate cloning does result in the...from one vector to another. There are lots of different ways to clone these days. Gibson and the other...biology, you should consider giving it a try! References: 1. Gibson DG, Young L, Chuang RY, Venter JC,...
  24. Keeping Up With CRISPR/Cas9

    Type
    Blog Post
    Published
    March 11, 2014, 5:55 p.m.
    ...available at Addgene CRISPR-Cas9 References, Protocols, and more References: Generation of Gene-Modified ...the monkey story hit the presses, another very different bit of CRISPR news was circulating. Scientists...how CRISPR/Cas9s actually work. Last month, the Lawrence Berkeley Lab's Jennifer Doudna and Eva Nogales...this structure may help us engineer around the current limitations of the Cas9 complex," said study author...
  25. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    Published
    Dec. 20, 2022, 2:15 p.m.
    ...by Hannah Dotson in Dec. 2022.  References and Resources References Gossen M, Bujard H. Tight control...In the presence of tetracycline (Tet), TetR preferentially binds Tet over the TetO elements, allowing ... One can therefore place GAL4 and GAL80 under different promoters and create sophisticated patterns of...wondering, “why is it necessary to have all 3 of the different binary systems above if they all behave very similarly...tet-on-and-tet-off-2nd-generation Mullick, A., Xu, Y., Warren, R. et al. The cumate gene-switch: a system for...
  26. Hot Plasmids: Fall 2025

    Type
    Blog Post
    Published
    Nov. 11, 2025, 2:14 p.m.
    ...localization signal; TEVp = TEV protease. Created with BioRender.com. Using this system, the team tracked the...it is a diverse tool that can be used in many different systems, both in vitro and in vivo. Find MitoTRACER...Fang, et al., 2025). These new sensors use quite different designs, leading to unique advantages. While most...most red GECIs have been derived from just a few parent fluorescent proteins, PinkyCaMP is the first based...transplanted into the vicinity of any one of five(!) different cancer types, the tumor size was greatly diminished... & Lau et al., 2024). The method uses CRISPR interference (CRISPRi) to regulate gene expression of colorful...
  27. Exploring Applications of the Bioluminescent HiBiT Tag

    Type
    Blog Post
    Published
    Oct. 2, 2025, 1:15 p.m.
    ...by Promega scientists here.  References and resources References Hall, M. P., Unch, J., Binkowski,...overexpression — boosting levels so interactions aren't missed. But this often yields results that don'... al., 2018). The small size of HiBiT reduces interference with the native function of tagged proteins ... regulation, and context-dependent activity can render traditional tagging approaches insufficient. Vascular...., Toyooka, S., & Otsuka, M. (2025). Genomic Differences and Distinct TP53 Mutation Site-Linked Chemosensitivity...
  28. PiggyBac-ing Through the Genome Editing Field

    Type
    Blog Post
    Published
    May 31, 2016, 3:30 p.m.
    ...line with the piggyBac™ system is that it has a preference for integration at regions of open chromatin,...rearrangement (such as when a stem cell initiates differentiation), transgene silencing may occur (as it would...cassette can be incorporated, and used during the differentiation process. Moreover, a splinkerette-PCR assay...technologies and strategies for their projects. References 1. L. E. Woodard and M. H. Wilson, “piggyBac-...piggyBac-ing models and new therapeutic strategies.,” Trends Biotechnol., vol. 33, no. 9, pp. 525–33, Sep. 2015...26299960. PubMed Central PMCID: PMC4559351. 8. A. G. Uren, H. Mikkers, J. Kool, L. van der Weyden, A. H. Lund...
  29. Science Communication for Everyone

    Type
    Blog Post
    Published
    April 16, 2019, 1:05 p.m.
    ...Toronto, created The Addictive Brain to spread awareness about how scientists utilize tax-payer money and... how our articles have helped them understand different topics of science, especially disease related ...terms like manipulations, anomaly, and so on, differently than scientists would. For example, “manipulate...blogger, Chinmaya Sandangi! Dr. Chinmaya Sadangi is currently a postdoc at the University of Toronto and founder... receive our science career guide Learn about different careers in science communication Resources on...
  30. Quick, Versatile Plant Transgenesis with GreenGate Plasmids

    Type
    Blog Post
    Published
    Jan. 23, 2014, 3:23 p.m.
    ...fragments that are very different.” Because the fragments produced will have different overhangs, they can...systems. “The cloning is all done in vitro; it’s no different in mouse, human or plants,” explained Jan Lohmann...Lohmann of Heidelberg University. “What is different is the plasmids you use to bring this into your target...available, making it easier for us to do our work.” References 1. Athanasios Lampropoulos et al. "GreenGate ...
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