Skip to main content
Addgene

Enter a sequence to perform a BLAST-based search of Addgene plasmid sequence databases.

In Category

We narrowed to 808 results for: Ran;

Showing: 381 - 400 of 808 results

  1. Why Add Sucrose? Improved Yields for Adeno-associated Virus Preparation

    Type
    Blog Post
    Published
    Dec. 13, 2018, 1:14 p.m.
    ... AAV2 interacts with the packaging cell's cell membrane When packaging adeno-associated viral vectors ...to be due to the viral particle’s affinity for heparan sulfate proteoglycans on the surface of the packaging...supernatant, the viral particles associate with the cell membrane and are taken into the cell via endocytosis. In...looking to improve their AAV yields. Given the wide range of downstream applications scientists rely on our...preparation. Through sugar detection assays, in vitro transduction, and silver stain approaches we show that there...test the endocytosis of a fluorescent dye and transduction of GFP-expressing AAV particles we did not observe...

  2. Deep Dive: Statistical Tests (Comparisons)

    Type
    Blog Post
    Published
    March 7, 2023, 2:15 p.m.
    ... method entails arranging all calculated p values from smallest to largest and ranking them (1 being the...dispersion – standard deviation/error, variance, data ranges. how closely data points fall to each other (see...significance by finding the largest p value where its rank divided by the total number of comparisons performed...– Tukey’s test, Newman-Keuls, Duncan’s multiple range test, and several others. Each test has different...negatives, moderate false positives. Duncan’s multiple range test – Most powerful. Low false negatives, high ...): 126-130 (2012). 10.1097/SMJ.0b013e3182498ad5 Curran-Everett, Douglas. Explorations in statistics: statistical...

  3. 9 tips for a successful postdoctoral experience

    Type
    Blog Post
    Published
    Oct. 9, 2018, 12:21 p.m.
    ...postdoctoral fellows (PFs) face a number of challenges ranging from long periods of training to limited job opportunities...preparation) A history of successful funding (fellowship grants) A project with sufficient preliminary data to...your own lab and get an independent investigator grant (e.g. an R01 from the NIH, in the United States)...postdoctoral mentor. A good mentor typically writes the grants that fund your research, guides the research directions... available for mentees due to travel, teaching, grant writing, etc. Also, it is unlikely that a mentor...reference, informal recommendations, more positive grant application and manuscript reviews, etc. You'll ... Non-Academic Career Decisions Check out our transferable skills guide Resources on Addgene.org Learn...

  4. Creating accessible biology activities in schools with BioBits

    Type
    Blog Post
    Published
    Aug. 2, 2018, 12:56 p.m.
    ...that green fluorescent protein through transcription and translation. Unfortunately, having live cells in... like gel electrophoresis to separate DNA or transforming cells with green fluorescent protein, these ... into a host cell (through a process called transformation), essentially giving the cell all the instructions...enzymes that can convert certain chemicals into fragrances that they can smell, or enzymes that can create...perhaps consider using some elements of BioBits to transition your undergraduate students from the classroom...

  5. Viral Vectors 101: Viral Vector Elements

    Type
    Blog Post
    Published
    July 25, 2023, 1 p.m.
    ...the delivered cargo (often a gene) is called the transfer plasmid while the other plasmids with packaging... or something similar, and is contained on the transfer plasmid. If expression is the goal, a promoter...Pol, the last component, contains the reverse transcriptase and integrase components to convert the cargo...other to allow DNA synthesis of the complementary strand to yield dsDNA. Unlike LTRs, ITRs are perfectly...delivered and expressed in the host cell from the transfer plasmid. Viral packaging and entry The viral packaging...the primary viral polymerase. E4/E1A activate transcription of other relevant viral genes (including the...

  6. Why and how to start studying chromatin (with Addgene's help)

    Type
    Blog Post
    Published
    June 12, 2018, 11:40 a.m.
    ...times have you looked at a diagram depicting transcription, or DNA repair, or replication, or any number...researching enhancer elements that control the transcription of a gene a megabase away, or looking at the...the histone methylation status at a double-strand break that needs repairing. They may be looking at chromatin... protein ZMYND8 in chromatin recognition of transcription-associated DNA damage that promotes homologous... lymphocyte receptor signaling. Zhao K, Wang W, Rando OJ, Xue Y, Swiderek K, Kuo A, Crabtree GR Cell. ...Mar 27;33(6):717-26. Reporter-nanobody fusions (RANbodies) as versatile, small, sensitive immunohistochemical...

  7. Building and Validating Recombinant Antibodies: A Case Study

    Type
    Blog Post
    Published
    April 5, 2022, 1:20 p.m.
    ...-mAbs. It was recognized that an aberrant IgG light chain transcript was expressed by some of the hybridomas...heavy (blue) chains as driven by two CMV promoters (orange). Figure from Andrews, et. al., Elife  A limitation...IF-ICC.) This method was chosen because cells transfected with a plasmid to express the target antigen ...the restriction enzyme BciVI was present in the aberrant light chain sequence, but was predicted to occur...express multiple subclasses of IgG antibody. Broad range secondary antibodies are commonly used in research...

  8. Fluorescent CRISPR Reporters: SRIRACCHA and GEmCherry2

    Type
    Blog Post
    Published
    May 26, 2020, 1:15 p.m.
    ...Wen et al., 2018). SRIRACCHA uses the Piggybac transposon to stably integrate a reporter gene that contains..., you’re ready to edit. These cells are then transfected with several different constructs for the reporter... gRNAs by simply changing the gRNA used when transfecting your cells.  A plasmid that contains Cas9. The...plasmid.  With this set up, all successfully transfected cells will express RFP while cells containing... Lastly, once a mutant is identified, the PB transposase can easily and seamlessly remove the integrated...Knudsen C, Ásgrímsdóttir ES, Rahimi K, Gill KP, Frandsen S, Hvolbøl Buchholdt S, Chen M, Kjems J, Febbraro...

  9. Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification

    Type
    Blog Post
    Published
    Nov. 19, 2019, 2:08 p.m.
    ...let the team detect its co-localization with a membrane-localized mCherry or GFP protein. With this system...bind, it co-localizes with its target at the cell membrane and when the OptoNB can’t bind, it localizes to...proliferation and differentiation.  Since Ras is a membrane localized GTPase, the team fused a mCherry OptoNB...OptoNB-SOS fusion protein in cells that expressed membrane-localized mCherry. With darkness, SOS binds Ras...using a fluorescent reporter for Erk kinase translocation. These results demonstrate that OptoNBs can ...nanobodies to control protein activity Read about RANbodies, reporter nanobody fusions Learn more about using...

  10. Back to Bacteria: CRISPR gRNA Multiplexing Using tRNAs

    Type
    Blog Post
    Published
    June 2, 2015, 6:06 p.m.
    ...tRNAs contain internal transcriptional elements that enhance pol III transcription, potentially increasing...base Csy4 recognition sites from a polycistronic transcript. Although this method shortens construct size...coexpression of Csy4 with Cas9 and the polycistronic transcript. As nucleases may have off-target effects and...matching traditional gRNA-expressing constructs, transcript levels of PTG1 and PTG2 were 3 and 31 times higher... of polycistronic gene organization, and its translation to CRISPR/Cas9 shows great potential for multiplexed...

  11. Advice for Starting a Biotech Company from a Grad Student turned Entrepreneur

    Type
    Blog Post
    Published
    July 10, 2014, 7:17 p.m.
    ...community. As a result, I have occasionally pondered translating my research into a startup company. However, ...school and turn it into a biotech company. Transitioning an idea from academia to a startup Mike Koeris... biotech startup, Mike explained, his career transitioned away from the bench and became all about finding...stages in the startup". To gain insight into "the random-walk" of a budding startup, I asked Mike to outline...company may begin to prove the technology. This transition takes around 1 – 2 years. The product is the...into it.” Have any other helpful tips to help transition a project from academia to a biotech startup ...

  12. RaPID Detection of RNA-protein Interactions

    Type
    Blog Post
    Published
    Aug. 16, 2018, 12:40 p.m.
    ...and IREB2, which post-transcriptionally regulate iron metabolism pathway transcripts. By using RaPID, Ramanathan... include both scrambled RNA motifs and cells transfected with BirA* protein alone (i.e. no RNA bait). ...changes in RC2H1 protein expression and post-transcriptional regulation of SM1v1-containing RNAs could play...often trick host proteins into binding their untranslated regions (UTRs) to aid in the viral life cycle...IRE) RNA motif of the ferritin light chain RNA transcript. IRE motifs are bound by IRE binding proteins...

  13. Hot Plasmids - March 2019 - Anti-CRISPR, 2in1 Cloning, Fluorescent Voltage Indicators, and Photoswitchable Proteins

    Type
    Blog Post
    Published
    March 19, 2019, 1:31 p.m.
    ...interaction (PPI) studies in plants that rely on transient transfection systems using Agrobacterium (such as Nicotiana...indicator. Archon1 can embed itself into the cell membrane where cell voltage can then be measured. Archon1...also showed that Archon1 is functional in a wide range of animal models such as mice, C.elegans, and Zebrafish...al., 2016)). During Agrobacterium-mediated DNA transfer, each GOI is usually expressed from a different...plasmids to study PPI using Förster Resonance Energy Transfer (FRET, Heckler et al., 2015) or ratiometric Bimolecular...

  14. The Breast Cancer Microenvironment: A Tumor’s Backstage Team

    Type
    Blog Post
    Published
    Jan. 31, 2019, 1:32 p.m.
    ...microenvironment. This results in increased expression of transforming growth factor-β signaling, possibly inducing...let’s take a look at exosomes. Proficient in transportation, exosomes are tools of communication and provide... (micro RNA) and other molecules that can be transferred to other cells, inducing epigenetic changes in...in targeted cells. In this case, exosomes may transport miRNA from drug-resistant cells to sensitive ones...enzyme that controls apoptosis and regulates transcription. Without TKA1, cells proliferate and cannot .... "Intercellular nanovesicle‐mediated microRNA transfer: A mechanism of environmental modulation of hepatocellular...

  15. Career Coaching for Scientists: Why and Where Do I Find One?

    Type
    Blog Post
    Published
    Jan. 29, 2015, 1:25 p.m.
    ...help with transitioning out of academia (because so many scientists are making this transition). Another...have experience and knowledge to help scientists transition out of the academic sphere into a different meaningful...not always as effective in mentoring for this transition. Second, a coach will help you set goals and ...scientific backgrounds. For a stated purpose of transitioning a scientist from academia to industry, you might...in coaching for communication skills. Industry transition is also an area of specialty for Michelle Capes...

  16. Viral Vectors 101: Calcium Sensors

    Type
    Blog Post
    Published
    Aug. 10, 2023, 1 p.m.
    ...your expected range. For example, calcium in the ER lumen reaches the sub-millimolar range, much higher...are used to monitor calcium concentrations and transients in living cells and organisms. Unlike chemical... the (1) binding of calcium, (2) allosteric rearrangements of the sensor, and (3) subsequent change in...sensors available that will localize at the plasma membrane. GCaMP-X is a nucleus-targeted GCaMP6 with an ...an extra apoCaM-binding motif to prevent aberrant binding of the biosensor to endogenous calmodulin. Multiplexing...

  17. Chromoproteins: Colorful Proteins For Molecular Biology Experiments

    Type
    Blog Post
    Published
    Feb. 4, 2020, 2:15 p.m.
    ...chromoproteins are just now being developed for a broad range of biological inquiries.  What is a chromoprotein... a gene encoding a blue chromoprotein, after transforming them into your cells, you can simply look for... plasmids (meffRed, eforRed, asPink, spisPink, scOrange, fwYellow, amilGFP, amajLime, cjBlue, meffBlue...Image: Murakoshi et al., 2019. ShadowR is an orange light-absorbing chromoprotein that Hideji Murakoshi...imaging microscopy-based Förster resonance energy transfer (FLIM-FRET) in living cells (Figure 4). They created.... K., Tietscher, S., Edlund, A. D., Jamal, S., Wistrand-Yuen, P., … Forster, A. C. (2018). Engineering...

  18. Academic vs. Industry Postdocs

    Type
    Blog Post
    Published
    Nov. 13, 2018, 1:22 p.m.
    ...patients. And, to be honest, I’ve never enjoyed grant-writing. The more I talked to people with industry...only help. Like any major life decision, the transition felt scary. While I knew two people from graduate... to enter academia, it is easier to make that transition from an academic setting—especially if job applications...pages. In academia, however, writing papers and grants is an inescapable and essential part of being able...’re often required to at least attempt to write grants. If you don’t enjoy or excel at writing, an industry...postdoc will free you of the never-ending cycle of grant-writing that is academic life. Of course, because...

  19. Genome-wide Screening Using CRISPR

    Type
    Blog Post
    Published
    Aug. 18, 2015, 2:30 p.m.
    ... non-specific endonuclease (Cas9) and a single stranded guide RNA (gRNA). The ~20 nucleotide targeting...of wild-type Cas9 and a gRNA generates a double-strand break in the target DNA, which, when repaired through...scaled up for genome-wide screening due to the broad range of potential target sequences and ease of generating...heterogeneous population of gRNA-containing lentiviral transfer vectors, each targeting a specific gene within.... Pooled gRNAs are then cloned into lentiviral transfer vectors to create the CRISPR library. CRISPR libraries... you can skip the steps above! Cells are then transduced with lentivirus containing the CRISPR library...

  20. Plasmids 101: Choosing an Antibiotic Resistance Gene

    Type
    Blog Post
    Published
    Oct. 10, 2023, 1 p.m.
    ...in a plasmid. During the propagation and/or transformation process, some bacteria will either never receive... is nifty because the recovery period after transformation (the dreaded 60 minutes shaking at 37 degrees... available, cost-effective, timesaving for transformations. Cons: Prone to satellite colony formation ..., interchangeable with Amp, timesaving for transformations. Con: Expensive.   Kanamycin Kanamycin, or...selection gene. However, it does require a slower transformation recovery period than amp or carb (60 minutes...confers mammalian resistance to G418. Con: Slow transformation   Spectinomycin/streptomycin Spectinomycin...
Showing: 381 - 400 of 808 results