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We narrowed to 812 results for: APP

Showing: 451 - 500 of 812 results

  1. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...Addgene AAV Production protocol, I take a lazier approach for harvesting my AAV. I skip the PEG precipitation...the PEG will separate into two phases. If this happens, the solution can be cooled and the two phases ...immediately before iodixanol purification. This approach gives me a bit of flexibility since I can store...

  2. 3D Printing Meets CRISPR Cas9

    Type
    Blog Post
    Published
    Oct. 17, 2017, 12:55 p.m.
    ...of proteins. But they are still flat. To truly appreciate the 3D structure of these proteins, it is necessary...molecular viewing software.   In reality, this rarely happens. But if you ever have an opportunity to read one...invariably say something like “Oh,…I didn’t quite appreciate that….” For example, when Tom Steitz was presented...

  3. Plasmids 101: Optimizing Plasmid Yields

    Type
    Blog Post
    Published
    May 26, 2016, 2:30 p.m.
    ...are, you’ll even have DNA left over for other applications, like PCR, cloning, transfection, or long-term...wash step or use a different strain. For most applications, Addgene uses and recommends DH5𝝰! This strain...your E. coli to ensure it is suitable for your application. We have previously reviewed many common lab ...

  4. PITChing MMEJ as an Alternative Route for Gene Editing

    Type
    Blog Post
    Published
    Feb. 23, 2016, 3:30 p.m.
    ...(2015). “A Scalable Genome-Editing Based Approach for Mapping Multiprotein Complexes in Human Cells.” ...lies in the diversity of nucleases and their applications. It will be interesting to see what new editing...

  5. Tips for Using BLAST to Verify Plasmids

    Type
    Blog Post
    Published
    May 29, 2014, 1:29 p.m.
    ...reference sequence into the Subject Sequence box that appears. Aligning two nucleotide sequences is probably ...frameshift mutation present in the ORF is readily apparent when viewing blastx results. When using blastx...webservices/#pairwise_sequence_alignment_psa Happy BLASTing! Do you have any tips for using BLAST to...

  6. AAVs CREATed for Gene Delivery to the CNS and PNS

    Type
    Blog Post
    Published
    Sept. 28, 2017, 2:01 p.m.
    ... an ideal way to deliver AAV to the PNS. It’s a happy accident that AAV.PHP.S targets the PNS since it...jumble of fluorescent neurons. A simple but flawed approach to multi-color labeling is to inject a mix of ...morphologic studies), as well as translational applications (mechanistic studies and gene therapy treatments...

  7. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    Published
    Feb. 27, 2018, 2:04 p.m.
    ..., Alexa Fluor 568, or Alexa Fluor 647 before application to the sample. Staining with this multi-color...Mouse IgG2a TP1129 pTP1005 (3x cysteines) Mouse Kappa TP1170 pTP1174 (1x cysteine) pTP1172 (3x cysteines...labeling for super-resolution imaging, rapid epitope-mapping and native protein complex isolation. eLife. PubMed...

  9. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    Published
    July 30, 2020, 1:15 p.m.
    ...What the Future Holds and the Scientists Making It Happen, is an exercise in restraint. The very first subheading... primarily on fluorescent proteins and their applications, tackles much broader issues in this brief volume...ago I would have nodded my head knowingly and appreciatively throughout this chapter. Now, these observations...

  10. Summer SciComm Series: Modes of Communication

    Type
    Blog Post
    Published
    July 1, 2022, 1:15 p.m.
    ... or burn yourself out trying to slog through unappealing work in your precious free time.  And don’t be...- will be required to produce an outcome you’re happy with. Know if you’ll need specialized equipment ...then pick whichever is most accessible or most appealing to you. And if you’re not sure what all the possibilities...

  11. An Introduction to Adenovirus

    Type
    Blog Post
    Published
    Oct. 3, 2023, 1:15 p.m.
    ...which a vaccine is available. However, here it appears that the culprit for these unusual cases was either... the removal of certain adenoviral genes that apparently contribute to virulence (Tollefson et al., 1996...on the Addgene blog Viral Vectors 101: Viral Applications Adenoviral Vector Production and Troubleshooting...

  12. A Guide to Starting Your Own Journal Club

    Type
    Blog Post
    Published
    Feb. 6, 2020, 3 p.m.
    ...the most important is letting people know it’s happening. Aim for 3-4 weeks advance notice for the first...the Addgene bioinformatics journal club! What happens during journal club? There are many common ways....  These variations are suited for different applications and should be carefully chosen for each group...

  13. Tips for arabidopsis transformation

    Type
    Blog Post
    Published
    Oct. 25, 2018, 1:23 p.m.
    ...Addgene  Choosing an expression system Choosing an appropriate expression vector is the first step in generating...binary gateway vectors and can be used for promoter swapping and generating N and C terminally tagged fusion...phenotypes. For most phenotypic analysis it is appropriate to begin working in the T2 generation. The selection...

  14. Plasmids 101: Colony PCR

    Type
    Blog Post
    Published
    May 12, 2016, 2:30 p.m.
    ...primers. Find Empty Backbones at Addgene Each approach has advantages and drawbacks, which are summarized...which method you choose, make sure to use the appropriate antibiotic for selection.   Lysing bacteria...to determine their size. Make sure to use an appropriate molecular weight standard for reference and to...

  15. CRISPR Antimicrobials

    Type
    Blog Post
    Published
    May 3, 2016, 2:30 p.m.
    ...virulent or antibiotic resistant bacteria, and inappropriate antibiotic usage selects for resistant bacteria...to combat antibiotic resistance using multiple approaches. Major restaurant chains including Chipotle and...bacterial host range. To further potential clinical applications, Ando et al. recently engineered synthetic phages...

  16. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...or growth stage). A prey library can either be applied to the bait in a single population (e.g. transforming...although these can often be accounted for using appropriate replicates and controls (see Tips below), and.... Obrdlik, P., El-Bakkoury, M., Hamacher, T., Cappellaro, C., Vilarino, C., Fleischer, C., Ellerbrok, ...

  17. Cpf1: A New Tool for CRISPR Genome Editing

    Type
    Blog Post
    Published
    Oct. 14, 2015, 2:30 p.m.
    ..., Zetsche et al. developed a Cpf1 multiplexing approach using a single crRNA array to express up to 4 ...-target editing in a cell culture model. The application of Cpf1 to genome editing is exciting both in...in terms of basic science and translational applications. This discovery of this type V CRISPR system ...

  18. The Importance of a Fun Workplace: Company Culture at Addgene

    Type
    Blog Post
    Published
    Sept. 3, 2015, 2:30 p.m.
    ... result seems to be a balance of productive and happy employees. The teambuilding culture helps us build...throughout the years. This team building merriment happened naturally when Addgene was a family affair back... sure people know that there is something fun happening! Addgene actually has chimes outside of our break...

  19. AAV Titers: Where Do They Come From And What Do They Mean?

    Type
    Blog Post
    Published
    Nov. 15, 2017, 3 p.m.
    ...used to generate AAV.  One study showed that approximately 50% of viral capsids were genome-containing ...particles can be identified after negative staining and appear darker than full vector particles. This image shows...experiments? Because (physical) AAV titers are approximations and they depend highly on the experimental ...

  20. Deciphering the Mysteries of Behavior with Viral Vectors

    Type
    Blog Post
    Published
    Sept. 17, 2019, 12:40 p.m.
    ...movement in an open field box or a circular corridor apparatus using a camera or tracking software. Locomotion...and might open new ways for a novel therapeutic approach against drug addiction. Anxiety tests Rodents...measuring the time spent in a particular part of the apparatus, it turned out that the IL-1 beta overexpressing...

  21. Hot Plasmids Spring 2024

    Type
    Blog Post
    Published
    May 23, 2024, 1:15 p.m.
    ...Paul Blainey’s lab has developed a multiplexing approach to Cas9-based pooled CRISPR screens called CROPseq-multi...for microglia research and broader therapeutic applications.  Find microglia-targeting AAV plasmids here...reconstituting coding sequences for a range of applications, including CRISPR activation by dCas9-VPR, prime...

  22. Rett Syndrome: A History of Research and Therapeutic Outlooks

    Type
    Blog Post
    Published
    Nov. 19, 2020, 2:15 p.m.
    ...highlights some of the latest breakthrough therapeutic approaches. What is Rett Syndrome? Caused by a mutation ...technical challenges to overcome for both of these approaches, such as delivery of the editing machinery to...Extends the Survival of MeCP2-Null Mice without Apparent Toxicity after Intracisternal Delivery. Molecular...

  23. New Acoustic Reporter Genes: Ultrasound Imaging of Gene Expression

    Type
    Blog Post
    Published
    Jan. 24, 2023, 2:15 p.m.
    ... the bacteria were injected, limiting their applicability. They also did not scatter ultrasound nonlinearly...chromatic-opening agents to boost expression to appreciable levels. We wanted to create second-generation...ultrasound imaging of nanoscale acoustic biomolecules. Appl. Phys. Lett. 110, 073704 (2017). Hurt, R. C. et ...

  24. Tips and Tricks for Using Golden Gate Modular Cloning (MoClo)

    Type
    Blog Post
    Published
    July 8, 2025, 1:15 p.m.
    ... process, and request your sequence with the appropriate flanking restriction sites and overhangs already... help you in your MoClo quest, so good luck and happy cloning!   Resources Additional resources on the...Modular Cloning Plasmids 101: Modular Cloning Applications and Kits Plasmids 101: Golden Gate Cloning ...

  25. Plasmids 101: Shuttle Vectors

    Type
    Blog Post
    Published
    May 20, 2025, 1:15 p.m.
    ...which helps increase cellular uptake, but this approach requires compatible cell lines that express viral...individual analysis. A shuttle vector designed for this approach in a mammalian cell experiment should still include...terms are typically used in different (though overlapping) ways. Broad host range plasmids are those that...

  26. Advanced Uses of Cre-lox and Flp-FRT - A Neuroscientist’s View

    Type
    Blog Post
    Published
    Oct. 19, 2017, 1:54 p.m.
    ... its reintroduction, inversion and re-inversion happen at the same probability. Continuous inversion of...the same time from two different plasmids this approach becomes problematic as it reduces the probability... Cell Types for Imaging and Long-Range Circuit Mapping.” Journal of Neuroscience 28(28): 7025–30. PubMed...

  27. Changing Labor Laws Bring Increased Postdoc Wages

    Type
    Blog Post
    Published
    Oct. 25, 2016, 2:30 p.m.
    ...institutions, or institutions they're thinking about applying to, are doing - for example, your benefits may...get rid of postdocs; that current postdoctoral appointments may shorten in length; that postdoc salaries...trainee workforce has clearly not been a sustainable approach to biomedical research in the U.S. and postdoctoral...

  28. The Challenges of Cell Culture

    Type
    Blog Post
    Published
    May 5, 2016, 2:30 p.m.
    ...especially with industry. Today we also have the appropriate tools to verify our cells lines. Even if you ...the results are reliable. With this two-pronged approach, the many mistakes of the past can be prevented...including GSK, AstraZeneca-MedImmune, and Infors & Applikon. Due to his high level of experience he now travels...

  29. Harnessing Bacterial Toxins for Allelic Exchange

    Type
    Blog Post
    Published
    Aug. 15, 2019, 12:30 p.m.
    ...References Espah Borujeni, Amin, Anirudh S. Channarasappa, and Howard M. Salis. "Translation rate is controlled...Scarless Modification of Proteobacterial Genomes." Applied and environmental microbiology (2019): AEM-00990...chromosomal gene replacement in Escherichia coli." Appl. Environ. Microbiol. 81.15 (2015): 5103-5114. PubMed...

  30. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

    Type
    Blog Post
    Published
    April 9, 2019, 1:13 p.m.
    ...study its function is one of the most popular applications of fluorescent proteins. These fusion proteins...targeted to the endoplasmid reticulum based on the appearance of OSER whorls. This assay is quantitative and...linker sequence short In the early days of GFP applications, many were concerned with steric hindrance by...

  31. The Fluorescent Vegetables in Aptamer Soup

    Type
    Blog Post
    Published
    Jan. 29, 2019, 2:27 p.m.
    ...enjoy a warm meal on a winter day, you should be happy to learn that many DNA-based reagents are named ...aptamer soup by exploring the development and applications of fluorescent RNA aptamers in Addgene’s collection...fluorescence when bound to DFHBI despite being approximately half the length (Warner et al., 2014); its length...

  32. CRISPR 101: Validating Your Genome Edit

    Type
    Blog Post
    Published
    Nov. 3, 2022, 12:15 p.m.
    ... explain how to verify that your cells were appropriately edited for your desired mutation - insertion...frequency is 50%, then you could infer that approximately 25% of cells are likely -/-, 50% are -/+, and...sequencing confirmation. All knock-ins A method applicable to knock-ins both large and small is a software...

  33. New Optogenetic Tools for Cytoskeleton and Membrane Control

    Type
    Blog Post
    Published
    Sept. 28, 2023, 1:15 p.m.
    ... barrier of the endothelium, but they could be applied to study other actin-dependent processes in cells...) and to introduce unnatural head groups for applications like fluorescent labeling via click chemistry...constructs are great for in vitro biocatalytic applications where toxicity doesn’t matter. Plus, for folks...

  34. Multiple Plasmids at a Low Price: Kits from Addgene

    Type
    Blog Post
    Published
    Sept. 14, 2016, 2:30 p.m.
    ...polycistronic E. coli expression constructs. Some applications of plasmids from this kit include the production...can be engineered to bind specific RNA bases. By swapping out these different modular repeat segments, you...variety of functions via different fusions. Some applications of PUF protein fusions reported in the literature...

  35. Technologies Enabled by NanoLuc® Luciferase

    Type
    Blog Post
    Published
    Feb. 8, 2018, 12:17 p.m.
    ...et al (2). In this post, I’ll cover two great applications of the NLuc technology. The first couples NLuc...the coupled luciferase. This strategy was first applied using RLuc8, an engineered Renilla luciferase, ...fluorescence. The paper reports a wide variety of applications of the Enhanced Nano-Lanterns including monitoring...

  36. CRISPR 101: Epigenetics and Editing the Epigenome

    Type
    Blog Post
    Published
    June 24, 2020, 5:45 p.m.
    ...to specific DNA sequences. Non-editing CRISPR applications direct catalytically dead dCas9 fused to a variety... publication at Addgene. Klann TS, Black JB, Chellappan M, Safi A, Song L, Hilton IB, Crawford GE, Reddy...Ruan K, Wang F, Xu G, Hu R (2016) A CRISPR-based approach for targeted DNA demethylation. Cell Discovery...

  37. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    Published
    Dec. 20, 2022, 2:15 p.m.
    ...for sphingomonads and other Alphaproteobacteria. Appl Environ Microbiol. 2013 Nov;79(21):6795-802. doi...cumate-inducible gene expression system for Bacillus. Appl Microbiol Biotechnol. 2019 Jan;103(1):303-313. doi...expression of genes for metabolic engineering applications in Saccharomyces cerevisiae.” FEMS Yeast Res...

  38. Viral Vectors 101: Optogenetic Tools

    Type
    Blog Post
    Published
    June 27, 2023, 1:15 p.m.
    ...tools Once you’ve selected the class of tool appropriate for your experiment, you’ll need to find a specific...Yizhar, O., & Deisseroth, K. (2012). Principles for applying optogenetic tools derived from direct comparative...

  39. Hot Plasmids: Spring 2025

    Type
    Blog Post
    Published
    June 3, 2025, 1:15 p.m.
    ...popular choice for a variety of synaptic imaging applications. Find iGluSnFR4 plasmids here! Aggarwal, A....that they could reprogram the genomic target by swapping the homology arms for new targets. And, importantly... is scarless, unlike previous integrase-based approaches. Find STITCHR plasmids here! Fell, C. W., Villiger...

  40. Quick Guide to All Things Lentivirus

    Type
    Blog Post
    Published
    March 21, 2017, 2:30 p.m.
    ...have been increasingly popular in fundamental and applied research since their first use in the early 90’... at transferring the gene of interest to the appropriate cells, it was obvious that its safety was a disadvantage...either tTA or rtTA (FUW-M2rtTA). In this kind of approach, a population of cells might express only the ...

  41. Transferable Skills Guide: Teamwork

    Type
    Blog Post
    Published
    Nov. 28, 2017, 2 p.m.
    ...cross-team guy” at Addgene, an unofficial title that I happily embrace (and admittedly, I may have started that...identify as one.  But some time around 10th grade, I snapped out of the phase of my life that had me listening...you’re part of a team - it will just make you a happier person. What does a good team need? Besides that...

  43. CRISPR 101: Multiplex Expression of gRNAs

    Type
    Blog Post
    Published
    Sept. 10, 2020, 11:45 a.m.
    ...chance that all the edits you want to make will happen.  There are many reasons to multiplex gRNAs, some...adjacent to the sites. When digested with the appropriate Type IIS enzyme, the unique flanking overhang...subsequent “bricks” to be added one by one. This approach is especially useful for combinatorial analyses...

  44. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...huge innovation, there was a limitation to this approach. CBEs and ABEs are base transition editors. They...GBEs), Xueli Zhang’s lab, returned with a unique approach to improving C → G editing. Instead of fusing ...abasic site. In this post, it refers to the same approach as a CGBE. BER Base Excision Repair A cellular...

  45. New Antibodies in the Lab Animation!

    Type
    Blog Post
    Published
    Nov. 19, 2024, 2:15 p.m.
    ...Thinking about using antibody-based applications in your experiment...but not sure where to start or ...or quick refresher on — these common antibody applications.  Thanks for watching, and we hope you found...

  46. #DeckTheLab to Win a Tasty Winter Treat This Holiday Season

    Type
    Blog Post
    Published
    Nov. 30, 2015, 3:30 p.m.
    ...wintertime festivities! Help us spread some cheer by snapping a photo of you and your labmates celebrating the... the New Year. Will your lab be a lucky winner? Happy holidays from all of us at Addgene! We look forward...

  47. 'Tis the Season to #DeckTheLab

    Type
    Blog Post
    Published
    Dec. 2, 2016, 3:30 p.m.
    ... Why #DecktheLab? Help us spread some cheer by snapping a photo of you and your labmates celebrating the... the New Year. Will your lab be a lucky winner? Happy holidays from all of us at Addgene! We look forward...

  48. SciComm with the Experts at Science in the News Part 1

    Type
    Blog Post
    Published
    March 16, 2017, 1:06 p.m.
    ... when Communicating with Non-Scientists How to Approach Different Audiences Listen to the SITN Podcast...Addgene Blog Check Out our Interview with Science Rapper Tom McFadden Learn about SITN's work at DayCon ...

  49. Twelve Amazing Guest Blog Contributors!

    Type
    Blog Post
    Published
    Nov. 26, 2024, 2:15 p.m.
    ...Performing In Vivo CRISPR Screens Using the FITS Approach Caitlin Faulds, who introduced the very first...Modular Cloning and Plasmids 101: Modular Cloning Applications and Kits We are very grateful for each and...

  50. Antibody Data Repositories and Search Engines

    Type
    Blog Post
    Published
    Oct. 31, 2024, 1:15 p.m.
    ... specificities, from target-specific ones to application-specific ones to anything goes. We've shared ...repositories and search engines Website Targets Application Purpose Notes Antibodypedia Any Any...
Showing: 451 - 500 of 812 results