We narrowed to 846 results for: ELL
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TypeBlog PostPublishedNov. 7, 2014, 2:56 p.m....degraded, cell still can methylate DNA hsdS(rk-,mk-) Unmethylated DNA not degraded, cell cannot methylate... gal Mutation in galactose metabolism pathway Cells cannot grow on galactose only gyrA, gyrA96 DNA...permease inactivated, lactose cannot be taken up by cell mcrA, mcrBC Inactivation of pathway that cleaves...gene that maintains the plasmids at ~250 copies per cell. F- ∆lac169 rpoS(Am) robA1 creC510 hsdR514 endA...rpsL20 xyl-5 leu mtl-1 Stbl4 Electrocompetent cells for cloning and storage of unstable DNA and lentiviral...
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Kwabena Duedu on Public Health, Biofuels, and Doing Science in Ghana
TypeBlog PostPublishedDec. 20, 2016, 3:30 p.m....institutions in Ghana and most recently got his PhD in cell and molecular biology at the University of Edinburgh...developing novel systems for bioconversion of cellulosic biomass to useful products under Professor Christopher...Plasmid Grant. For this grant, we’re working with fellow nonprofit, Seeding Labs, to distribute plasmids...Kwabena plans to use his research experiences as well as plasmids from Addgene to bring new opportunities...biology, DNA assembly methods, and engineering cellulose degradation. 18:21 - 23:26 : Kwabena's plans for... -
Antibodies 101: Multiplex Immunofluorescence
TypeBlog PostPublishedMay 23, 2023, 1:15 p.m....immunocytochemistry (ICC) when the sample is cultured cells or immunohistochemistry (IHC) with tissues), where...know if they co-localize at the same place in the cell? Or you know that the presence of several biomarkers...tissue sections, methanol- or paraformaldehyde-fixed cell samples, or other preparations. Sequential IF For...anti-CASPR (green), and anti-Kv2.1 (cyan). (B) Cerebellum labeled with anti-GABA-AR β1 (white) and anti-GABA-AR...hippocampus, or counting the number of puncta in each cell. When making figures for a paper or presentation...approach for deep phenotyping and spatial analysis of cells in complex tissues. Proceedings of the National ... -
Developing Transferable Skills During Science Training
TypeBlog PostPublishedJune 3, 2014, 2:14 p.m....transferable skills while you are also learning to be an excellent scientist. Leadership and management Take a lead...always involved. Demonstrating your ability to work well with others can be done in many ways… and many labs...supportive editors so your first drafts are always excellent Technical knowledge and creativity Become a “...Employers and academic departments want to be able to tell that you know about something and are passionate...local networking and trade organizations Another excellent perspective on this topic can be found on the ... -
Let There Be LITE Plasmids
TypeBlog PostPublishedNov. 21, 2013, 3:56 p.m.... vectors and genetically target them to specific cell populations. They demonstrated use of the LITEs ...non-invasively, its use is not restricted to cultured cells but extends to freely moving animals, as established...novel mode of optogenetic control of endogenous cellular processes." The LITE system can now be applied...no means limited to particular model organisms or cell types. “This tool is really flexible and modular...supernatant. (The details can be found here.) So tell us, readers, how will you get creative with LITE... -
Supporting Rare Disease Research with BeHeard 2017
TypeBlog PostPublishedJuly 20, 2017, 2:30 p.m....plasmids to upregulate their expression in specific cells. With a more concrete understanding of the molecular...molecules targeting SMN1 and its partners in mouse cell lines. Dr. Di Schiavi hopes that these studies will... Mesothelioma Noushin Nabavi is a Postdoctoral Fellow at the Vancouver Prostate Center and is affiliated...that affects the lining of the lungs is relatively well known, there are a variety of lesser known mesothelioma... of ~30 patient derived peritoneal mesothelioma cells lines and assess their tumorigenesis. These experiments... -
Deep Dive: Statistical Tests (Comparisons)
TypeBlog PostPublishedMarch 7, 2023, 2:15 p.m....statistical tests – when to use them, what they can tell you, and how to identify which one is right for ..., and mode give you a summary snapshot without telling you anything about outliers or data spread within...Distribution - spread of data; typically, normal (bell curve) or skewed (see Fig. 2). Assumptions – ... up to two independent variables. This test will tell you if there are significant differences between... the means of your groups. However, it will only tell you if differences exist somewhere within your data...crop production (though you would not be able to tell if the dependent variables worked synergistically... -
Sensing Neuronal Dopamine
TypeBlog PostPublishedJuly 30, 2019, 12:59 p.m....circuits are generally linked to dopamine (DA), a well-known reward chemical and neurotransmitter. But ...firing patterns (or the frequency of its release) are well understood, the direct effect of DA binding to a...the brain has been in vivo microdialysis of extracellular fluid (Darvesh et al., 2011). This technique... across the semipermeable membrane from the extracellular fluid into the perfused liquid. The probe then...detection of dopamine in flies, fish, and mice." Cell 174.2 (2018): 481-496.PubMed PMID: 30007419. PubMed... -
New Viral Vectors - Fall 2024
TypeBlog PostPublishedOct. 3, 2024, 1:15 p.m....the fall colors are inspiring you to paint your cells in equally vivid colors, you'll want to check out...AAV9-X1.1 enables expression in brain endothelial cells via an injection into the systemic circulation. ...levels compared to AAV9. You can now target these cells with AAV-CAG-GFP packaged in AAV9-X1.1! We also...recombinase or a fluorescent marker in the various cell types of the basal ganglia. They work via newly-...before. We have a bunch of other new AAV vectors as well — including next-generation biosensors for GABA,... -
Addgene's a Nonprofit? Nonprofit Awareness Day 2017
TypeBlog PostPublishedJune 5, 2017, 3:19 p.m....profit motive. We build this trust by keeping excellent records and maintaining confidentiality where ... Addgenies like the nonprofit company culture as well. We work every day to do a better job of enabling...Jessica, Joel, Jonathan, Justine, Karen, Kate, Kayla, Kelly, Kory, Kris, Leila, Lianna, Luke, Marcy, Mary, Max...Melina, Meron, Michael Lo., Michael Le., Michel, Michelle, Morgan, Natashia, Nicole, Olivia, Pamela, Racheal...Addgene Blog Learn about Our Collaboration with Fellow Nonprofit Seeding Labs Addgene Supports Rare Disease... -
Tips for Improving Your Next Manuscript
TypeBlog PostPublishedNov. 22, 2016, 3:30 p.m....sweat, and tears, as well as the whole point of the paper. They should be able to tell your story for you...I am writing isn’t well written, I must write everyday in order to get better. Well what does that mean...interaction of critiquing others’ manuscripts as well as being critiqued added an extra level of application... -
ReFigure: Save Scientific Figures into Dashboards and Share Your Insights
TypeBlog PostPublishedDec. 13, 2017, 3:20 p.m.... remember what happened when drug X was added to cell line Y, or the phenotype of a mouse with a specific...comparison of the same experiment from different cell lines/model systems ReFigure allows you to make...the right experiment! The ReFigure extension also tells readers if a paper they’re reading has been linked... to show that a previously used reagent performs well, or you might publish a replication experiment that...immuno-oncology. Funding agencies such as the NIH and Wellcome Trust now accept interim research products (pre-registration... -
Hot Plasmids - October 2022
TypeBlog PostPublishedOct. 6, 2022, 1:15 p.m....two-photon microscopy. Cell, 18, 3408 - 3425.e29. (2022). https://doi.org/10.1016/j.cell.2022.07.013. ...voltages. This includes monitoring of fast bursts, as well as slow up/down voltage states in deep tissue, in...voltage fluctuations. Image credit: Liu Z, et al. Cell. 2022. Find JEDI-2p viral preps here (and here...specific for human c-myc proto-oncogene product. Mol Cell Biol. Dec;5(12):3610-6.(1985). doi: 10.1128/mcb.5.12.3610... -
CRISPR/Cas9 FAQs Answered!
TypeBlog PostPublishedMarch 13, 2014, 4:08 p.m....allows you to sort for GFP-positive cells and to enrich for those cells that were positively transfected....introduction of a mutation into the genome, how can cells with that mutation be selected/screened? A4: Before...can use a selection marker to select transfected cells (for example, plasmid with a puromycin resistance...paper). If you detect positive HR, isolate single-cell colonies, grow them up, then perform individual ... -
Addgene Receives NIH BRAIN Initiative Grant to Create Open-Access Recombinant Antibody Resource
TypeBlog PostPublishedMay 25, 2021, 2:29 p.m....these issues by creating immortal antibody-producing cell lines (hybridomas) that secrete antibodies in culture...reproducible production. However, even clonal hybridoma cell lines can produce more than one mAb (Bradbury et...about recombinant antibodies in this blog post. Hello, NABOR! Addgene will bring the same open-access ...resource of plasmids encoding recombinant antibodies as well as other affinity reagents such as single-chain ...need for an open-access, molecularly defined, and well validated collection. I’m thrilled to be working... -
CRISPR Challenges: Standardization and Homology Directed Repair
TypeBlog PostPublishedFeb. 14, 2018, 2:36 p.m....to learn much more about cellular DNA repair pathways. An emphasis on cellular repair post-CRISPR cleavage... a common thread at the meeting. The new Somatic Cell Genome Editing program, run through the NIH Common..., which alter genomic DNA without the need for cellular HDR. Having had time to digest my notes, since...Improve HDR Efficiency for CRISPR Editing in Human Cells Hands-on tips for repair template design from guest... -
Plasmids 101: A Brief History of Plasmids and an Improved eBook!
TypeBlog PostPublishedOct. 29, 2015, 2:30 p.m....R-factors could be transferred between bacteria via cell-to-cell contact; however, scientists noted that, unlike...cytoplasmic factors that could be transferred between cells. At the time, these extranuclear agents of heredity...PMCID: PMC3785787. References: Lederberg, Joshua. "Cell Genetics and Hereditary Symbiosis" Physiological...Transmissible Drug Resistance in an Epidemic Strain of Salmonella Typhimurium.” The Journal of Hygiene 60.3 (1962... -
Choosing Your Fluorescent Proteins for Multi-Color Imaging
TypeBlog PostPublishedOct. 9, 2014, 3 p.m....to supplement your cells with biliverdin for maximal brightness. In mammalian cells, one of the improved...Imaging Center at UCSF. A common requirement for live cell imaging experiments is the ability to follow multiple...emission spectra of the protein, so that the protein is well excited by your microscope and the fluorescence ...laboratory of Ronald Vale, after which he was a fellow at the Bauer Center for Genomics Research at Harvard... -
The Many Reasons for Irreproducible Research- and a Vaccine to Eradicate It
TypeBlog PostPublishedJan. 30, 2020, 2:15 p.m.... Many thanks to our guest blogger David Mellor! David Mellor leads the policy and incentive programs ...This post was contributed by David Mellor from the Center for Open Science. In the last decade, researchers...Before coming to the Center for Open Science, Dr. Mellor worked with citizen scientists to design and implement...at https://orcid.org/0000-0002-3125-5888 and @EvoMellor. ... -
Early Career Researcher Toolbox: Social Media for Scientists
TypeBlog PostPublishedDec. 11, 2018, 12:46 p.m....can also find Dr. Page and Hello PhD on Twitter: @ThePurplePage and @HelloPhD "Role" call. #BLACKandSTEM...Science Communication” at the American Society for Cell Biology (ASCB) 2018 Conference. I don’t exactly ...Scientists SHOULD Be Using Twitter" podcast from Hello PhD In this podcast the hosts, Josh and Dan, discuss...there’s some great reminders for Twitter pros as well, like tip #4: “Follow people for about a week and...