We narrowed to 738 results for: HA
-
TypeBlog PostPublishedOct. 25, 2016, 2:30 p.m....University of California system, the postdoc union has negotiated a raise from $43,692 to $48,216, an increase...increase in salary of 58.3%. University of Delaware has a minimum of $36,360, requiring an increase of 30.6%...Hospital is the only part of the Harvard group that has responded to the FLSA at the time of writing, and...good thing. Reliance on a cheap trainee workforce has clearly not been a sustainable approach to biomedical...biomedical research in the U.S. and postdoctoral training has not been demonstrated to be required for the jobs...
-
5 Reasons to Use Reddit for Science Communication
TypeBlog PostPublishedOct. 20, 2016, 2:30 p.m....into Reddit. Here are some reasons why: 1. Reddit has a large and active community of people interested...right - the Reddit community is active, engaged, and has great questions! 2. The r/Science subreddit is well...the internet, using dialogue). Luckily r/Science has a great team of moderators who facilitated scheduling...preferred time to start answering questions. r/Science has pretty strict rules about not being too sales-y in...the requested topics to the Addgene blog The blog has many other excellent posts on science career topics... -
Tips for CRISPR Gene Editing in Mice
TypeBlog PostPublishedJune 28, 2016, 10:59 a.m....Samantha Young. The use of CRISPR/Cas9 for gene editing has expanded since its adaptation for use in mammalian...biology surrounding a particular gene (although it has been quite successfully adapted for use in screening... method for validating your selected gRNA’s, and has the bonus benefit of supplying you with primers for...sturdier than the delicate RNA and therefore there has less chance of contamination with RNase leading to...products will give specific details on what exactly has been inserted or deleted. Each lab will use a slightly... -
Addgene: The First Twenty Years
TypeBlog PostPublishedDec. 19, 2024, 2:15 p.m.... is an amazing service to biology scientists and has saved countless hours of lab time (in both donating...have at least one plasmid deposited at Addgene that has been distributed more than 100 times. “I really...ready-to-use viral vector preps. Today, that number has grown to over 114,600 viral preps. And in 2025, we...resources like this are why my brand of neuroscience has exploded. Because we have a resource like Addgene... -
Antibodies 101: Affinity Reagents
TypeBlog PostPublishedApril 14, 2022, 1:15 p.m.... Disadvantages Every rose has its thorns and every affinity reagent has its downsides. These reduced-in-size...created in lab in situations where a suitable antibody has been identified but a smaller or less immunogenic...using combinatorial libraries, and high specificity has been reported for a number of targets. Due to their... -
Viral Vectors 101: An Introduction to AAV
TypeBlog PostPublishedMay 30, 2023, 1:15 p.m.... and serotype, respectively. For example, AAV2/8 has a type 2 ITR and a type 8 serotype. Almost all vectors... components Cargo capacity Empty rAAV has a cargo capacity of ~ 4.7 kb, meaning that your gene...usually quite stable and in some mammalian tissues has shown expression for several years (Wonjo et al.,...scAAV vector with half the size of the ssAAV genome has a mutation in the terminal resolution site (TRS) ... -
Announcing the Winners of the 2021 Michael Davidson and Roger Tsien Commemorative Conference Awards
TypeBlog PostPublishedAug. 5, 2021, 12:15 p.m....developing and optimizing biosensors in the lab. He has recently developed a third-generation intensiometric...release from hundreds of synapses at once. “This work has only been made possible due to the collaborative ... at the German Cancer Research Center (DKFZ) who has developed new redox sensitive GFP2 (roGFP2)-based...Qiu’s work on the PV neurons is in progress, she has validated the dual virus method to study CR neurons... -
Mapping the 4D nucleome with CRISPR/Cas9
TypeBlog PostPublishedAug. 11, 2015, 2:30 p.m....nuclease activity, catalytically dead Cas9 (dCas9) has many applications, the most well-known being transcriptional...transcriptional activation/repression. dCas9 has also previously been adapted to fluorescently label a sequence...imaging time for this technique. The NIH Common Fund has made mapping the 4D nucleome a specific priority,... -
New Videos: Addgene Lab Tips
TypeBlog PostPublishedFeb. 15, 2018, 2:41 p.m....Addgene has distributed over 800,000 plasmids since 2004. In that time, our lab has gotten a lot experience... -
Custom CRISPR Screens & the Green Listed Software
TypeBlog PostPublishedJuly 11, 2017, 2:30 p.m.... population level, but each individual cell only has a maximum of one gene knocked out. In this genetically...containing up to around 200,000 different gRNAs. It has been suggested that researchers should use ~400X ...than gRNAs in a screen, to ensure that each gRNA has a good chance to contribute to the screen. In the... If you are lucky and find that a druggable gene has a central role in your system, you could majorly ...guest blogger Fredrik Wermeling! Fredrik Wermeling has a research group at the Centrum for Molecular Medicine...Medicine, Solna, Karolinska Institutet, in Sweden. He has a particular interest in using molecular tools to... -
Quick Guide to All Things Lentivirus
TypeBlog PostPublishedMarch 21, 2017, 2:30 p.m....promoter of the 5’LTR has been deleted to reduce its activity. A CMV or an EF1α promoter has been inserted in...The risk of generating RCL is low but extra care has to be taken especially if you are working with proto-oncogenes...previously used to drive expression from the LTRs) has been removed, Rev (which facilitates nuclear export...expression. In contrast, in the Tet-on system, tTA has been modified (and renamed rtTA) to bind TRE only...viral binding. This method, called spinoculation, has been found very effective for T cells transduction... -
RNA Interference in Plant Biology: New Tools for an Old Favorite
TypeBlog PostPublishedOct. 27, 2020, 1:15 p.m....It is fair to say that CRISPR has revolutionized molecular biology and has enabled functional studies in...enzyme named Dicer (Figure 1). The plant kingdom has expanded its repertoire of Dicer enzymes and these...knockout methods of the same gene. However, recent work has called this prevalent assumption into question. Specifically...multiple target sequences are concatenated. hpRNA has been extensively used in plant research and many ...constructs are available to the community. Each construct has unique features, such as inducible expression of ... -
A History of Genome Engineering in Popular Culture
TypeBlog PostPublishedFeb. 25, 2020, 2:15 p.m.... techniques is a speculation of yesteryear which has been realized recently. Science Fiction (SciFi) writers...even before the discovery of genes themselves. How has scientific progress in genetic editing impacted the...technology on various non-scientific platforms, CRISPR has also transcended into the world of SciFi. This is...and most important genres of literary fiction. It has always served as a vision of the future and to make...and agriculture, its portrayal in popular fiction has been largely negative. But these negative depictions....1126/science.1258096 Gaudelli NM, Komor AC, Rees HA, Packer MS, Badran AH, Bryson DI, Liu DR (2018) Publisher... -
Finding Your Perfect Job After University
TypeBlog PostPublishedJan. 12, 2016, 3:30 p.m....industry just wasn't for me, and as has been highlighted recently it has become more difficult to attain ...interesting and luckily genetics is a sector which has been rapidly growing. These factors left me optimistic...because it is a small and dynamic company and so it has the flexibility of a ‘start-up’. I was surprised ...schedule. I really love my highly varied role, it has allowed me to travel and to share my passion for ...everyone. My career path may seem quite unusual but it has allowed me to try out working in many different sectors... -
Progress Towards a PAM-Free CRISPR
TypeBlog PostPublishedMarch 7, 2024, 2:39 p.m.... Fig. 1: SpCas9 has sparse PAM coverage in the human genome. SpRY Cas9 has PAM sites covering the... a PAM with no sequence constraints, or at least has looser or different requirements. Luckily, there ...alternative PAM requirements (Zhao et. al, 2023). xCas9 has been shown to be less effective at NGH PAMs, though... -
Lab Automation at Addgene
TypeBlog PostPublishedMarch 22, 2018, 1:28 p.m....Automating bacterial transformation One protocol that has been automated is high throughput transformation....benefits of the Biomek FxP is it’s customizability. It has a large deck that can house many different types ... how long to keep it there. In addition, the FxP has two robotic, mobile pods - one pod can pick up 96...cap sealer. This is a simple table top device that has a roller to go over caps and push them into micronic... -
Corralling and Cornering the Goldilocks Antibody
TypeBlog PostPublishedAug. 9, 2022, 1:15 p.m...., that informs us that this antibody has specific binding and has a strong signal. We call the unique ...strong signal has a shorter exposure time than the negative control, and a weak signal has a longer exposure... -
Antibodies 101: Conventional vs Spectral Flow Cytometry
TypeBlog PostPublishedAug. 3, 2023, 1:15 p.m...., full spectrum flow cytometry (“spectral flow”) has emerged as a particularly useful tool for those wishing...for PE. In order to correct for this, compensation has to be applied to “subtract” this spillover and correctly...they can more easily be detected. Cytek’s website has a convenient tool, called the similarity index, which...beads or cells. Overall, spectral flow cytometry has the ability to generate incredible amounts of data... -
Adeno Associated Virus (AAV) for Cell and Gene Therapy
TypeBlog PostPublishedNov. 7, 2017, 1:59 p.m.... development and function. To date, gene therapy has been used to treat 10 infants with this disease. ... nucleic acid cargo (DNA or RNA) to target cells has been challenging. A variety of vector delivery technologies...AAV is not associated with any pathogenicity and has a low immunogenic profile. AAV was first discovered...Harshana S De Silva Feelixge is a researcher whose work has focused on gene therapy for viral infections. She... -
Plasmids 101: Terminators and PolyA signals
TypeBlog PostPublishedMarch 31, 2016, 2:30 p.m.... transcriptional read-through. Chris Voigt’s lab has characterized a set of prokaryotic terminators and...for eukaryotic termination are understood and it has been noted that each eukaryotic RNA polymerase terminates...combination with certain viral packaging systems has been associated with reduced viral titer, but improved...Expression Levels of Lentivirus-Delivered Transgenes but Has the Potential to Reduce Viral Titer in a Promoter-Dependent...