...used live virus (Cele et al., 2021). “We weren't completely shocked [with these results] because we were ... variant, which has only 9 different mutations compared to the wild-type, escaped neutralization. “That...SARS-CoV-2 variants, this study was the first to compare so many different strains. It was also the first...

...of their luciferase assay, they concluded that components in the buffer used for protein purification must...percentages (78-79% after two rounds of transduction.) Compared to CCP transduction, iTOP is at least four times...Astolfo et al. were eager to see if iTOP would be compatible with CRISPR/Cas9 genome editing. Although CRISPR...

... life science researchers. Many biotechnology companies are looking for PhD or Master’s level scientists...have done?” and “Would their academic experience compliment this sales and marketing role?”. Studying for...entrepreneurial bug and has set up an ELISA kit company on whose website you can find some great information...

.... Generation of sgRNA libraries, with maximum complexity, is achieved with synthetic oligos with a randomized... genome. Many of these techniques require more complex DNA assemblies and improvements in these methodologies...the limitations associated with otherwise more complicated assembly approaches, and opens the door for new...

...biosensor with two components - an enzyme that breaks down the HMO of interest into its component simple sugars...learn more about Xin’s work with photoswitchable components of the ERK signaling pathway in our recent blog...

...binds to TIR1 of the SCF-TIR1 ubiquitin ligase complex, promoting its interaction with the degron sequence...used ChRs in that they cause a rapid and almost complete desensitization when exposed to continuous bright...snaking through our cells’ nuclei--our chromatin is comprised of thousands of loops. These loops not only provide...

...responsible for the degradation of over 600 cellular components ultimately leading to cell fragmentation and ...FlipGFP. FlipGFP increases fluorescence 100-fold compared to other reporters (Zhang et al., 2019). How does...and (3) β-strand 11 (β11). Each part contains components and residues that are necessary for fluorescence...

... I asked participants to read short abstracts comparing the mortality rates between two controversial ...and biased. As a result, the control abstract comparing two fictional medical issues – chronic and acute...community. I brought along printed copies of studies comparing the filtration efficacy of different materials...

... of the world was locked down, a South African company wanted to test if a type of antibodies from an ... power of collaboration, which despite the competitiveness of cutting-edge research, is still one of the...need help with your scientific research. It’s completely free, of course. You can find more information...

...writing and this recent article published in PLOS Computational Biology (Frassl et al., 2018): “Science is increasingly...collaboratively writing a multi-authored paper. PLoS Comput Biol 14:e1006508 . https://doi.org/10.1371/journal.pcbi...Simple Rules for a Successful Collaboration. PLoS Comput Biol 3:e44 . https://doi.org/10.1371/journal.pcbi...

... It doesn’t have to be this way. We can never completely eliminate the risk that a minor variation in ...Press.  She trained originally in cell biology, completing her PhD at the MRC LMB in Cambridge UK and then... Vice President. Her current responsibilities encompass overall leadership of the Cell Press editorial...

...sources. While the importance of understanding these complex processes can’t be overstated, we can also learn...degradation under a variety of conditions. They are composed of 4 proteins encoded in a single operon and were...

...experience using image analysis software. If you use computer programs to predict protein structures, then you... you might know a thing or two about computer modeling. Make sure to focus on these skills. The only exception... into a communications role instead after she completed her MSc in Experimental Medicine. She is the Community...

...than a day. Diagnostic restriction digests are comprised of 2 separate steps: 1) incubating your DNA with... construct. Consider buffer and temperature compatibility when digesting with more than one enzyme. Consult...will allow you to approximate the DNA mass of comparably intense samples of similar size. Run the gel ...

...service supporters We would like to thank the companies who supported this project with funding. Alnylam...donations. That seed money was used to build a completely self-supporting service so that Addgene is not...distribution, this project involved every Addgenie in the company. Our Finance, Business and Legal teams had to pave...

...Paratore onto the Board of Directors brings complementary experience and insight to the now 10 member ... I was interested in what she shared about the company and what the goals were and so I decided to join...time on research. What do you hope Addgene will accomplish in the near future? Katz: I’m excited that Addgene...

...However, one of the many proteins which are not compatible with regular mesophilic systems are the psychrophilic...chaperones protein resulted in higher levels of growth compared to the E. coli strain expressing the empty vector... Medal in the Undergrad category at the iGEM Competition 2019. He has an active interest in scientific...

...that use reverse transcriptase to synthesize complementary DNA copies of their genome upon infecting a ...gamma-retrovirus are so closely related, their required components are very similar. While plasmids containing virus-specific...between the two systems, other, more general, viral components such as a heterologous envelope or a post-transcriptional...

...nature, extra safety measures, like replication incompetent viral particles, are required. We will be covering...infect both non-dividing and dividing cells. They accomplish this through nuclear localization signals which... immunodeficiency virus type 1 preintegration complexes.” Proc. Natl. Acad. Sci. U.S.A. 89 (1992) 6580...

...to start a more formal mentoring program at my company, but there weren't enough senior people willing... such as pre-reads, videos or exercises to be completed in preparation for the meeting or to be read or... and help each other practice meeting people – compete for fastest to set up a coffee date or most cards...

... had been collecting data and documenting the compliance of universities with the FLSA in our online resource... salary raising as the only viable option for compliance. However, 10 days prior to the implementation...opportunity of the lapsed mandate (or are being compelled at the state level, in the case of some public...

...validated their platform on clinical stool samples by comparison to qPCR and demonstrated that it can also detect...without fixation or preparation, and deliver CRISPR components for gene disruption or CRISPRi. While designed...bacteriophage shell protein or a bacterial microcompartment protein. The expression of this fusion is ...

... light sensitive and have enhanced conductance compared to current channelrhodopsins. Their new channelrhodopsins...neurons do not express as many copies of the ChRs as compared to direct injection. This lower multiplicity of...better suited for systemic delivery with PHP.eB compared to the existing ChR2(H134R).  In the second experiment...

...or tissue collection method, so biotechnology companies have marketed several products that help to further... RNAzol®, QIAzol®  and sold by many different companies). TRIzol® is an all-in-one acid-guanidinium-phenol... is the carryover of DNA that can potentially complicate results of a downstream application such as quantitative...

... was also between 1013 - 1014 vg/kg, a dosage comparable to those currently used in human gene therapy...fluorescent voltage indicators, however, fall short compared to GFP-based sensors in terms of response and ...precision of gene expression and reduces toxicity as compared to previous Cre/lox or drug-induced Cre systems...

...proteins within a system. This can be pretty complicated given that a single cell has tens of thousands...strategy a single protein can be isolated from a complex mix using affinity chromatography against an amino...then eluted using a high imidazole buffer that outcompetes the interaction between the protein of interest...

...is guided by an RNA molecule, the gRNA, to a complementary site in the genome where it will proceed to ...that Cas14 also indiscriminately cleaves non-complementary ssDNA when engaged by its target sequence. Why...Cas7-11 Cas7-11 is a naturally occurring RNase composed of the fusion of several Cas7 and Cas11 domains...

...Stanford University. Sex and gender are critical components of biological research that are often forgotten...cost at this early stage of research is minimal compared to that of human clinical trials. And, as Janine...studies that draw from a body of research that is incomplete (because sex was not analyzed) may harm humans...

...Cloner, and Snapgene), and save these to a shared computer or server. This will ensure that future members...more than two sequencing reactions. In the more complex cases, we sometimes have to design new primers ...saves us the step of purifying the DNA and gives comparable success rates and sequence quality, which is ...

...get the molecular components of CRISPR/Cas9 (Cas9 protein and the crRNA-tracrRNA complex) and the donor ...destabilizes the cell’s outer membrane and allows the components to physically enter the cells so they can go ...

...response against AdV. Importantly, recombination-competent adenovirus (RCA) can be generated if the E1 gene...negligible toxicity. However, their production is more complex and the presence of helper virus contaminants have...amplification.*Pro-Tip*: The cells will become completely confluent and the media will turn yellow. Do ...

...clusters without accumulation in subcellular compartments such as nuclear speckles. Furthermore, CRY2clust...strain can be rescued by the xanthine produced via complete demethylation of caffeine. For example, the Barrick...a 1.2-fold greater extinction coefficient when compared to sREACH. Find the FLIM-FRET acceptors here. ...

...allowing us to do up to 96 transformations in one run compared to doing about 50 transformations in the same ...increased plasmid demand it was too time consuming to complete this process by hand and we welcomed yet another...liquid handler can fill 400 vials in 35 minutes compared to a lab assisstant filling about 200 vials in...

...machinery.   Well, I’ve got some good news: complete DNA demethylation can be achieved by dCas9 alone...too.  High dCas9 and gRNA expression are key for complete DNA demethylation – tight binding is crucial for...Charlton J, Jung EJ, Mattei AL et al. (2020) TETs compete with DNMT3 activity in pluripotent cells at thousands...

...share, remix, store, and track these essential components of the scientific toolbox. What are Recombinant...subsequent purification.  Academic laboratories and companies have already begun creating plasmids encoding ...NH, Rahman MZ, He L, Xin L, Shan B, Li M (2016) Complete De Novo Assembly of Monoclonal Antibody Sequences...

...cones) or cell classes (ex: photoreceptors which encompassed both rods and cones).  Targeted expression was...retina.  Find the AAV synthetic promoter plasmids! Comparing synthetic promoters performance in mouse, monkey...targeted cells in monkey and human retinas. By comparing the performance of promoters across these three...

...well as the introduction of the cancer-fighting component, CAR. Clinical trials are underway to explore ... have involved turning on fetal hemoglobin to compensate for defects in the adult hemoglobin produced ...for use in the next few months. Several other companies have followed suite, with Beam Therapeutics initiating...

...choosing antibodies   Complexity is a key factor Biological systems tend to be complex with a variety of ...proteins interacting. Experiments tend to be equally complex with users trying to probe multiple targets in ...

...difficult to functionally manipulate and study in comparison to protein-coding genes (Rinn and Chang 2012)...deletions and insertions in the DNA sequence can completely disrupt expression of the transcribed ncRNA (...interactions between ncRNAs and adjacent genes are complex and not yet fully understood, so it is important...

...of science, even while I was a bench scientist completing my graduate studies in molecular biology and ...for the past three years. pgEd is a small team comprised of individuals from diverse backgrounds and disciplines...social context. This “general public” audience comprises the taxpayers who fund much of scientific research...