...balance and were content. As a worker, there are expectations whether or not you work in the lab. My first...capstone projects during the Summer Intern Poster Presentation.  As someone who had limited experience ..., I worked on my capstone project report and presentation, during the final week at Addgene. This report...

...research is improving lives worldwide and the presentation made it clear how important it is for us to ...say we all got very good at applying temporary tattoos on the spot with our trusty spray bottles! We also...early on Saturday morning, John Doench’s opening presentation at the CRISPR screens symposia outlined the ...

...another email notifying me of my acceptance. I was ecstatic! I was going to become a serious scientific wordsmith...course was breaking up into focus groups with a facilitator. In the focus groups, we were required to critique... D. Stacey is a Ph.D. student at East Tennessee State University. He works with gene expression in Pseudomonas...

... the endogenous ligand or drug. In the inactive state, the luminescent chimeric protein Gα-Rluc8 and Gγ-GFP2...resulting in a decreased GFP2 emission. The activation state can be measured by a BRET2 ratio, which is the ratio...These plasmids are available as a collection, facilitating screening across the transducerome, to gain ...

...wild-type version of YGOI to rescue a mutated strain or a mutated version of YGOI to test the different...different phenotypes of the specific mutations. For these purposes Addgene has a large collection of yeast expression...

...negative regulation and can be manipulated with mutations in the replicon. For example, the pMB1 ori maintains...per cell, while pUC – which differs by only two mutations – will produce as many as 700 copies per cell.... numbers since the bacteria have just reached stationary phase, but the cells have not started to die ...

...calls, how about trying your hand at a video presentation? Most video platforms make it easy to record...get their input as well. Giving a great video presentation is going to be a useful skill for the foreseeable... Science: Where to Search for Funding The Ohio State University; Graduate Student Funding Opportunities...

...your messaging and your expectations of your audience, and their expectations of you, consistent and clear... racial/ethnic background, patient or caregiver status, geographic location, sense of humor, media consumed...

...-Beltran et al., 2021 with permission.   Mutations in the spike protein are one of the key drivers...the B.1.351 variant, which has only 9 different mutations compared to the wild-type, escaped neutralization... degree of escape from a very small number of mutations was surprising,” says Balazs.   Figure ...

...the Center for Applied Plant Sciences at The Ohio State University. Established in 1991, the Arabidopsis...Arabidopsis and related species. Located at The Ohio State University in Columbus, Ohio, ABRC ships more than...the Center for Applied Plant Sciences at The Ohio State University. In her work, she focuses in public engagement...

...Historically, glutathione-S-transferase (GST) fusion proteins have been immobilized on a reduced glutathione matrix...protein-ligand interaction approaches that of GST-glutathione. Biotin-based immobilization for kinetic analysis...

... Nucleic acid based machines Recombinase-based State Machines Enable Order-dependent Logic in vivo Nathaniel...received by a cell. These so-called recombinase-based state machines could potentially be used to report upon...this post to learn more about recombinase-based state machines and how they function. Adapting Toehold...

...journal will help a Mentee track progress, adjust expectations, and record milestones in reaching goals. The...that I try to exercise every morning, but the temptation to skip the gym is strong. There are a few women...with regular accountability checks. Focus on implementation of your goals and respect the time your Mentor...

...Now with the DAP array, it is possible to use the state-of-art base editor, prime editor, or any CRISPR-...CRISPR-based gene editors, for correcting mutations or installing functional genes to study and potentially...).   Fig. 2: Comparison of previous representative dual-gRNA architectures with DAP array ...

... do with them. In some cases, there might be a mutation that disrupts the function of YFG. You could compare... compare this mutant fly to one lacking the mutation in the same genetic background. In other cases, YFG... knock down gene expression, rescue knock out mutations, and overexpress viral genes. Additionally, other...

...  The iodine-modifications also shift MG-2I’s excitation wavelength to 666 nm, which is within the near-infrared...possible to do things like in vivo imaging.   Excitation with NIR light also produces less non-specific... non-specific ROS when exposed to YFP and RFP excitation wavelengths, which suggests that it could be ...

...Manager Patent Lawyer Science Market Research Statistician   Attention to detail Patience, accuracy ...Computer and writing skills Writing a thesis or dissertation demonstrates that you have advanced writing ...including: Science Reporter Technical Writer Statistician Bioinformatician Science Writer Grant Writer...

...to overexpress endogenous RNAi pathways. These mutations however can interfere with other genetic pathways...enzymes that overcome both the speed and toxicity limitations of APEX2 and BioID. In the Ting Lab’s recent ...proteome contains a breadth of modular domains that facilitate protein-protein interactions and mediate biochemical...

...this one mutated methionine was not enough to prevent alternative initiation, so they mutated the methionines...the target site (the same sequence you’d like to mutate in the genome) and an out-of-frame H2B (histone...

...long sequences with reduced risks of unwanted mutations in mammalian cells. Long sequences traditionally...traditionally have higher risks of off-target mutations. These plasmids contain catalytically inactive dCas9 and...challenge due to multiple factors, including limitations of number of flourescent proteins that can be...

...Chromatin immunoprecipitation (ChIP) is an extremely useful technique that provides insight into protein...to counteract the effects of increased sample agitation; a shorter sonication time could be an opportunity...resources on Addgene’s blog Antibodies 101: Immunoprecipitation  Antibodies 101: Polyclonal Antibodies Antibodies...

...Cas12a for multiplexed gene perturbation The Penn State Protein Ladder Engineered miniature CRISPR-Cas system...2021. doi: 10.1038/s41587-020-0600-6. The Penn State Protein Ladder  by: Rachel Leeson This simple, inexpensive...expression and purification. Figure 3: The Penn State Ladder run on SDS-Page gels. A: individually expressed...

...megabase away, or looking at the histone methylation status at a double-strand break that needs repairing. ...start sharing your plasmids through Addgene, don’t hesitate to start the process! Addgene depositors who study...linked below are partially curated from the presentations and posters I saw at the 2018 Keystone Chromosome...

... efficient. Pro-Tip Make sure to reverse the orientation of the crRNA’s direct repeats when expressing...preventing packaging of the virus.  Reversing the orientation of the direct repeat protects the (+) stranded...cells, but notice how Zetsche et al reverses the orientation of the promoter driving expression of the crRNA...

...promoters, which can be switched from an OFF to an ON state, and how you might use these in your research. When...negative control. Positive inducible In the OFF state, the promoter is inactive because the activator ...transcription.     Negative inducible In the OFF state, the promoter is inactive because a bound repressor...

...to neuroscience prior to this conference was a rotation in Qiao Zhou’s lab in graduate school where I ...neuroscience and you don’t have a background in statistics and programming, you’d be wise to start working...and brain monitors. Walking around the poster presentation area, I honed in on projects using biological...

...there is a classification system, CasID, to help facilitate direct comparison of different enzymes. CasPEDIA... their sequence (NGG, etc.) as well as their orientation relative to the gRNA (5’ or 3’). In some cases...would be helpful to know for viral packaging limitations. Maybe you want to read literature on the less...

...than indirect ones and can be used in highly quantitative assays. On the other hand, they are not as sensitive...stability Limited protein size range Tris-acetate 40–500 kDa Tris-tricine 150 V, 1–3 hours ...detection. Film also needs to be digitized for quantitative work — and with the advent of online lab notebooks...high-abundance single protein controls in semi-quantitative immunoblotting. Journal of Neuroscience Methods...

.... While certain cell types, such as principal excitatory cells and glia, have been successfully targeted...researcher’s locus of interest. NHEJ- or HDR-induced mutations in ATP1A1 can render cells resistant to the small...improves editing efficiency. Importantly, the point mutations created by Agudelo et al. prevent ouabain binding...DNA molecular weight markers The Tan lab at Penn State - set out to “rule” Molecular Biology. Under the...

...altering gut microbiome members in their native habitat (Ronda et al., 2019). They called their method ...the addition of standards, the assay is semi-quantitative and can approximate mRNA concentration within...infection, dysbiosis, and antibiotic treatment. To facilitate these studies, Pamela Silver’s lab developed ...

...assay for a native (folded) protein, such as immunoprecipitation, the epitope may not be accessible for binding... down in a variety of ways. First, review the citations. An antibody that has been cited thousands of ...antibody to that of the anti-tag antibody; and immunoprecipitation-mass spectrometry strategies that isolate...

...vector with half the size of the ssAAV genome has a mutation in the terminal resolution site (TRS) to form ...genome with wild-type ITRs at the both ends and mutated ITR at the center of symmetry. After uncoating ..."Development and optimization of a real-time quantitative PCR-based method for the titration of AAV-2 ...

...to start an open science nonprofit that would facilitate the sharing of plasmids between scientists. The... r/labrats, Reddit.  Part of that work meant facilitating the Material Transfer Agreement process, which... millionth item, and had a cumulative 120,000 citations of individual items in our repository, a tribute...

... pathway of interest, but there can be a lot of static since other signaling networks can also be non-....” Dronpa’s color thus indicates MEK1’s current state (Green when off, dark when on). Figure 1: Photoswitchable...turn off psRaf1). After this, the phosphorylation status of MEK1/2 was tracked at 5 minute intervals via...

...complicating the interpretation. Because of this, these methods only give a qualitative view of dimerization...molecules based on size is ultracentrifugation. Sedimentation equilibrium analytical ultracentrifugation yields...

... control the abundance of proteins in cells. Homeostatic regulation of protein abundance is essential ...Alternatively, fluorescent protein tags can be used to facilitate the visualization of specific proteins in cells...proteins in situ. Now FUNCAT-PLA provides both quantitative and spatio-temporal information about the turnover...

...for compliance. However, 10 days prior to the implementation date, our data indicated that, while 69% of...the lapsed mandate (or are being compelled at the state level, in the case of some public institutions) ...continuing to reach out to institutions with a statement indicating that we encourage them to keep raising...

...plasmid are the backbone, inserted gene/functional mutations, antibiotic resistance, restriction sites used...most sequence assembly errors occur), deletions, mutations, in-frame protein fusions, and multiple cloning...cases, we deal with multiple inserts or internal mutations that require more than two sequencing reactions...

...A professional coach will provide an initial consultation meeting or call for free.  Take advantage of...affordable for you. There is also a group The Dissertation Coach based in Illinois. A few of the coaches...in this group have scientific backgrounds. For a stated purpose of transitioning a scientist from academia...

...conditions (individually versus in groups), health status, diet, cage enrichment, stress level, origin (vendor...of channel protein, they can trigger neuronal excitation or inhibition upon light (or drug) application...situations such as learning and memory or emotional states, for example anxiety or depression. In upcoming...

...which is then implanted into a female animal for gestation. Nucleases that induce double-stranded DNA breaks...which is then implanted into a female mouse for gestation. All three can introduce multiple base pair deletions...deletions, but CRISPR/Cas9 can also introduce point mutations. While using targeted nucleases to generate an...

...Depositing labs often provide insert sequences or annotated Genbank files that are useful for more complicated...genes with many modifications. We look for point mutations, truncations, and insertions that could compromise...compromise function. When we do find mutations, we check to see if they affect the translated amino acid. ...

...fidelity. NEBridge GetSet Need a set of overhangs, stat? GetSet can do that for you, complete with predicted... °C cycling 4-base Bsal-HFv2® 37 °C Static 4-base Bsal-HFv2, 1x NEBridge Ligase MM ...They first compared 10-piece linear (the native state of the T7 genome) and circular assemblies. While...

...with BioRender.com. Add silent mutations near point mutations to create 3-base (or longer) tracts...’s all our tips for today! Each tip includes a citation to the paper it was drawn from. If we’ve piqued...

...the majority of the lncRNA locus, scientists can mutate the transcription start site, splice sites, exons...function (Hazan and Bester 2021; Zibitt et al. 2021). Mutating splice sites is particularly effective as it can... Transcription start site (TSS) deletion. (B) Mutations of splice sites. (C) Removal of an exon or a large...

...respectively. Chromogenic detection produces colored precipitates that permanently stain the membrane, making .... Cover the membrane in stripping solution and agitate for 5–30 minutes at room temperature. The incubation.... Cover the membrane in stripping solution and agitate for 30–45 minutes at 50 °C. Wash the membrane for...

...useful for neuronal tracing, it has two practical limitations. First, these high levels of viral replication...an enveloped virus. In general, viral envelopes dictate infection of target cells through their interactions...evolution of inputs onto new neurons in the adult dentate gyrus and olfactory bulb. Proc Natl Acad Sci U ...

...creativity and expertise of the group and yet never hesitated to reach out to the greater research community...portions of the Zika virus genome with Addgene to facilitate rapid sharing of these tools with the Zika virus...and the School of Molecular Sciences at Arizona State University. His group carries out research in synthetic...

... if you want to knock out a gene, a frameshift mutation introduced anywhere within the early coding region... hand, if you are trying to knock-in a patient mutation or need to make a precise amino acid change, there...away from a desired site does not have the same devastating impact on efficiency as 10-15 bps away does. ...

...review analyzing and explaining the antibody crisis states that up to 50% of all commercially available antibodies... technology, it is important to show through qualitative data that they are a long-term solution to reproducibility... above) and literature suggest, providing an expectation and comparison on the antibody signal’s location...