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Showing: 81 - 100 of 774 results
  1. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

    Type
    Blog Post
    Published
    May 11, 2021, 1:15 p.m.
    ... the cytoplasm of dendrites, and only a small proportion were found on the plasma membrane (top panel ...been administered. Although we found a larger proportion on the membrane in mice neurons, most of them...different tag fused to the hM4Di might improve the transport of this DREADD to the plasma membrane. The haemagglutinin...results indicate that the tag protein may have an important influence on the expression of the transgene of.... In our studies, mCherry interfered with the transport to the membrane of the DREADDs. In studies where... (Kimple et al., 2013) could help improve the transport of protein of interest the membrane.   ... use of the HA tag significantly improves the transport of hM4Di to the plasma membrane.   Our studies...
  2. Antibodies 101: Fab Fragments

    Type
    Blog Post
    Published
    Sept. 5, 2024, 1:15 p.m.
    ...from another portion. For example, Fab fragments are molecules composed of just the Fab portion of the antibody...between the target and reporter. They have fewer non-specific binding opportunities due to the lack of an...region is the “tail” of the antibody and comprises portions of the constant regions of the two heavy chains...   Figure 1: IgG antibody structure with important features labeled. V = Variable domain. L = Light...used in vivo.     Of course, the lack of an Fc portion means that most of the common anti-IgG secondary...it either needs to be directly conjugated to a reporter or you need a light-chain specific conjugated ...fairly easy to find these in a Fab fragment format. Reporter-conjugated anti-IgG Fab fragments make good secondaries...
  3. Deep Dive: qPCR

    Type
    Blog Post
    Published
    Sept. 29, 2022, 1:15 p.m.
    ...step. Scorpion chemistry in particular has been reported to work well in the Lightcycler while being relatively...Yes Agarose gel Sunrise primers   Low Reporter and quencher on hairpin structure included in ... temperature should be 60-65°C For qPCR, the important primer variable is the annealing temperature, ...much as sixfold variation in expression levels reported (Biassoni, 2014), so you’ll want to ensure that...tissue types, appropriate reference genes (and supporting data) are often documented in the literature....help you in your execution:  Accuracy is not as important as precision for relative quantification. A consistent...configurations can help you identify pipetting or evaporation errors. And if time allows, you can fit in a ...
  4. Adapting Toehold Switches to Detect Zika Virus

    Type
    Blog Post
    Published
    Aug. 30, 2016, 2:30 p.m.
    ...mild symptoms. This changed in January with the report of an outbreak of the virus in Brazil that was ..., and North America. Diagnostics will play an important role in helping to monitor and slow this spread...-ready format when the Zika virus outbreak was reported, and we felt that, given the critical need for...such a short timescale. Our article ultimately reported the development of a rapid design and prototyping...toehold switch-based RNA sensors, our approach uses portions of the pathogen’s genome as unique barcodes to... sensors and constructs encoding corresponding portions of the Zika virus genome with Addgene to facilitate...Find the Zika Sensor Constructs at Addgene As we report, we have embedded this next generation of toehold...
  5. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ... versions of this reporter to target the K9 (pcDNA3-K9 histone methylation reporter) and K27 (pcDNA3-K27...The K9 reporter uses the HP1 chromodomain to recognise lysine 9 methylation, while the K27 reporter uses... methylation in living cells. Essentially this reporter construct consists of one substrate (the histone-derived...-K27 histone methylation reporter) positions on histone H3, which are known to be involved in repression...methylation of these sites was controlled, the reporter consistently showed significantly different FRET...states. Thus, this system is a reliable tool in reporting methylation status of these sites. This new technology...Alice Y. Ting. "Genetically encoded fluorescent reporters of histone methylation in living cells." Journal...
  6. 7 Simple Strategies to Resolve Conflicts with Difficult Supervisors

    Type
    Blog Post
    Published
    Jan. 21, 2015, 1:30 p.m.
    ...supervisor might expect weekly or biweekly progress reports. However, a hands-off busy supervisor might get...update, and whether he or she would like a written report or to meet in person.   Regardless of your supervisor...your own, reach out for help so you can get the support you need. 2) Prepare an agenda for every meeting... This will make it easy for your supervisor to support you. 3) Explain the problem and leave your emotions...solutions that will meet both of your needs. 6) Put important agreements in writing One of the most frequent...from your supervisor. Whenever possible, discuss important issues in person or over the telephone instead... or unresponsive clam), you will probably need support from your colleagues or other supervisors to complete...
  7. Transferable Skills Guide: Identifying Your Transferable Skills

    Type
    Blog Post
    Published
    Jan. 11, 2018, 3:29 p.m.
    ...skills. Why are transferable skills so important? It is important to identify which transferable skills...it just as much in my current role as Customer Support and Operations Manager at Addgene. In this role...belt from your last job. You knock the technical portion of the interview out of the park. It’s clear that... work, and be prepared for new and exciting opportunities. Here are some strategies for identifying your...learning experience. If your first reaction to an opportunity is to say “no, that’s not in my wheelhouse”, ... This came naturally to you. How is this new opportunity much different? Might you already have leadership...work, consider challenging yourself, take the opportunity, and discover if this builds upon a skill you...
  8. CRISPR 101: Ribonucleoprotein (RNP) Delivery

    Type
    Blog Post
    Published
    Sept. 6, 2018, 12:02 p.m.
    ...delivery of RNPs is electroporation (A in the figure above), which generates pores in the cell membrane...and gRNA expression       Plasmid DNA may be incorporated into the genome     Off-target effects can ...through a process known as CRISPR-EZ (CRISPR RNP Electroporation of Zygotes) (Chen et al. 2016). For CRISPR ...CRISPR experiments that involve HDR, electroporation can be combined with cell-type specific reagents in a ...a technique known as nucleofection, which forms pores in the nuclear membrane, allowing for entry of a... account with these types of experiments. One important consideration is that the Cas9-gRNA RNP will be...it is likely that the use of RNPs will play an important role in its continued advancement. Andrew Hempstead...
  9. A Career in Grants: How To Become a Grant Professional

    Type
    Blog Post
    Published
    Aug. 20, 2015, 2:30 p.m.
    ...management, we track grant opportunity deadlines, and we ensure that grant reports are submitted and project...for an organization or a program and a funding opportunity coincided, and they stepped up to apply for a...organization’s grant readiness, identify grant opportunities, secure grant awards, and manage grant projects...with significant character limits for the written portion of the grant application. They have increased their... funds.  Grant professionals identify grant opportunities with the highest likelihood of funding and develop...do I become a grant professional? Employment opportunities for those with expertise in grant writing, grant... process, including grant readiness, funding opportunity research, application writing and development...
  10. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

    Type
    Blog Post
    Published
    March 21, 2024, 1:15 p.m.
    ...protein function and cellular components: It's important to assess how dye-conjugation affects protein ... interpretation of experimental results. It's important to consider how dyes can influence receptor conformation...efficacy of these ligands can be affected by the incorporation of fluorophores, as seen in studies involving...wavelengths for green, red, and far-red dyes is important for intracellular fluorescence live imaging ​​(...from cells under certain conditions, which is an important consideration for assay design (Breen et al., ..., 2016). When selecting dyes, it's important to test them under experimental conditions. Common issues...superior brightness, photostability, and most importantly, a photoswitching ability. This photoswitching...
  11. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    Published
    May 8, 2018, 1 p.m.
    ...the scientific support team at Synthego. Her work centers around educating and supporting novice to expert-level...was contributed by Jessica Roginsky, Scientific Support Lead at Synthego. Article source: Step-by-Step ...this problem. This tool was initially created to support the CRISPR analysis needs of Synthego’s scientists...Knockout score (KO-score) which represents the proportion of cells that have either a frameshift or 21+...other features and functionalities, please email support@synthego.com. Overview of ICE editing analysis ...correlation coefficient (r) is also computed and reported.  The higher the R2 value, the more confident ...be in the ICE score. KO Score - Represents the proportion of cells that have either a frameshift or 21+...
  12. Adeno-associated Viruses (AAVs) for Genome Editing

    Type
    Blog Post
    Published
    March 27, 2018, 1:32 p.m.
    ...without a nuclease Although the mechanism of incorporation is not well understood, researchers have been...Russell and Hirata from the University of Washington reported a surprising finding - when delivered via AAV ...with G418-selected clones. However, there are important disadvantages to the AAV-based approach that must...researcher to fill it with the repair template. Bok and Porteus 2017 recently showed that by delivering CRISPR ...of the two AAVs. Using this technique, Bok and Porteus deliver a repair template that would take up ~6.5...~6.5 kB if delivered in a single AAV. They report roughly 40% repair efficiency in the K562 leukemia cell...AAV vector cures haemophilia B mice." Scientific Reports 7.1 (2017): 4159. PubMed PMID: 28646206. PubMed...
  13. 10 Steps to a Perfect Science Talk

    Type
    Blog Post
    Published
    Aug. 23, 2016, 2:30 p.m.
    ...can be. Seek out opportunities to practice and over time you can master this important science skill. .... The happy byproduct might just be a career opportunity. The focus of this article will be talks for...good article at NatureJobs: Interviews: The All-Important Job Talk. 1. Watch other people give great talks...in presenting data. Finally, let me take this opportunity to recommend all the science and career talks...you rather hear it from your peers than a less supportive audience? 7. Hone Your slides Use big images ... time to prepare (and it does take time). For important talks, ask your peer mentors to check your slides...clarity in a big room.  Finally, don’t pass up opportunities to show cool visuals, but don’t overdo the effects...
  14. Evolution of Lab Techniques

    Type
    Blog Post
    Published
    June 21, 2016, 2:30 p.m.
    ...although they are reported to have high error rates (10). It is projected that nanopore-based sequencing... similar experimental questions (see below). Importantly, although their role has changed, restriction...lengths because extension is terminated upon the incorporation of a ddNTP. Researchers perform four different...activity as fluorescently labeled nucleotides are incorporated, a method called pyrosequencing. The drive for...sequencing world, one up and coming innovation is nanopore-based DNA sequencing which reads the nucleotides...nucleotides of a DNA strand as it slips through a tiny pore by measuring differences in ion flow caused by the...nucleotides (8). Compared to older technologies nanopore-based DNA sequencing machines are relatively small...
  15. Thoughts on the Future of Research 2015 Boston Symposium

    Type
    Blog Post
    Published
    Nov. 25, 2015, 4 p.m.
    ...discussed during the symposium will prove incredibly important to the stability of the biological research enterprise...doctoral degree (or equivalent) and is engaged in a temporary and defined period of mentored advanced training...Stephan’s Talk (All slides can be found here). Importantly, the panel offered some great solutions to these...(the current median postdoc starting salary as reported by Paula Stephan is $40,000) Increase Knowledge...part in boosting awareness of various career opportunities through our career, networking, and management...included:  Write Often Whether you take on opportunities to do some blogging, write reviews, or write...and inclusion The final and possibly the most important panel of the symposium was on diversity in academic...
  16. Arabidopsis in Education: How the Arabidopsis Biological Resource Center Brings Plant Science to Life

    Type
    Blog Post
    Published
    April 12, 2018, 1:02 p.m.
    ...year. Introducing Arabidopsis Arabidopsis is an important model system for research and is used by scientists... to say that most people do not recognize its importance or perhaps even know it exists. Couple that with...from the American Society of Plant Biologists and support from the National Science Foundation, ABRC’s outreach...provide in-depth, ready-to-teach lab protocols and supporting materials such as instructional videos and datasheets...classroom is that staff from the ABRC are here to support you! From questions about growing conditions, to...e-mail and phone to answer questions and provide support. Growing capacity - ABRC outreach today Over the...than create and share resources, we seek out opportunities to engage people in science learning. Whether...
  17. Hot Plasmids September 2018 - Optogenetics, RNA Localization, Fluorescent Protein, and Base-editing Tools

    Type
    Blog Post
    Published
    Sept. 18, 2018, 1:33 p.m.
    ...ACE) in real-time. The reporter constitutively expresses eGFP to indicate reporter abundance, and mCherry...and N177F mutations). Its excitation maximum is reported as 603 nm, while the emission maximum is 675 nm... ACE system: A versatile in vivo fluorescent reporter for rapid quantification of base-editing and Cas9...editing tools, the Reuben Harris lab has deposited a reporter plasmid that allows for rapid fluorescence-based... out a frame-shift mutation within the mCherry reporter. Quantification of editing efficiencies simply...containing rat APOBEC1. Finally, they show that the ACE reporter can also quantify Cas9 cleavage, thus exhibiting...editing activities. Click here to find the ACE reporter plasmid! Martin et al., Nucleic Acids Research...
  18. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    Published
    Sept. 10, 2024, 1:15 p.m.
    ... monoclonal antibodies. It is also important to seek out supportive data on candidate antibodies from ...t always indicate the presence of supportive data. To be supportive, the data must show that the antigen...and/or intracellular labeling (or both). It is important to test for the protocol you intend to use in ...Although the expected location of the target is an important factor in deciding which protocol is likely to...protein, show the same pattern of labeling, this is supportive of their specificity for the protein. A challenge...is the most usual level of evidence supplied to support the suitability of an antibody for its target. ...open science ecosystem. It has received in-kind support to produce this data from commercial antibody manufacturers...
  19. 25 Work From Home Tips for Scientists

    Type
    Blog Post
    Published
    March 19, 2020, 1:15 p.m.
    ...classes and participating in these is a great way to support your favorite local exercise spot or find something...calling this “physical distancing” since it’s important to stay virtually connected with the people in...PhysicalDistancing. Social interactions and #social support are even more necessary during these times of stress... stress due to #COVIDー19. Receive and provide support while being safe. @GHP_HarvardChan — Shekhar Saxena...testing for COVID-19. You can also give back by supporting local businesses (ex: purchasing a gift card ...career exploration site Inventing Heron has a radio reporter challenge, and code.org has coding tutorials for.... Think about reproducibility best practices Support your future experiments and other researchers by...
  20. GCE4All: Making Genetic Code Expansion Accessible

    Type
    Blog Post
    Published
    June 15, 2023, 1:15 p.m.
    ...describing a technique that allowed for intentional incorporation of an unnatural amino acid in translation (Noren...natural translation machinery; these are often incorporated into the cells via plasmid. Third, a second ...containing the chosen codon that will result in the incorporation of the non-canonical amino acid at the site ...integrated into the cell’s genome, instead of incorporation via plasmid or media. Theoretically, if you ...will produce a protein with a site specifically incorporated ncAA, ready for you do to any number of experiments... They provide resources, knowledge, and most importantly, validated protocols (using readily available... (1989). A General Method for Site-specific Incorporation of Unnatural Amino Acids into Proteins. Science...
Showing: 81 - 100 of 774 results