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... “the photon budget”: each sample has a limited number of fluorophores and each fluorophore can emit a... a limited number of photons before bleaching. The amount of information one can extract from a biological...irreversibly with a small substrate ligand motif attached to a fluorophore (Figure 1b). Engineered ligases...phosphopantetheinyltransferase) – These enzymes catalyze the covalent attachment of a fluorophore ligand to a peptide tag (Figure...bioorthogonal chemical reactions (i.e., click chemistry) to attach a fluorophore at the specific site of incorporation... the speed and selectivity of the fluorophore attachment, the brightness of the resulting conjugate, and...budget gets a bit thin, small-molecule labeling approaches can provide a fresh infusion of photons for your...

...significantly from lot-to-lot, and have to be re-validated each time a new lot is purchased. Monoclonal antibodies... these mixtures are defined by the manufacturer, each rAb in a mixture can be individually validated. ‌...primary antibody with the new reporter. Finally, each new conjugate will have to be tested to ensure it...therefore cannot compare Bis and Tris gels or blots to each other. Once you know your gel type, you’ll need ...amount of optimization that can be done.  Note that each type of transfer requires different equipment. Wet... long exposure times (up to thirty minutes!) to reach the limit of detection. Film also needs to be digitized...require no consumables, produce digital images, reach their limit of detection quickly (~1 minute), and...

... spectrophotometry. Achieving the highest-quality DNA requires taking care at each step, but some purification... use one of two common approaches — columns or magnetic beads. Both approaches involve binding the plasmid.... DNA quantity is fairly self explanatory and achieved by performing different sized preps, such as miniprep... the DNA from the substrate. In a column-based approach, the substrate is a silica matrix fixed in a column...usually by centrifugation or vacuum. In a bead-based approach, you mix specially coated magnetic beads into ...instruction manual will help explain the rationale behind each step and provide troubleshooting advice. In these...Cytiva Column Mini $$ No No Not mentioned No Macherey-Nagel Beads, column, plate Mini, midi, maxi, mega...

...then characterizes the sequence and abundance of each particular indel.   For a complete guide to ICE ... to gather details on the issues associated with each sample. Successfully analyzed samples will display...Sample - The unique label name that you provided for each sample. Guide Target - This is the user-defined ... name. You can perform more in-depth analyses on each sample by clicking on the sample name or on its ...analysis will open up a new window with three tabs.  Each of the three tabs - Contributions, Indel Distribution...entire edited population of genomes. Hovering over each bar of the indel plot shows the size of the insertion...base calls from the .ab1 file are also shown above each trace. The horizontal black underlined region represents...

...investigations. Genetic resources for zebrafish A common approach to unravel the gene networks that drive biology... regions is also possible using an alternative approach that exploits the bacteriophage integrase phiC31...useful, I’ll outline two recent lineage tracing approaches that led to important insights in developmental...embryogenesis live. The origins, divisions, and movements of each of the thousands of cells in the developing zebrafish...tracked using microscopy and advanced computational approaches (Keller et al., 2008). This microscopy-based ... been mapped using single cell RNA sequencing approaches (Harland, 2018). Several different methods have...to manipulation of brain activity: optogenetic approaches can be used to determine the consequences of ...

... viral vectors, and high-throughput screening approaches. Here, we’ll highlight these recent advancements...copies of the p65-HSF1 transcriptional activator to each genome-bound dCas9 (see Figure 1a for the transgenic... a larger packaging capacity than AAV. Such an approach was described recently by the Day Lab, who developed...different untranslated or coding regions. Typically, each gene isoform has a distinct transcriptional start...least, more straightforward than generating cDNA for each gene isoform individually. To highlight this advantage...protein. To demonstrate the specificity that can be achieved with CRISPRa, the Day lab singled out two Bdnf... developed a subgenome-scale CRISPRa screening approach in embryonic stem (ES) cells to determine which...

... thanks for our guest blogger, Gairik Sachdeva! Gairik Sachdeva is a Ph.D. in Bioengineering and works...This post was contributed by guest blogger Gairik Sachdeva. Healthcare consulting is a fast-paced field, ...challenges, quickly breaking them up into smaller achievable tasks, and then executing on them in a timely...creative solutions to emerge. They enjoy the fact that each new challenge will require knowledge of new topics...situations, and personalities. Teams striving to achieve a lot of great output in a short amount of time... and to help manage that, most consulting firms coach and counsel employees on the different personality...core of the suite of benefits a given therapeutic approach brings to patients, doctors, and insurance providers...

...acoustic reporter genes’ on our blog. Creative approaches to presenting the microbial world After learning...the lab, I was excited to learn about creative approaches to visualize bacteria in an educational setting...setting. The Symposium on ‘Creative Approaches to Presenting the Microbial World’ showcased complex connections...connections and ideas in various visualized approaches from hand-drawn comics (Dr. Sanja Saftic) to educational...makes scientific topics both interesting and approachable!   The grand finale of visual impressions was... creative ways to do science communication and outreach - if you'd like to learn more about Science communication... Susanna Bachle...

...cytometers. These fluidic machines handle biological samples and are cleaned between each use. You wouldn’t throw...New ideas and approaches are encouraged in science. It isn’t surprising that new ideas are also popping...lab lives. Read on to learn about some creative approaches to lab sustainability, and find ways to further... throw away your FACS machine after a single use. So how about washing and reusing pipette tips in a high-throughput...tips. This is part of a cultural change in how we approach waste that needs to be supported at all levels...industrial and residential markets. Rethinking our approach to lab waste is something we all need to do. Remember...

...’s very sad because it’s years of work,” Sacher says. Sacher hopes that as Phage Directory expands, it...When Jessica Sacher, a microbiologist from the University of Alberta, saw that scientists were using ...recognize a specific part on the bacterium making each phage is very specific. Some infect only one or ...really needs it, but then it might to be too late,” Sacher says. As the labs in the directory step forward...Since the inception of Phage Directory ~1 year ago, Sacher and Zheng found that they could expand their role...information and potential for successful phage therapy, Sacher and Zheng also saw the need to archive phage reagents...

...and flexibility to the CRISPR editing world. The approach, originally published in Nature, is a “search-... sequence location The prime editor extends the reach of CRISPR genome editing, as it can edit near to...prime editing typically needs to be optimized for each application, and the efficacy varies widely — it...versatile, but it requires careful optimization to achieve the best efficiency. The type of edit, genomic ...strand (Chen et al., 2021). The team applied this approach to both the PE2 and PE3 systems, naming the new...optimized enzyme can be used with any of the PE2-5 approaches, sometimes referred to as PE2max, PE3max, etc...improved efficiency, although both enzymes still approach or exceed PEmax editing efficiencies for short...

...   Many thanks to our guest blogger, Joachim Goedhart! Joachim Goedhart is an assistant professor at ...You can follow him on twitter: @joachimgoedhart.   References 1. Zacharias, David A., et al. "Partitioning...This post was contributed by guest blogger Joachim Goedart, an assistant professor at the Section of ...generate the strictly monomeric EGFP variant, mEGFP (Zacharias et al., 2002). GFP needs oxygen Chromophore formation...protein module that can report on location. This approach enables the study of proteins in cells, but not...tolerated in my fusion It is standard practice to attach the GFP to the N- or C-terminus of another protein...

...live across the country or around the world from each other are collaborating on projects. When I was ...experiments can get done and data analyzed between each meeting, but short enough that everyone stays on...meet. You and your collaborators should then hold each other accountable to these expectations once they...checking in about them at your recurring meetings and reaching out if any milestones are missed. Spend time in...think about having collaborators spend time with each other in person. One possibility is to do a lab ...lab exchange, where researchers spent time in each other’s labs. This is an opportunity for the researchers...researchers involved to learn techniques from each other, access specialized equipment, or ensure that techniques...

...intellectual journey. Practical approaches One approach to achieve this goal could involve participating...moments of release and mental freedom. Practical approaches Engaging in mindful meditation, taking field ...or visiting museums can be excellent methods to detach from the constant stream of thoughts related to...predefined path, opening doors to novel ideas and approaches. Moreover, the ability to embrace serendipity....” This quote encourages us to contemplate our approach to life and how our viewpoints influence our encounters...

...Addgene’s pooled libraries are a little different: each is a collection of plasmids that share the same ...Samantha Morris lab use a combinatorial barcoding approach to observe clonal dynamics and cell lineage. Variations...sgRNAs, but they may or may not include CRISPR machinery (which can be supplied separately). Libraries ...repressor to create a reversible effect. These approaches may also be less toxic than knockout screens....CRISPRi) libraries for both mouse and human use. Each of these libraries accounts for chromatin, position...such as a yeast or bacteriophage species. This approach is useful for screening for binding properties...systematically explore variations in the spike protein, teaching us more about viral evolution and antibody binding...

...experiment. Nucleic acid based machines Recombinase-based State Machines Enable Order-dependent Logic in... cell. These so-called recombinase-based state machines could potentially be used to report upon and/or...post to learn more about recombinase-based state machines and how they function. Adapting Toehold Switches...Cressy from the labs of Dr. Elke Mühlberger and Dr. Rachel Fearns at Boston University School of Medicine,... describes R-bodies, “force generating protein machines that can extend and retract over many microns ...you can better design your donor DNA template to achieve more efficient genome editing - all influenced ...

...more progress you will make in reaching them. Of course, you won’t reach all the goals you set, but the...bring more than their knowledge and teaching to help a Mentee reach goals. One of the most important contributions...relationships, so that you can reap rewards in the form of reaching career development goals. Check out Joanne's Reddit... adjust expectations, and record milestones in reaching goals. The more time and thought you put into ...being a Mentor: Learn other perspectives Develop coaching skills Encourage your creative thinking Enhance...

...with greater spatial and temporal control than is achieved by traditional pharmacologic methods. A number...covalently linked molecules (i.e. photoswitches) attached near the binding pocket of an engineered receptor...PORTLs use a similar concept, except the ligand is attached to a protein binding partner or nanobody that ...pathways or particular targets with light. This is achieved by coupling endogenous signaling molecules with...the activation curves (Marshel et al., 2019) for each tool, and you may have to test and optimize the ...sources used to prevent activation of both tools with each light source used.   Channel and activation kinetics...it is important to understand the details of how each tool performs and the consequences of off-target...

... of each talk - time for free interaction and brainstorming. This could be achieved by asking each presenter...leadership, and inappropriate tools or writing approaches can lead to frustration, delay of publication... someone could raise their hands or signal the approach of a brain break, where everyone stands up, disappears...general chatter will be allowed with a different host each time that moderates conversations. This can help...social distancing. The take home message is the approaches/tools we have to foster creative collaboration...

... the topic at hand. Invite one “ambassador” from each affected team to be the representative in the meeting...standing team meetings, provide agenda sections for each person to add a bullet or two about what they are...many points as they like to the written agenda, but each only gets to address one point aloud. This keeps...separate section at the top of the agenda, and assign each one using group members’ initials. If appropriate...Consider whether you actually need a full hour to achieve the purpose of the meeting (see “defining the scope... and are able to provide more timely feedback on each other’s projects. For all-company meetings, monthly...still works best. Figure out what works for you for each of your meeting types (see above). We’ve provided...