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...for Neurobiology has been working on genetically encoded indicators of calcium and other small molecules...of interest,” Griesbeck said. Because they are chemical compounds, they have to be applied or injected...lymphocytes, too, making them a versatile tool for application in both neuroscience and immunology. Don’t be...imaging for beginners Griesbeck says his calcium indicators can be used in mouse, Drosophila, C. elegans,...give it a shot. “Beginners sometimes think it’s complicated, but actually it is very good,” he said. “It ...his team is now applying it to improve upon an indicator they developed and published in 2010 for visualizing...tools useful, including his zinc sensor and his genetically encoded magnesium sensor, the first of its kind...

...humanistic and philosophical implications. As an example, a group at Caltech used an optical fiber together...handle on some of these mysteries. Another application is clinical; can we find ways to treat patients? Over...Optogenetics is a toolset that lets you turn the electrical activity of neurons on or off using pulses of...photosynthetic or photosensory molecules that come from basically every branch on the tree of life. Our most recent...implant already. If we can use light to more specifically activate a set of neurons, maybe we could treat...Addgene Alerts box. References: Independent Optical Excitation of Distinct Neural Populations. Nathan...

... regions of homology at their ends, which are typically created by PCR. Then, the fragments are incubated...neighboring fragments can be created via PCR amplification with primers that contain the appropriate homologous... tools that help you design primers for PCR amplification of fragments to incorporate such regions of ...competent cells. The success rate of this reaction is typically fairly high, so there is usually no need to screen...assembly meets CRISPR Gibson can be adapted to more complicated cloning schemes, such as those where the vector...CRISPR technology and is described in a recent publication by the Lockey lab (Wang, et al. 2015). In this...the bacterial chromosome (up to 100 kb) were specifically cut out via CRISPR and then assembled into a...

...improve our shipment processes. After reading a publication describing how short term storage on dry ice ...aqueous samples might be affected by dry ice, and specifically how dry ice can affect virus from Addgene. ...medium, which is buffered and contains the pH indicator phenol red. We froze samples in a -80°C freezer...closed dry ice storage container for 48 hours (to replicate how our viruses are shipped), where they would...exposed to CO2/dry ice. All samples were tested in duplicate. What we found Not all tubes (or rather, not ... the samples were at the control pH of 7.4 as indicated by color (data not shown). What we did next: Venting... at -80°C. We then thawed the tubes after the indicated incubation periods, and measured the pH. We found...

...Talley Lambert, a Research Associate at Harvard Medical School. The need for a community fluorescent protein...one of the most indispensable tools in modern biological research.  Any microscopist will tell you that...non-trivial, however, as FPs are tremendously complicated entities with a large range of characteristics...maturation, oligomerization), many of which are dramatically affected by environmental conditions (such as...decision remains spread across literature in publications that introduce these tools. Years ago, Kurt...incorporate FPbase data in their own projects and applications, a REST API allows programmatic retrieval of...Talley Lambert is a Research Associate at Harvard Medical School. He manages the Cell Biology Microscopy ...

...population (typically cells or small organisms) and then assaying for a functional or phenotypical outcome... daunting task of finding new factors in your biological system of interest, the so-called “fishing expedition...that both attempt to identify new players in a biological process. Players can be proteins, genes, enzymes...obligatory growth advantage – that is, you are not specifically looking at cells that can survive. Instead, ..., the entirety of the small molecule realm is typically not feasible to test in any given screening experiment...selection process. Non-functional traits will be automatically eliminated, unlike in screens. Selections begin...the answer that much faster? In reality, many biological questions are not conducive to selections and...

...comparable in efficacy to dCas12a systems in both gene activation and base editing applications.  Figure...stability in cells, and use it in a variety of applications. This set of new anti-FLAG frankebodies includes...to FLAG-tag H2B for nuclear localization. (c) Applications of anti-FLAG-FB-GFP labeling various targets... and anti-HA frankenbodies have a variety of applications, including live-cell imaging, single-molecule...members or students new to protein expression and purification. Figure 3: The Penn State Ladder run ...challenges for in vivo delivery and cell engineering applications. CasMINI, a new miniature CRISPR-Cas system ...: Overview of CasMINI for genome engineering applications. Image from Xiaoshu, et. al. 2021.   Created...

...proof-of-concept for pre-clinical and clinical applications of dCasRx. The identification of Type VI Cas13d ...RspCas13d. RspWYL1 also increased EsCas13d activity, indicating that WYL domain-containing proteins may be broader...even when guides were tiled across a target RNA, indicating that this enzyme does not cleave at a predictable...efficiency; where shRNA treatment produced 500-900 significant off-targets, CasRx displayed zero. Unlike Cas9...target essentially any RNA in a cell. Since catalytically dead dCasRx maintains its RNA-binding properties...enhancers. After AAV-mediated delivery to iPS-derived cortical neurons, dCasRx-mediated exon skipping improved...

...transcription, or DNA repair, or replication, or any number of CRISPR applications and thought “OK, but how does...pages containing lists of plasmids from the indicated publications. You can request all of these plasmids ...to think about DNA in this context, but also specifically study it. They might be researching enhancer...--directly or indirectly--many other areas of biological research. If you’re looking for resources that...you study how chromatin effects your favorite biological phenomenon, there’s a reasonable good chance ...below pull up lists of plasmids containing the indicated gene, and you can subscribe to these pages to ...RANbodies) as versatile, small, sensitive immunohistochemical reagents. Yamagata M, Sanes JR Proc Natl ...

...their idea is. While communication styles in academia and industry vary drastically, he reassures that ... As a biomedical engineer and scientist, I like to envision that my research will have a direct impact...competitions. After much learning, the focus of the application was changed, but Sample6 still leverages the ...fit for this set of technologies, effectively communicating the advantages embodied, and driving the enterprise...He explained that entrepreneurs must clearly communicate their idea at various levels of complexity and...biggest challenge during this time was learning to communicate effectively to non-scientific audiences. "There...for the company; this will help avoid future complications and potential conflicts that waste money and...