We narrowed to 939 results for: OMP
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TypeBlog Post...silencing complexes (RISCs), which detect dsRNA in the cytoplasm and use it as a guide to complementary RNA ...RNA sequence. Once a compatible sequence is found (typically RNA that the RNAi is designed against), RISC...and will dissociate when gene transcription is complete. However, transcription of thousands of genes ...
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Antibodies 101: Affinity Reagents
TypeBlog Post...camelid antibodies to antibody fragments to tools completely unrelated to antibodies. Why use an alternative...entirely new affinity reagent. Fig. 1: A comparison of an antibody (left) to several alternative ...through engineering instead of cleavage. They are comprised of the variable heavy and light chain regions,...immunogenic, but they have lower affinity and longevity compared to antibodies, along with a higher likelihood ... -
Antibodies 101: Polyclonal Antibodies
TypeBlog Post... the bulk purification steps keep the cost low compared to other antibody formats. This low barrier to...is no more of that exact polyclonal antibody composition available. If you’re going to need a large quantity...antibodies produce a higher level of background noise compared to monoclonal or recombinant antibodies. This ...polyclonal antibodies for your experiment and how they compare to other antibody options out there, you’re set... -
Plasmids 101: Cre-lox
TypeBlog Post...recombination events. The system consists of two components derived from the P1 bacteriophage: the Cre recombinase...recognition site. The P1 bacteriophage uses these components as part of its natural viral life-cycle, and ...and researchers have adapted the components for use in genome manipulation. Cre recombinase, originally...other sites of the same type, but are not cross-compatible. Using different lox site variants allows Cre... -
Viral Vectors 101: Chemogenetics
TypeBlog Post... is important to fully characterize the compound, or compounds, you choose to ensure reliable results ...In order to understand the complex wiring of the brain and the underpinnings of neurological disease,...pharmacodynamic actions of clozapine-N-oxide, clozapine, and compound 21 in DREADD-based chemogenetics in mice. Scientific... -
Rabies and Neuronal Tracing
TypeBlog Post...optogenetic or chemogenetic receptors) enables complex control of specifically defined neuronal populations...how newly generated neurons integrate into the complex pre-existing circuit of the brain. Another study...anatomical regions of the brain receive inputs and compute outputs. In general, RABV monosynaptic tracing ...circuitry, and continue to contribute answers to the complex questions of how the brain operates. References... -
Antibodies 101: Stripping and Reprobing Western Blots
TypeBlog Post...’ll share the basic composition of these solutions below. Alternatively, companies including ThermoFisher... tool to identify a protein of interest in a complicated solution like cell lysate. But they can be a ...lost each time you strip a blot, you should not compare the strength of bands from different rounds of ... -
Adapting Toehold Switches to Detect Zika Virus
TypeBlog Post...up clear tasks for each member of the team to accomplish so that many elements of the project were able...involved definitely contributed to our ability to complete the project on such a short timescale. Our article...extensive infrastructure of molecular and electronic companion technologies that has transformed the assay’s ...of Zika Virus Using Programmable Biomolecular Components." Cell (2016). PubMed PMID: 27160350. Find Plasmids... -
Overcoming the Challenges of Lentiviral Production
TypeBlog Post... formation of replication competent lentivirus (RCL). Replication competence can arise from recombination...drive high levels of expression of certain viral components; according the manufacturer these changes result...downstream. When assessing lentiviral titer, don't compare apples to oranges After choosing a packaging system... -
Synthetic promoter AAVs for cell-type specific expression in retinal cells
TypeBlog Post...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..., Szabó, A., Gross-Scherf, B., Morikawa, R.K., Rompani, S.B., Hantz, P., Szikra, T., Esposti, F., Cowan... -
Fluorescent Proteins 101: Fluorescent Protein Timers
TypeBlog Post...better at producing a compound of interest, thus allowing them to optimize the compound production process...fluorescent proteins have usurped old methods or complemented them in ways that make them much easier. A special...Although it is possible to make a timer system composed of two separate FPs (one that matures quickly ... -
Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells
TypeBlog Post...protein capsid encapsulating the genome is majorly composed of three proteins that can be easily modified ...Delivering gRNA and Cas9 using adenoviral vectors As compared to other viral vectors, AdVs can provide a large...AdV-mediated transduction of gRNA:Cas9 ribonucleoprotein complexes into transformed and non-transformed cells yielded...vector delivery of RNA-guided CRISPR/Cas9 nuclease complexes induces targeted mutagenesis in a diverse array... -
Light Sheet Fluorescence Microscopy
TypeBlog Post... capture large field-of-views (6). For more comprehensive reviews on several other LSFM configurations...multiplying couple-charged device (EMCCD) or complementary metal-oxide semiconductor (CMOS) sensors, it...labeling in whole tissue (15). CLARITY is also compatible with LSFM, a method termed COLM (clarity-optimized...spatiotemporal control over labeling methods as compared to transgenic animals (17). These viral plasmids... -
Transgenic Organisms, Cas9 Gene Drives, and Appropriate Safeguards
TypeBlog Post...For example, Drosophila lines with compound autosomes are completely infertile when mated to wild fruit...with appropriate measures. Barriers should be a component of all gene drive confinement strategies, but ...: I. Cage Studies of Chromosome Replacement by Compound Autosomes in Drosophila melanogaster. Genetics... -
Protocol - How to Perform a Diagnostic Digest
TypeProtocol...that you have is the expected size, or that it is composed of a backbone and insert of expected sizes. This... -
Video Library
TypeProtocol...positions he has held in his career, his favorite company tradition, and Addgene's role in the scientific... -
Transferable Skills Guide: Identifying Your Transferable Skills
TypeBlog Post...this situation: You’ve spent hours scouring a company’s LinkedIn pages, given yourself the bathroom mirror...socks, persevered through a nerve wracking commute complete with a disabled train, and now you’re sitting ...the candidate has what it takes to thrive at the company and add value, not just “do the job”. When they...these responsibilities. If you are in charge of completing many meticulous protocols or tasks, you’ve probably... -
AAVs CREATed for Gene Delivery to the CNS and PNS
TypeBlog Post...gross comparison of AAV.PHP.eB and AAV.PHP.S to their parental vectors. To quantify this comparison, capsids....PHP.S had 1.5- to 2-fold higher GFP intensity compared to the strains they were derived from. They also...research. Visit Our AAV Guide Page for info on AAV components, common uses of AAV, and much more! Find ready-to-use... -
Course-Based Undergraduate Research Experiences (CUREs)
TypeBlog Post...his program. Initially, Provost made his labs completely open-ended, allowing every student to work on...Kowalski et al., 2016; Scott, 2021). In fact, completion of Provost’s CURE increased students’ confidence...them to near homogeneity using a 6XHis tag, and compared their specific activities by measuring NADH production...Poirier, V., Pellettieri, J. 2020. The exon junction complex is required for stem and progenitor cell maintenance... -
CRISPR 101: RNA Editing with Cas13
TypeBlog Post... an RNA editor The Zhang lab envisioned a two-component RNA editor: a Cas13 enzyme fused to an RNA adenosine...off-target editing. In one direct transcriptome-wide comparison, REPAIRv2 reduced off-target sites from the 18,385...edits by ~45% and off-target A-to-I edies by ~94% compared to RESCUE. Addressing the potential use of RESCUE... Abudayyeh, Omar O., et al. "C2c2 is a single-component programmable RNA-guided RNA-targeting CRISPR effector...