We narrowed to 798 results for: OMP;
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TypeBlog PostPublishedMarch 11, 2025, 1:15 p.m.... strategy uses new combinations of PE protein components (Figure 1), an altered epegRNA delivered with...protein-coupled receptors (GPCRs) are critical components of many physiological pathways and represent ...et al., 2024). Each plasmid expresses all the components of the biosensor in optimal proportions from ...
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The AAVantages of AAV in CRISPR Screens
TypeBlog PostPublishedFeb. 4, 2025, 2:15 p.m....screens have gotten larger, easier, and more comprehensive thanks to the consistent development and improvement...vectors is how the cargo — in this case, the CRISPR components — are expressed. Unlike lentivirus, cargo delivered... away from the comfort of Cas9, and opt for a completely different Cas effector, like Cas12a (Cpf1). Even... -
Production of Virus in Insect Versus Mammalian Cells
TypeBlog PostPublishedNov. 5, 2024, 8:32 p.m....plants, mammals, and insects. In this post, we will compare two of the most widely used systems, mammalian ... from dedicated adenoviral production labs or companies. Production of both AAV and lentivirus requires...10430340260355347. Vaughn, J. L., Goodwin, R. H., Tompkins, G. J., & McCawley, P. (1977). The establishment... -
PRIDICT: Predicting Efficiencies of Prime Editing Guide RNAs
TypeBlog PostPublishedJune 25, 2024, 1:15 p.m....RNA (pegRNA). The pegRNA consists of a target-complementary spacer, a scaffold sequence, and an extension...accounting for some of the inherent inaccuracies of computational prediction models. In addition, we provide options...Switzerland), where he developed a strong passion for computational biology. His expertise includes applying machine... -
Polymerase Chain Reaction Overview and Applications
TypeBlog PostPublishedAug. 10, 2021, 1:15 p.m.... fluorescent signal throughout the reaction is compared to a standard curve of amplified DNA of a known...The cycle in which the unknown DNA is detected compared to the standard curve can be used to determine... to note however, that multiplex PCR is more complicated to develop and is often less sensitive than PCRs... -
No Llamas Required - Synthetic Nanobodies Against Membrane Proteins
TypeBlog PostPublishedJune 18, 2020, 1:15 p.m....proteins on the cell surface. Figure 1: Comparison of common antibody, HCab, and nanobody. For more...starting library size (up to 1012 members) in comparison to other display systems using phage and yeast...the end of the mRNA molecule, forming a ribosome complex consisting of the translated protein (sybody), ... -
Plasmids 101: Optimizing Plasmid Yields
TypeBlog PostPublishedMay 26, 2016, 2:30 p.m....the cell lysis process. To ensure that lysis is complete, use a reagent like Qiagen’s LyseBlue, which uses... uses color to show you if lysis is incomplete. Protein expression strains are not good for cloning Bacterial...the material used for inoculation. To further complicate matters, plasmid copy numbers are often ambiguous... -
Sharing Your Lab Protocols: Using Apps to Save Time & Track Your Experiments
TypeBlog PostPublishedSept. 23, 2014, 3:05 p.m....service free of charge to scientists by allowing companies to pay publish their catalogs on the site. Like...of checking off each step as you painstakingly complete your experiment – one small victory in a long ...manage scientific data: Electronic lab notebooks compared with Google Docs and wikis - by Rory Macneil on... -
Which Fluorescent Protein Should I Use?
TypeBlog PostPublishedMay 20, 2014, 2:06 p.m....also is also called Bimolecular Fluorescence Complementation (BiFC). 8 points to keep in mind when choosing...divided by 1000. In many cases the brightness is compared to that of EGFP which is set as 1. Some proteins... BD bioscience. ilovegfp – a site with very comprehensive data sheets on many FP variants Plasmids 101... -
Deep Dive: Fixing and Permeabilizing for Immunofluorescence
TypeBlog PostPublishedAug. 30, 2022, 1:15 p.m....your samples, the relationships between cellular components, and the accessibility of your target epitope...work by dehydrating and precipitating cellular components. This method of fixation is good for epitopes...away your target (for example, some cytoskeletal components) and you want to fix and permeabilize in one ... -
Capturing a Moment with Marc Zimmer’s “The State of Science”
TypeBlog PostPublishedJuly 30, 2020, 1:15 p.m....No examination of the state of science would be complete without the inclusion of some interesting case...Prashers will find it increasingly difficult to compete (for funding, etc.) with that produced by the confident...the U.S. environment, and a decline in the competitiveness of U.S. science and technology.” This last ... -
Isolating Genomic Regions of Interest with the CRISPR System
TypeBlog PostPublishedMay 30, 2019, 12:44 p.m....engineered DNA-binding molecule such as the CRISPR complex is expressed in cells to be analyzed, the Fujii...another "in vitro" form. In this form, the CRISPR complex, consisting of a recombinant dCas9 protein and ... a genomic locus through a specific gRNA-dCas9 complex. When combined with next-generation sequencing,... -
Better Dyeing Through Chemistry & Small Molecule Fluorophores
TypeBlog PostPublishedSept. 8, 2016, 2:30 p.m....cells can decrease the number of fluorophores, compromising the photon budget. Likewise, the switch from...labeling chemistry easier and more functional in complex biological environments such as live cells and ...brightness of the resulting conjugate, and the complexity of the system. A particularly desirable property... -
Fluorescent Proteins 101: Green Fluorescent Protein (GFP)
TypeBlog PostPublishedMay 15, 2014, 3:33 p.m....importance of the entire GFP protein, which is almost completely required to maintain fluorescent activity; very...may not apply. Table 1: The specific mutations comprising common fluorophores Fluorescent Protein Mutations...chromophore to form with an indole rather than phenol component (cyan derivatives) Y66H Blue-shifts the wavelength... -
Twenty Years of Sharing: Expanding Accessibility
TypeBlog PostPublishedNov. 21, 2024, 10:47 p.m....both Addgene’s founding and our growth into the company we are today. As part of our 20th anniversary celebration...pages allowed researchers to easily access and compare their options for tools such as empty backbones...Addgene YouTube channel to add a strong visual component to our educational resources. From 2013–2023, ... -
Viral Vectors 101: Preparing Pooled Libraries
TypeBlog PostPublishedJuly 13, 2023, 1:15 p.m.... amplify well and others don’t. The size and composition of your library can drastically impact what conditions...suffice…and the answer is no. Due to the size and complexity of pooled libraries, NGS is the best way to validate... plasmids didn’t amplify after your screen is completed! Producing Your Lentiviral Library Once you've... -
Viral Vectors 101: Pseudotyping
TypeBlog PostPublishedApril 20, 2021, 2:30 p.m....are differentially inactivated by nonspecific complement mechanisms in serum. Sometimes this is due to...sugars end up in the envelope and are targets for complement-based killing by anti-alphaGal antibodies. The... as described above and is inactivated by the complement system in serum (DePolo et al., 2000). Other ... -
Sonic Hedgehog? Sleeping Beauty? Learn About the Genes Behind Addgene’s Conference Room Names
TypeBlog PostPublishedApril 2, 2019, 1:44 p.m....1997). We have a lot of plasmids that contain components of the SB transposon system including those from...but think again. Spaghetti squash is actually a component of the fly actomyosin cytoskeleton that regulates...regulates cellular contraction. This network is composed of actin and myosin which interact with each other... -
CRISPR-mediated Plant Base Editors
TypeBlog PostPublishedJan. 3, 2019, 1:35 p.m....C) installation by base editors. Pathways that compete with the desired outcome are not pictured. ...Plant base editor platforms and their molecular components. Adenine base editors for plant We developed...editors. Plant CBE and ABE with expanded PAM compatibility All of the base editors mentioned above are... -
Fluorescent Proteins 101: Aptamer Fluorophores
TypeBlog PostPublishedApril 11, 2017, 2:30 p.m....laser cleavage and an RNA aptamer that bound the compound malachite green (MG) to create a non-protein based... 4-hydroxybenzylidene imidazolinone (HBI)-like compound allowing it to fluoresce, the Jaffrey lab asked...production have also made aptamers an important component of high throughput assays with microarrays and...