... on the Addgene blog Viral Vectors 101: Types of Viruses Viral Vector Elements Tips for Preventing... contact with than GFP. Similarly, if the viral vector carries an shRNA to a gene essential for cellular...cellular function, this would also be a higher risk vector. While it is unlikely that you, or anyone else ... you can receive appropriate treatment and/or monitoring. Virus-specific concerns   In nature, some viruses..., some adenovirus strains are known to cause respiratory diseases in humans, earning this virus a BSL-...

...Viral Vectors 101: Viral Vector Elements Viral Vectors 101: An Introduction to AAV Viral Vectors 101:...heterologous envelope or a post-transcriptional regulatory element can be used for either type of retrovirus...clinical settings. AAV is also a cool tool in the laboratory! It is ideal for whole animal administration,...population. Some adenoviruses are known to cause respiratory disease across species, as well as cancer in ...strains have been engineered to induce a lower inflammatory response within hosts. Relative to the other... Galla M, Baum C, Schambach A. Gammaretroviral vectors: biology, technology and application. Viruses. ...

...(scAAV) vector. Full-length ssAAV vector genome of both polarities are rescued from the vector plasmid...about Viral Vector Elements Resources on Addgene.org Read Our AAV Guide Find AAV Vectors Browse All ...make AAV ideal for human therapies and in vivo laboratory experiments ranging from transient gene expression...a type 2 ITR and a type 8 serotype. Almost all vectors contain type 2 ITRs, which comes from the AAV2 ...capsid (outer protein shell) used to package an rAAV vector; these capsids allow the virus to infect (or not...multiple small genes, you can design single rAAV vectors with multiple genes packaged in them and use elements...or second strand synthesis. In contrast, a scAAV vector with half the size of the ssAAV genome has a mutation...

...Browse Our Viral Vector Pages Learn About Viral Vector Biosafety Deposit Your Viral Vectors ...We offer a variety of viral vectors, viral services and even a Viral Vectors eBook to get you started. ... terrains. They are, in fact, a choice delivery vector from basic science research all the way to clinical... long-term, and even inducibly depending on the vector and virus. Viral CRISPR-Cas9 tools have been...interest, turning expression off permanently. Viral vectors can also be used to express proteins. Viral expression...of interest, and often a selectable marker. This vector can express your construct in target cells transiently...mechanisms require a specific modification of the viral vector for your gene of interest – an shRNA sequence specific...

...reversion of this mutation by an adenine base editor would restore antibiotic resistance. To find such a protein...not require any additional inhibitor protein like UGI in CBE. Base editors for the plant genome These ...2: Plant base editor platforms and their molecular components. Adenine base editors for plant We developed... developed plant adenine base editor (ABE) vectors to install A>G or T>C mutations in the plant genome...smaller vectors suitable for transient assays using protoplast transformation. Cytosine base editors for ...plant base editors. Plant CBE and ABE with expanded PAM compatibility All of the base editors mentioned...require other base editor platforms. Hua et al. constructed a number of plant base editors replacing the SpCas9...

...outside factors that need to be considered as well. In this post, we’ll touch on antibody storage, buffer....  Storage   Once you get your exciting new antibody, the second thing you’ll want to do is store it ...what temperature to store your antibodies at, but it also matters what they’re stored in - their buffer....the way, you can put your antibody in short term storage (think days to weeks) in the 4°C. If you’ll only...primarily used in Western blots and ELISAs, cannot be stored in sodium azide at all, as it inhibits HRP. In ...excitation by a laser, which is then read by a detector panel in the machine. Fluorophores are light sensitive...sensitive, so antibodies conjugated to them need to be stored either in a dark, opaque vial or wrapped in aluminum...

...ready-to-use viral vectors in the Addgene repository  Name Serotype Category Depositor  Notes pAAV-CAG-emiRFP670...retro) Looking for more viral vectors? Browse our in-stock viral vectors or consider our AAV Packaged ...Addgene’s viral vector services allow scientists to conduct experiments faster, skipping the preparation...production, purification, and titering. Our newest viral vector service, AAV Packaged on Request  has seen a fantastic...serotype, and a dTomato under the control of the E6 regulatory element, which targets it to VIP cortical interneurons...Hub can help, with over 100 user-submitted viral vector reports. And don't forget to use the link below...below to keep up with the latest in Addgene's viral vector services and resources!   This blog post was written...

...the first base transversion editor The story of base transversion editors starts with researchers in the...Cytosine Base Editor Converts C → T; the first type of base editor invented. ABE Adenine Base Editor Converts...a glycosylase base editor (GBE). GBE Glycosylase Base Editor A base editor that relies on DNA glycosylation...The first base editors revolutionized CRISPR gene editing. Cytosine base editors (CBEs) and adenine base...transversion editors. Red arrows indicate a conversion directly catalyzed by the base editor. Black arrows... depends on cellular factors. Multiple labs tried to identify beneficial factors to include in even better...DNA repair proteins to the base editor, they added the pioneer factor SOX2, which is capable of binding...

...ready-to-use viral vectors in the Addgene repository  Name Serotype Category Depositor  Notes pAAV.CAGFLEX... new preps available in the Addgene viral vector repository with a nice cup of hot chocolate is absolutely...retrograde Looking for more viral vectors? Browse our in-stock viral vectors or consider our AAV Packaged ...Hub can help, with over 100 user-submitted viral vector reports. And don't forget to use the link below...below to keep up with the latest in Addgene's viral vector services and resources!   This blog post was written...Addgene's Data Hub What is a Virus (and a Viral Vector)?  AAV Variables that Matter...

... Lucky Thirteen: Guest Contributors of 2023 8 Great Depositor Research Stories Interested in contributing...Kits We are very grateful for each and every contributor to the blog. Thank you! More resources on the...

...confirms the previously suggested inhibitory mechanism of locomotor sensitization and might open new ways...studies using viral vectors in behavioral neuroscience. With the ability of viral vectors to fine tune gene...all of our viral vectors blog posts Find tips for getting started with viral vectors for behavioral neuroscience...is activating, inhibiting, or modulating. Viral vectors, in contrast, are considerably more versatile and...behavioral tests, but now we’ll focus on how viral vectors have changed the scope and power of three commonly...tests To study and quantify locomotion, scientists monitor an animal’s movement in an open field box or a ...particles expressing an activating chemogentic receptor (hM3Dq) into a subset of neurons within the LC...

...Patriarchi, T. (2023). Sensitive multicolor indicators for monitoring norepinephrine in vivo. Nature Methods...Neuromodulators like dopamine and norepinephrine have important functions in the brain but have been ...developing and depositing two new norepinephrine indicators: nLightG and nLightR (Kagiampaki et al., 2023...White insets indicate surface expression of the indicators over white dashed lines. Scale bars, 10 μm (HEK293T...nLight sensors are based on alpha-1a adrenergic receptor; nLightG contains circularly permuted green fluorescent...trialed in two-photon in vivo experiments. nLight indicators are more sensitive to and selective for norepinephrine...This is important because alpha2-AR can provide inhibitory feedback in response to norepinephrine release...

... by sharing all the incredible guest posts and stories featured in our blog in 2023. Some of these were...Information DatabaseResearcher: Amos BairochViral Vectors 101: Systemic CapsidsResearchers: Cynthia Arokiaraj...

...recall, are the outer shell of an AAV vector, which determine the vector’s tropism, including its ability to...payloads. Since most systemic vectors are primarily derived from AAV9, the vectors have to be administered ...Hub and the CLOVER repository of published systemic AAVs to find commonly used vector cargo designs and... CNS (broad):  enhanced coverage for inhibitory versus excitatory neurons Mice, rats Yes (LY6A) ...AAV.CAP-B10 CNS: balanced coverage of inhibitory and excitatory neurons Mice, marmosets Unknown ...on the Addgene blog Viral Vectors 101: AAV Variables That Matter Viral Vectors 101: An Introduction to ...). Targeting AAV vectors to the central nervous system by engineering capsid–receptor interactions that...

...blog  Viral Vectors 101: Biosensors Viral Vectors 101: Viral Applications Viral Vectors 101: An Introduction... an enzyme co-factor, a crosslinking agent, a signaling ion, and an allosteric modulator. Because of its...jGCaMP7 and jGCaMP8.   Viral vectors So, what do viral vectors have to do with all of these cool ...also already packaged into viral vectors and ready to go. Pro tip: Vectors with ready-to-use AAV preparations... a calcium sensor Genetically encoded calcium indicators (GECIs) are fluorescent proteins linked to calcium...troponin C). Their fluorescent readouts are used to monitor calcium concentrations and transients in living...living cells and organisms. Unlike chemical indicators, these DNA constructs can be delivered to intact tissues...

...plasmids use Rho-independent terminators, which include naturally occurring terminators, such as T7 and rrnB,...engineered terminators come close (>95%). For most purposes, however, any common terminator will suffice...suffice. Many commercial expression vectors use double terminators to reduce unwanted translation of downstream...require binding of termination factors. Although both are termination factor dependent, Polymerases I and...Posttranscriptional Regulatory Element Enhances Expression of Transgenes  Delivered by Retroviral Vectors. Journal...of yeast terminators of varying strength. A discussion of the effects of various terminators in the context...termination and polyadenylation? The role of the terminator, a sequence-based element, is to define the end...

...Science History Rap Battle A great example of science story telling following the unfortunate story of Rosalind...and their importance in understanding biological history. 4. Please Don't Kill My Hive Beautifully filmed...with us. Tom McFadden is a YouTuber and science educator looking for creative ways to implement the next...

...When our Director of Biology, Lianna Swanson, suggested that I might be able to attend the 10 Years of...Oct4, Sox2, Klf4, and cMyc (the so called OSKM factors). As the Yamanaka lab's primary Addgene contact... forward to seeing how the sharing of his OSKM factors have affected the stem cell community – a community...the first clinical trial with iPSCs with his collaborator Takahashi in 2014 – just 8 years after the OSKM...control process alone takes nearly a year. Addgene depositor Juan Carlos Izpsua Belmonte said it took the joint...effort of five post-docs to implant human kidney progenitors into a pig. In stark contrast to recent genome...the scientists I've already mentioned, Addgene depositors Marius Wernig, Kristin Baldwin, Kathrin Plath...

... download the PEI calculator for AAV packaging Use the PEI transfection calculator for AAV packaging ...corresponding column in the calculator spreadsheet: We hope that this calculator will make it easier to plan...for AAV packaging, considering using this PEI Calculator. AAV packaging typically requires transfecting...right, you need to do a few calculations. This calculator can do the math for you and it’s simple to make...whole experiment And here’s the equation the calculator uses to give you the μl needed of each plasmid...experiments. Let us know what you think about the calculator in the comments section below. References 1....Production of Recombinant Adeno‐Associated Viral Vectors for In Vitro and In Vivo Use." Current Protocols...

... maintain high standards for both our depositors and requestors.  Requesting Plasmids available for Packaged...through a distributor?  Yes! Packaged on Request service will be available through our distributor partners...excited to announce that we are expanding our viral vector service to include a Packaged on Request option...AAV composed of an AAV plasmid in the Addgene repository and their choice of five different serotypes....requesting and ordering a Packaged on Request viral vector prep.    Excited? So are we! This expansion...ordering high-quality materials from the Addgene repository. Read on to learn more.  What will be available...available?  Over 3000 AAV plasmids in the Addgene repository will be available for Packaged on Request service...