...mutagenesis of Plasmids. A) Generation of mutagenized plasmids. PCR primers (green) amplify the plasmid template...with the nuclease-resistant nicked plasmid (the PCR product). Plasmids are isolated from the resulting colonies...the final circular plasmid product pictured here. B) Screening of recovered plasmids for the mutation of...Smaller plasmids (~3 kb) are generally more efficiently amplified than larger constructs, but plasmids as ...DpnI) to eliminate the parent plasmid from the PCR products, the plasmid template should be isolated from...have taken up the mutagenized plasmid. Note that any residual parental plasmid (usually from incomplete DpnI...additional restriction site into your plasmid, then, when the plasmid is digested with the appropriate restriction...

...cells to retain plasmids - if a cell does not inherit plasmid due to improper plasmid partitioning, it...unstabilized plasmids were retained in less than 10% of cells while plasmids containing the plasmid addiction...ensure that plasmids are passed down through generations (Figure 1). These so called “plasmid addiction ...only survive if they retain the plasmid. Since their discovery, plasmid addiction systems have been used...found that if a mini-F plasmid carried a specific 700 bp segment of DNA, the plasmid was propagated better...selection in one plasmid, they were able to create an efficient cloning tool. The plasmid pKSCTMF contains...restriction-modification systems onto plasmids allowed cell populations to retain more of these plasmids as compared to those...

...these CRISPR plasmids (and libraries)? We wanted to know, so we classified CRISPR plasmids containing a... (A) Cumulative CRISPR plasmids shipped by year. (B) Cumulative CRISPR plasmids deposited with Addgene...,000 CRISPR plasmids in our repository, and we have shared almost 300,000 CRISPR plasmids and 12,000 CRISPR...CRISPR plasmids requested each year by year of deposit (Figure 3), we saw that once CRISPR plasmids become... CRISPR plasmids seem to never truly go out of style. Instead, an almost even mix of plasmids (by age)...Total CRISPR plasmids deposited by country; square size is proportional to number of plasmids deposited ...Total CRISPR plasmids requested by country; square size is proportional to the number of plasmids requested...

... Read our Plasmids 101 blog series Find other plasmid protocols and tips Browse our plasmid cloning blog...alkaline lysis plasmid miniprep Starting material: 2 mL bacterial culture Product: plasmid DNA This kit-...kit-free plasmid miniprep protocol from Addgene follows a similar workflow as a column-based plasmid extraction...the DNA is ready for use! Plasmid purification and DNA gel extraction with glass syringe filters Starting... or agarose gel slices Product: plasmids or DNA fragments The plasmid purification and DNA gel extraction...columns, it’s bound to glass syringe filters. Normally DNA does not bind silica or glass, but the addition ...coaxes it into sticking to the hydrophobic glass filter. Each glass filter can capture up to 150 ug of DNA...

...curating plasmid collections. Addgene's "How to cite this plasmid" section Anytime you use a plasmid from ...variety of plasmids in the repository. And last, but certainly not least, we often feature new plasmid technologies...process, we explain how to cite plasmids from Addgene right on our plasmid pages and provide a citation ...comparing two plasmids, we recommend reviewing the cited papers to determine whether the plasmid has been ...collection or if you think a particular plasmid or type of plasmid is missing from our collections pages...spotlight some of the plasmids that have come through our doors in our “Hot Plasmids” section. We’ve also... added the Plasmid of the Day feature to our home page - each day we showcase a new plasmid that you might...

...within the plasmid backbone to generate R-mAbs of different subclasses, including subclasses that were ...important collection.  Creating the Plasmids To begin constructing the plasmids for expression of mAbs, the Trimmer...expression plasmids were DNA sequenced to determine the VH and VL sequence. These plasmids have been deposited...scientific community with the plasmid sequences available from each plasmid webpage. Importantly, the methods...different subclasses, but there are also secondary antibodies that are specific to each subclass. Approximately...mouse mAbs are IgG1 subclass (Manning et al. 2012), which limits the use of subclass specific secondary...original hybridoma. By using subclass specific secondary antibodies and subclassed switched R-mAbs, multiple...

...associated plasmids with Addgene. Since then, Addgene has filled over 6,500 requests for these plasmids. While...without plasmids at Addgene To find out whether scientific articles associated with Addgene plasmid deposits...those containing plasmids that the authors deposited with Addgene and those without plasmids deposited with...2,596 of which had plasmids deposited with Addgene. Articles with Addgene plasmids get more citations ...with plasmids deposited at Addgene – typically about four times as many as papers without plasmids deposited...Papers without Addgene Plasmids in Journal (E) Percent of Papers with Addgene Plasmids in Journal (F) Weight...more interestingly, could we tell if depositing a plasmid with Addgene causes a paper to get cited more? ...

... Requested Plasmid in 2015 Find Hot Plasmid Technologies Write about Your Favorite Plasmid Technology ... indicates that a plasmid has been requested 20+ times   A red flame means a plasmid has been requested...answering plasmid requests can be a time-consuming chore for labs that have popular plasmids but lack ...All plasmids deposited at Addgene enhance scientific sharing worldwide but a select few are particularly...particularly special. Over 1000 of our 60,000+ deposited plasmids have been requested more than 100 times each, ...to sharing epitomized by the creators of these plasmids with the first annual Blue Flame Awards. What'...scientists around the world choose to share their plasmids through our repository since we know biological...

...this case, plasmid copy number is the input and gene expression is the output. The input, plasmid copy number...to decouple gene expression and plasmid number. In a suite of plasmids modified from pSC101 with copy ...of all types of plasmids, the stabilized promoters were also tested in different plasmid backbones that...stationary phase, the number of plasmids per cell increases 4-5 fold (for pUC plasmids) or ~2 fold (for p15a, ...RepA is a plasmid replication initiator protein, they could alter copy number of the plasmid by altering...genome or a plasmid. Thus, a stabilized promoter can allow a system to be moved from a plasmid to the genome...special collections page Download the Plasmid 101 eBook See all plasmids deposited by the Voigt lab ...

... beginning. In most classrooms, the laboratory experience is focused on classical embryology techniques...experiments in planarians with their recent plasmid deposit. These plasmids enable two main types of experiments... cloned into plasmids to investigate for each of these planarian species. These plasmids all have a PR-T4...insert the cDNA into the desired plasmid backbone. The Sánchez lab plasmids allow students and new labs to...feedback etc. please write to cuttingclass@stowers.org and if you make new plasmids for investigating different...Resources at Addgene.org Find plasmids from the Sánchez lab Find plasmids for other developmental models...of specific gene expression. The 49 deposited plasmids enable students to study gene expression and functions...

...determine the ideal excitation). Lasers can be purchased through Laserglow, which caters to optogenetics ...users and adjusts the lasers appropriately (tuned for optogenetics). These lasers are relatively cheap ... run you about $2-3,000/laser. However, an important caveat is that one laser can stimulate only a single...apparatus and thus individual laser stimulation is essential. In terms of the laser stimulation itself, the ...control output of several lasers simultaneously, can be used to set the laser output without manual manipulation...patch cable to connect to the laser and rotate 360° without a loss of laser power. More recently, wirelessly-controlled...neuroscience validation experiments we discussed last week are only half of the battle when using optogentics...

... Can I use my favorite plasmid with this protocol? Maybe. Not all plasmids will work for the one-pot...strands of the plasmid will be nicked during the first BbvCI digest and the whole plasmid will be degraded...those in the plasmid. Again, if they are in the opposite direction, both strands of the plasmid will be nicked...map of your plasmid. If the sites are in opposite directions, you just need to use a plasmid with BbvCI...Mutagenesis to Mutate Your Plasmids Resources on Addgene.org Find Plasmids from the Whitehead Lab Use.... This technique relies on the generation of a plasmid library that expresses all desired variants of ... a selective pressure winnows the pool down to plasmids expressing variants with optimal function. High-throughput...

...lentiviral plasmids Addgene's most popular retroviral plasmids Addgene's collection of AAV plasmids Addgene...split across several plasmids (often three), for safety purposes. The primary plasmid with the delivered...often a gene) is called the transfer plasmid while the other plasmids with packaging or replication components...of adenovirus plasmids Resources on the Addgene blog Parts of the AAV packaging plasmid Overview of Lentiviral...For safety and production reasons, multiple plasmids with many components are used to package lab grown...can be intimidating at first to look at so many plasmid maps and protocols! In reality, there are many ...components are called helper plasmids. Below, we’ll breakdown the vector components first by virus and then...

...beneficial for plasmid clearance. It is more convenient to update the spacer(20nt) on pEcgRNA plasmid as only.... pCutamp cures the plasmids by targeting the ampR promoter in all three plasmids. pCutamp is then removed... 13 plasmids with 14 rounds of transformation in 30 days. Figure 2: (A) MUCICAT plasmids for ...Originally published Apr 13, 2021 and last updated Aug 12, 2021. This post was contributed by guest bloggers... original pCas/pTargetF system consists of one plasmid that expresses the S. pyogenes Cas9, a temperature-sensitive...the pTargetF construct and then introduce both plasmids into the cell. The edit in the chromosome can ...the pMB1 replicon, resulting in cutting of the plasmid. At this point, subsequent introductions of pTargetF...

... target plasmid and pX330-sgRNA plasmid (Mashiko et al. 2013). The pCAG-EGxxFP target plasmid contains...pCAG-EGXXFP plasmid along with the individual gRNAs in their PX330 plasmids (or similar plasmids for gRNA... (c) The pCAG-EGxxFP target plasmid was co-transfected with pX330 plasmids containing sgRNA sequences ... system floating around, and many pre-designed plasmids containing these variants ready for purchase. ...multi-cloning site (MCS) between EGFP fragments. The pX330 plasmid contains humanized Cas9 expression cassette and...HEK293T cells. The fluorescence intensity was classified into four groups (4; brighter than control, 3... you can insert this region into a pCAG-EGXXFP plasmid using standard cloning techniques (The XX indicates...

... multiple plasmids. Second generation packaging systems use 3 plasmids; an envelope plasmid that usually...encodes VSV-G, a packaging plasmid containing structural genes and a transfer plasmid carrying the transfer...Rev gene from the packaging plasmid and incorporating it into a fourth plasmid. In addition, the promoter...and packaging plasmids in order to obtain the best titers. Requiring an additional plasmid for transfection... 5-layer flask will require some initial optimization; cell number, media volume, and plasmid concentrations...By dividing the viral elements across multiple plasmids, the risk of recombination and consequently, the...extra level of safety, they also require a fourth plasmid. The requirement for additional DNA can impact ...

...separate envelope and packaging plasmids as well as transfer plasmids. This concept ensures safe handling...gamma-retroviral packaging plasmids are not interchangeable. General envelope plasmids, such as VSV-G, may be...Learn more about CRISPR plasmids for transcriptional inhibition. Retroviral Plasmid Kit Retroviral Barcoding...expressing new shRNA sequences pLKO (Plasmid #10878) This plasmid has been used by The RNAi Consortium... genes and transgene expression across several plasmids. The most commonly used viral vector systems are...popular packaging and gamma-retroviral envelope plasmids here. Lentiviral vectors are very versatile tools...guide. Popular packaging and lentiviral envelope plasmids are listed here. Please note that both lentiviruses...

...Addgene, plasmids, and depositing (all while our US counterparts are still sleeping). Plasmid sharing ...more than 75,000 plasmids to more than 1,500 different institutions in Europe. In the last four years alone...have deposited their plasmids into the Addgene repository. More than 4,500 plasmids have already been deposited...in research, I developed several new plasmids, including: plasmids to study the dimerization of HLA B27... Years of Plasmid Sharing: Interested in more statistics from Addgene's 10 years of plasmid sharing? ...Check out our Top 10 Plasmid Technologies blog post Or look at our "10 Years of Plasmid Sharing" Infographic...emailed. And Addgene has been there to answer your plasmid questions. But until now, you’ve always had to ...

...modifications, researchers used blunt tools like histone deacetylases, but targeted epigenetic modification was impossible... constructs, which fused a TALEN to the Tet1 demethylase catalytic domain, could mediate demethylation...additionally fused a TAL effector to LSD1 histone demethylase to demethylate enhancer regions (Mendenhall et...light-regulated histone methyltransferases and deacetylases. CRISPR and epigenetics As with many TALEN-based...activation. Created with BioRender.com. Tet1 demethylase Ronggui Hu’s lab has created pdCas9-Tet1-CD for...cytosine demethylation in mammalian cells. This plasmid is used with pcDNA3.1-MS2-Tet1-CD to decrease methylation...Tet1CD, is available from Rudolf Jaenisch’s lab in plasmid form or as ready-to-use lentivirus. Figure...

... consists of a Ti plasmid, into which the GOI is inserted, and a Ti "helper" plasmid, which contains Vir...for creating plant expression plasmids, including plant CRISPR plasmids from the Yiping Qi lab and the...Originally published Oct 11, 2016 and last updated Dec 22, 2020 by Benoit Giquel. CRISPR has taken the...plant-specific modifications to commonly used CRISPR plasmids are necessary to use the CRISPR system in plant...et al., 2013). Addgene carries Cas9-containing plasmids for knockout, activation and repression of target...expression of both Cas9 and the gRNA off of the same plasmid. Delivering CRISPR components to plant cells Once...the application of this approach is limited to protoplast cells (plant cells whose cell wall has been removed...