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We narrowed to 954 results for: COMP

Showing: 281 - 290 of 954 results
  1. Your Lentiviral Plasmid FAQs Answered

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    Blog Post
    ...of the vector components are HIV-based? A7: No single plasmid contains all the components necessary to ...The components are divided as follows: Transfer vectors contain minimal cis-acting HIV components: LTRs...decreasing the probability of creating replication-competent lentivirus (RCL) in your target cells.  Q4: How...targeted. Q6: Are transfer plasmids replication competent? What is SIN? A6: Most (if not all) Addgene transfer...LTRs, PPT, RRE, and psi packaging signal. Viral components typically total <1.5kb, which is rarely more ...are: 1) the potential generation of replication competent virus [usually HIV-1]; and 2) the potential for...
  2. Hot Plasmids - November 2023

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    Blog Post
    ...  Here's what you'll find in this post:  New compact, efficient prime editors A versatile and precise...tape Teaching an old antibody new tricks   New compact, efficient prime editors By Susanna Stroik The ....), while PE6c and PE6d were most efficient at complex edits, such as long or highly structured templates...Phage-assisted evolution and protein engineering yield compact, efficient prime editors. Cell, 186(18), 3983–4002...interchangeable set of fusogenic and targeting components to reprogram delivery vehicles like lentiviral...DIRECTED particles where the fusion and targeting components are interchangeable. Image from Strebinger et...the range of targetable cell types. DIRECTED is compatible with fusogens from different viral families and...
  3. Plasmids 101: Stringent Regulation of Replication

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    Blog Post
    ...the cell must have enough nutrients available to complete the entire round of replication. Initiation is...initiate replication. But pSC101 requires a third component: RepA, a protein encoded by pSC101 itself. RepA... are efficient for the host, as no additional components are necessary. Iterons are not the only tool ...Inc, also encoded by the ColIb-P9 plasmid, is complementary to part of the sequence forming this pseudoknot...restraining further replication.   Figure 3: Comparison of replication regulation mechanisms of stringently...replication. At high copy numbers, RepA proteins form complexes between iterons on different plasmids in a process...propagation by limiting their copy number and compensating for the additional metabolic cost imposed on...
  4. QC Sequencing Technologies at Addgene

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    Blog Post
    ...have the full picture of the puzzle, the QC team compares it to the plasmid information or depositor-provided...depositor-provided sequences to confirm the correct plasmid components. For more information on this process, see our...small sample sizes, small regions of interest, or complex sequences such as G-C rich areas, secondary structures... NGS technology, due to the high-throughput compatibility. However, there are some instances where we ...thousands or even millions of base pairs. Several companies have worked on this technology, but Oxford Nanopore...sequence an entire plasmid in one read. Runs can be completed in anywhere from under an hour to 72 hours, with...data output. This method is great for resolving complex and repetitive sequences, but can be costly, low-throughput...
  5. Antibiotic Resistance: An Old Solution but a New Problem

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    Blog Post
    ...intense amount of competition between microorganisms for available resources. This competition drives microbes...antibiotic compounds. In such a case, the microbe itself would be unharmed by the compound it produces...treat infections, we are treating microbes with compounds similar to those they have been battling for centuries...treatment regiment might wipe out bacteria that are completely susceptible to a drug while a full course of ...likely to develop over time. It isn’t feasible to completely eliminate the development of resistance; it’s...hygiene standards. Handwashing is an essential component of preventing infection, as is cleaning and disinfecting...
  6. From our Table to Yours: An Inside Look at Lunch at Addgene

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    Blog Post
    ...lab. Iron Chef-style competitions Every few months, we’ll have a cooking competition featuring a selected... eat together every day, sharing ideas for the company, but also talking about sports, movies, and just..., which is either an indication of the stiff competition or says something about my cooking.   This is... to organize. We’ll dedicate a post to these competitions in the future, and hopefully include some of...To-Do list long enough that there is no hope of accomplishing it all. How do we encourage people to take a... Hack Days, and we’ve seen great success at accomplishing “we-should-really-make-time-for-that” type projects...
  7. Deep Mutational Scanning with One Pot Saturation Mutagenesis

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    Blog Post
    ...based on its library frequency before selection compared to its library frequency after selection. Key ...and easy technique that can be used to generate complex libraries of mutant plasmids ready for deep mutational...libraries, they all have inherent shortcomings compared to one pot saturation mutagenesis. Error-prone...vector with Gibson assembly. While this is a comprehensive mutagenesis method, a drawback to using Gibson...scanning libraries. PFunkel: Of prior existing comprehensive mutagenesis methods, PFunkel offers the best...second universal primer is used to synthesize a complementary mutant strand (step 2 and 3). Then the uracil-labeled...PCR-based approach for generating a customizable comprehensive mutagenesis library that’s ready to be tested...
  8. Adeno-associated Viruses (AAVs) for Genome Editing

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    Blog Post
    ...likely not a coincidence that the AAV genome is composed of single stranded DNA, which is particularly ... interest, ordering them from a gene synthesis company such as IDT or Genscript, and cloning them sequentially...infection with adeno-cre. AAV-based gene editing compared to CRISPR editing CRISPR, of course, has started...and virtually never exceeds 40%. While this is comparable or better than the efficiency of most current...systems. Ohmori et al 2017 use a dual vector system composed of SaCas9 and a gRNA in one AAV and a repair template...researchers have devised methods to deliver CRISPR components as ribonucleoproteins (RNPs) that can be supplied...2017 recently showed that by delivering CRISPR components as RNPs and delivering two halves of a repair...
  9. Multiple Plasmids at a Low Price: Kits from Addgene

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    Blog Post
    ...now available. However, it can be difficult to compare their performance, as most translation initiation...directly engages the ribosome for translational complex assembly. PhD student Dejan Gagoski used SITS ...SITS to create the pCell-Free vectors, Gateway-compatible backbones that enable cell-free expression of proteins...-tagged human ORF clones to allow testing and comparison of different cell-free expression systems; the... construct barcoded, locus-specific libraries compatible with Illumina next generation sequencing in order...libraries using a 2-step PCR-based protocol and are compatible with single-end or paired-end read flow cells...21408-21413. PUF Assembly Kit PUF proteins are composed of repeat segments that can be engineered to bind...
  10. How to Negotiate a Successful Lab Start Up Budget

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    Blog Post
    ... Now that you’ve completed a resource budget, and know how to decide which components are the most critical...an account of the material resources needed to accomplish your science, and can include: equipment, reagents...then start identifying the resources needed to accomplish that goal. 2. Identify the tools in that timeline...research success. If you can get away with using computer modeling and collaborations rather than using ... most start-up P.I.’s. It doesn’t have to be complicated, or difficult to create this list. Start BEFORE...equipment. That’s why a resource budget can help you compare the monetary and empirical value that helps you...from academia altogether and instead started a company around his own research. He was clear on his science...
Showing: 281 - 290 of 954 results