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The Blue Flame Award: Celebrating Addgene's Most Requested Depositors

Posted by Jane Hannon on Nov 14, 2016 10:30:00 AM

All plasmids deposited at Addgene enhance scientific sharing worldwide but a select few are particularly special. Over 1000 of our 60,000+ deposited plasmids have been requested more than 100 times each, thereby achieving the coveted “blue flame” status. We’re proud to honor the creativity, passion, and dedication to sharing epitomized by the creators of these plasmids with the first annual Blue Flame Awards.

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Topics: Hot Plasmids, Scientific Sharing, News

28 Hot Plasmid Technologies from 2015

Posted by Tyler Ford on Dec 23, 2015 10:30:00 AM



At Addgene we're continually impressed with the amazing plasmid technologies developed by our community of depositors. With over 40,000 plasmids avaliable in the repository, we can't give all of them attention they righlty deserve, but, in this post, we'll provide a small sampling of the many amazing new plasmid tools that have come through our doors in 2015. Do you have a favorite new plasmid tool from the past year? Let us know about it in the comments or shoot us an e-mail at blog@addgene.org and maybe we can write a blog post about it!

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Topics: Plasmid Technology, Hot Plasmids, Plasmid Kits

Illuminating Epigenetics with A FRET Based Biosensor

Posted by Emma Markham on Nov 19, 2015 10:30:00 AM

Epigenetics has recently been hitting the headlines, with sotires like the potential devastation of the palm oil industry through epigenetic effects on the Cover of Nature. So what is epigenetics and what tools are available to study it?

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Topics: Hot Plasmids, Fluorescent Proteins, Techniques

Inntags: Innovative Protein Epitope Tagging

Posted by Mary Gearing on Nov 10, 2015 10:30:00 AM

First described in the 1980s, protein tags are now one of the most useful items in a scientist’s toolbox. As we’ve covered in Plasmids 101, tags can help you determine localization of a protein of interest, purify it, or determine its expression level without the need for a custom antibody. There is one major caveat - a tag may interfere with protein localization and/or function, so each tagged protein must be tested carefully to ensure it retains the attributes of the native protein. Since this process takes a lot of time and energy, Martí Aldea and collaborators have created a set of “innocuous tags” (inntags) less likely to alter a protein’s properties.

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Topics: Hot Plasmids, Plasmid Elements

Easing the Protein Purification Process with pCri

Posted by Mary Gearing on Jun 19, 2015 11:08:00 AM

Protein purification can be one of the most stressful lab activities. Working with proteins requires a substantial amount of properly folded, relatively pure protein, but getting to this stage is often much easier said than done. As reviewed in our Plasmids 101 series, proteins are overexpressed from a plasmid construct, most often in special E. coli strains designed for protein expression. Cultures are then lysed and the protein of interest is purified using an affinity tag. Additional tags may be used to improve protein stability and solubility.

Determining the best way to express one’s protein of interest can save a lot of time later.

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Topics: Hot Plasmids, Plasmid Kits

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