Addgene Newsletter, March 2026 | Special Edition

Hi Reader,

We’re always looking for ways to strengthen the infrastructure that supports open, reproducible science. Today, we’re sharing an important update on how Addgene is evolving our sequencing operations to support our growing repository — while maintaining the quality and reliability you expect. 

In this special edition:

• Our partnership with Plasmidsaurus
• AAV9 now available through Packaged on Request
• The latest Hot Plasmids
• A few days left to use this quarter’s coupon
  

Plasmidsaurus as our Sequencing Partner

Every day, researchers around the world are developing and sharing exciting new tools, and we want to make sure those materials are verified and available to the scientific community as quickly as possible. Keeping pace with that momentum means continuously improving how we efficiently and reliably sequence what comes into our ever-growing collection. That's why we've selected Plasmidsaurus as our sequencing partner.

Plasmidsaurus will now handle the majority of Addgene's whole-plasmid sequencing using long-read sequencing technology — an approach that is rapidly becoming the industry standard for whole-plasmid verification, with particular advantages for plasmids with complex or repeated features.

What’s not changing? Addgene will continue to perform rigorous QC and analysis on all sequencing data, so the quality standards our users know and trust remain unchanged. This partnership strengthens our ability to maintain them as the collection continues to grow.

A Welcome Offer from Plasmidsaurus

To celebrate this partnership, Plasmidsaurus is offering complimentary sequencing services for new customers in the Addgene community. If you haven’t used Plasmidsaurus before, use code ADDGENE at checkout to receive your first three plasmid sequences free (a $45 value). Their whole-plasmid, long-read sequencing platform delivers results overnight — no primers needed.

Now Available: AAV9 for Packaged on Request

We’ve expanded our on-demand viral packaging options with the addition of AAV9, a serotype widely used for CNS and systemic in vivo applications. Choose from over 4,000 eligible plasmids, eight serotypes, and multiple size options to fit your experimental needs.

Hot Plasmids

Did you catch our latest Hot Plasmids blog post? Highlights include:

• Highly photostable mScarlet3 variants
• Addgene's own AAV2 and AAV5 packaging plasmids
• TimeVault system for preserving transcriptomic state
• An engineered bacterial strain with a single stop codon
• Improved mouse and human CRISPR knockout libraries
• Neurexin and Neuroligin antibodies from IPI

Q1 Savings from Addgene

Just a few days left to use this quarter's $20 off coupon. 

Expires March 31, 2026.