The Kleinstiver Lab
We develop genome engineering technologies for research applications and for the treatment of human diseases. Learn more about our research and the people in the lab!
The Kleinstiver Lab is located in the Center for Genomic Medicine at Massachusetts General Hospital, and the Department of Pathology at Massachusetts General Hospital and Harvard Medical School. Reach out and join us!

News & things happening in the Kleinstiver Lab

Presentations @ CSHL CRISPR 2024 🎤
August 2024
Rachel & Jo gave excellent talks at the CSHL CRISPR conference '24 - great work! 🌟

Farewell & Congrats, Madeline! 🧬👩🔬
August 2024
Madeline had a really productive summer working with Blaire and Linyuan - we'll miss you!

Click editing is published! 🧬🔧
July 2024
Our manuscript describing click editors was published in Nature Biotechnology (see ReadCube link for a free version of the paper). Connor and Jo also assembled a Research Briefing and our work was also featured in a News & Views. For more information, see Xtorials: *here* and *here* and *here*

Congrats to Dr. Hille!! 🧑🎓🌟🎉
July 2024
Logan defended his PhD - the first graduate student to wrap up his thesis research in our group. Congrats to Logan on all that he accomplished during his tenure in the lab 🧫👏

Mini golf for a lab outing ⛳️
July 2024
Lots of birthdays, fellowships, and papers to celebrate this summer! 🎉

A farewhale party for Logan 🐳
May 2024
Lab dinner at Night Shift to celebrate Logan's upcoming farewell from the lab (kudos to Rachel for the cake 🎂)

A busy winter ❄️
Winter 2024
SpRY protein available commercially, a lab trip for ramen, and Chris builds out his group 🍜 👼

Holiday celebration season 🎁
December 2023
An international potluck, gift swap, and trip to the Liberty Hotel for our annual CGM holiday party 🎊 🥂

How do you like them apples 🍎
October 2023
A fruitful lab outing to pick some apples, eat treats, and play some games 🚐 🍎 ⛳️

Breakfast at Mamaleh's 🥯☕️
September 2023
Lots to celebrate - birthdays, preprints, and grants! Congrats to all on a busy summer full of new people in the lab and many exciting things.

Congrats Alex! 🎉
August 2023
Working with Emily, Alex spent her summer internship investigating some interesting properties of base editors 🧬🧑🔬

Celebrating Lani's farewell 🎉🩺
May 2023
An outing to PKL to congratulate Lani on 2 great years in the lab - wishing you all the best in medical school!

Farewell Ann-Sophie! 🔬🏓
April 2023
We really enjoyed having you in the lab! #quiddditchchampion

A productive winter for the lab
March 2023
Congrats to Chris on receiving several grants, and to Emily for passing her PQE & an NSF honorable mention. The lab was also awarded an MGH Research Scholar Award. And special thanks to Jo for making this lab cartoon 🙏😀.

"CRISPR Anywhere" a top tech to watch in 2023
January 2023
A fitting day for Russell to finally receive his very belated framed cover art, as Nature featured his work developing SpRY as one of "Seven Technologies to Watch in 2023". Amazing work, congrats Russell!

🧬 Two papers published to start the year 🎉
January 2023
Our manuscript describing HELIX to improve several properties of CRISPR-associated transposases published in Nature Biotechnology. See Connor's tweetorial and blog post.
We also contributed to an international collaboration on ancestral Cas enzymes (with data and analysis by Logan and Rachel).
Congrats to all co-authors 😃🥂

Lab get together 🍴
November 2022
A night of pasta 🍝 and spicy chips 🔥 to celebrate an exciting fall in the lab!

Annual Retreat for our Center
November 2022
Chris and Connor presented posters on their new exciting work at our CGM retreat (hosted at Broad institute)!

🎃 Happy Halloween 👻
October 2022
Spooky in the Kleinstiver lab with Laa-Laa, TInky-Winky, Po, Sun Baby, and Dipsy

🧬 SpRYgest manuscript published 🧬
October 2022
Our manuscript describing the use of SpRY for DNA digests (SpRYgests) published in Nature Biotechnology. See Katie's tweetorial and news here, here, and here. Congrats all 😃🍻

NIH Director's New Innovator (DP2) Award
October 2022
The lab was fortunate to receive an NIH grant! These funds will enable us to continue our work developing innovative genome editing technologies. More news here and here.

Lab bday celebrations 🎂
September 2022
A month full of birthdays and other things to celebrate!! 🥳

📣 DSB-free kb-scale edits 📣
September 2022
Connor's perspective piece on recent technology developments for large sequence edits published in Biochemistry

Congrats AJ!
August 2022
AJ gave an excellent presentation to the CGM, summarizing his project in the lab! Thanks for joining us, AJ!

Ice cream 🍦 for Jo's #scoopversary
August 2022
A worthy celebration of Jo's path to her great paper on DNA repair determinants of prime editing. Read more about the 🍦celebration here!

🍕 Pizza @ Area Four 🍕
August 2022
Celebrating AJ's summer internship, Jake's rotation, and Chris's fellowship!

Spring lab outing!
April 2022
Successfully escaped both rooms at PanIQ! 🕵️ 🔎

Farewell, KAC! 🎉
December 2021
Sending off the last Kleinstiver Lab OG with Korean food 🥘, a round of the Friends game, and a special 🐷. Best of luck in your new role at ScribeTx, Katie!

2021 Holiday Party
December 2021 🌟
Yankee Swap, games, and sushi 🍱

So Ultra 🏃
October 2021 🎃
The Kleinstiver Lab watched in awe as Connor fulfilled his life goal of pipetting and crushing a marathon at the same time

Farewell, Roman! 👨🔬
October 2021
Best oof luck on your next adventures, we'll miss you!

Patio lunch for Logan's Bday 🎈
October 2021
Complete with a bacon-wrapped, cheese- and sausage-stuffed, sausage. Amazing creation, Rachel! 🥓

Delicious Ube Mochi Cake for Connor's Bday 🎉
September 2021
Thanks to Katie and Rachel for this tasty treat!! 🎂

Congrats Esaria!
August 2021
Congrats to Esaria and the rest of the Eckerd College interns for a productive summer in the CGM!

Farewell BBQ for Madelynn!
July 2021
Wishing Madelynn all the best as she moves on to start grad school at U Penn in the fall!

Inaugural Kleinstiver Lab retreat
July 2021
Off for our first lab retreat in Provincetown for a day packed with exploring and eating!

Gallery Now Open 🎨
June 2021
The Kleinstiver Lab Art Gallery of Modern CRISPR Art is now open! Visits by appointment only.

Congrats Rachel!
June 2021
A well-deserved celebration for Rachel passing her PQE!

#luckylogan
March 2021
Happy St. Patrick's Day! 🍀

The lab receives an award!
March 2021
We're honored to receive this GenScript Distinguished Research Award, especially to share it with a distinguished scientist like Dr. Caixia Gao! Kudos and thanks to my lab, and all our colleagues, friends, and family who voted for us!! See more *here*

Join us!!
January 2021

Back in the lab after shutdown!
July 2020
After a long pause on wet-lab research, we're back in the lab. Stay safe everyone!

virtual PQE celebration
April 2020
Logan Hille (Harvard BBS PhD candidate) passed his PQE (preliminary qualifying exam) this week. Congrats, Logan! 💯🎉

The first paper from our lab published in Science!
March 2020
Our work to enable nearly complete targeting of the genome with CRISPR-Cas9 is published! Congrats to Russell (💯), Katie, and Madelynn on some truly impressive work.
Brief thread here + paper featured by Nature, MGH, GEN, and genomeweb.

Keystone Engineering the Genome
February 2020
Katie travelled to Canada to present her and Russell's latest work at the Keystone 2020 Conference, held in the beautiful city of Banff, AB.
📸 cred: @JulesGrünewald

CGM Holiday Party
December 2019
Another great holiday party with the Center for Genomic Medicine @ MGH, hosted at the Liberty Hotel, Boston

Kleinstiver Lab Holiday Celebration
December 2019
Holiday party complete with creatively wrapped yankee swap gifts, lab ornaments, and our newest lab member

Join us!
Before the spring
CRISPy, the pipetting snowman, won't last forever.. Check out our open positions here!

CGM annual retreat
October 2019
Katie presents her and Russell's exciting new work at the 2019 CGM retreat!