Matthew Welch
@mattwelchlab.bsky.social
Scientist studying the cell biology and microbiology of host pathogen interactions. Professor and Co-Chair of Molecular and Cell Biology at UC Berkeley. https://mcb.berkeley.edu/labs/welch/
🔬 From our July issue: rupress.org/jcb/issue/22... A spinning-disk confocal image of HMEC-1 cells infected w/ #Rickettsia bellii (yellow, cytoplasmic GFP) & expressing a fluorescent marker of actin filaments (blue, RFP-F-tractin). By Bacher et al. @mattwelchlab.bsky.social: doi.org/10.1083/jcb....
Our newest microPublication is out online! Please check it out. @micropub7n.bsky.social
microPublication Biology@micropub7n.bsky.social · 2mo agoCryo-electron tomography reveals OmpB is required for the Rickettsia parkeri S-layer #micropublication #biology #data #caltechlibrary #Other #StructuralBiologyData #ModelsOfHumanDisease #NewFinding #R https://micropublication.org/journals/biology/micropub-biology-002219
Reminder for fellow cell biologists: the #CellBio2026 abstract deadline is June 9! Time to get those submissions in #ASCB www.ascb.org/cellbio2026/
Cell Bio 2026 - An ASCB|EMBO Meeting
Attend Cell Bio 2026 - An ASCB|EMBO Meeting and network
ascb.org
ASCB @ascbiology.bsky.social and EMBO @embo.org communities - Snezhka @alebenoit.bsky.social and I are Co-Chairs of the CellBio 2026 program committee. Please share that June 9th is the standard abstract deadline - earlier than in the past. Please submit an abstract and join us in San Diego!
New study from Bacher et al. in the @mattwelchlab.bsky.social @ucberkeleyofficial.bsky.social finds evidence for considerable evolutionary flexibility in the mechanism and regulation of microbial #actin-based #motility. rupress.org/jcb/article-... #Cytoskeleton #Microbiology #Rickettsia
New @jcb.org study from Bacher et al. in the @mattwelchlab.bsky.social @ucberkeleyofficial.bsky.social finds evidence for considerable evolutionary flexibility in the mechanism and regulation of microbial #actin-based #motility. rupress.org/jcb/article-... #Cytoskeleton #Microbiology #Rickettsia
Our most recent paper "Divergent Rickettsia species exhibit distinct mechanisms of actin-based motility" is now out in @jcb.org! Check it out here: rupress.org/jcb/article/...
All Friends of Berkeley MCB @berkeleymcb.bsky.social please consider making a donation to support our students, science, and department culture during today's Big Give givingday.berkeley.edu/giving-day/1...
Big Give 2026
March 12
givingday.berkeley.edu
UC Berkeley MCB@berkeleymcb.bsky.social · 5mo agoToday’s the day to make a BIG impact for the MCB community! 🌟 MCB faculty share—in their own words—why our initiatives matter. @doudna-lab.bsky.social @hariharanlab.bsky.social ✅ Read about our goals bit.ly/BigGiveMCB26goals ✅ Click 🔗 bit.ly/BigGiveMCB26 to donate
Congratulations to MCB faculty David Bilder, Rebecca Heald, James Hurley and Gary Karpen on receiving Miller Research Professorship Awards! 👏🎉 @bilderlab.bsky.social @jimhurley.bsky.social mcb.berkeley.edu/news-and-eve...
Congratulations to MCB's Dan Portnoy on receiving the 2025 Excellence in Advising Outstanding Faculty Advisor award from Berkeley’s Council on Advising and Student Services! 🎉👏 mcb.berkeley.edu/news-and-eve...
Congrats to MCB's Susan Marqusee @marquseelab.bsky.social on being selected as a 2025 Protein Society Fellow @proteinsociety.bsky.social! 👏🎉
Protein Society@proteinsociety.bsky.social · 11mo agoCongrats to our inaugural class of Fellows. Nominate a deserving colleague for our 2026 Fellows class - deadline to submit is November 1. Check our website for eligibility and guidelines: www.proteinsociety.org/fellows
Congrats to MCB's James Nuñez @jamesknunez.bsky.social on being named a 2025 Vallee Scholar @valleefoundation.bsky.social! 🎉👏 thevalleefoundation.org/news/2025-va...
Congrats to MCB's James Olzmann @olzmannlab.bsky.social on receiving the ASBMB 2026 Avanti Award in Lipids @asbmb.bsky.social! 👍🎉
James Olzmann@olzmannlab.bsky.social · 11mo agoHumbled and honored to receive the 2026 Avanti Award in Lipids from ASBMB! Grateful to my exceptional lab, mentors, and collaborators for their support and inspiration. Excited to keep pushing the boundaries of lipid biology and therapeutics! www.asbmb.org/asbmb-today/...
Our newest preprint on bioRxiv @biorxivpreprint.bsky.social "Divergent Rickettsia species exhibit distinct mechanisms of actin-based motility" reveals surprising evolutionary flexibility in the mechanisms of Rickettsia actin-based motility www.biorxiv.org/content/10.1...
We're Hiring! Assistant Professor of Immunology and Molecular Medicine in MCB. Learn more and apply online: aprecruit.berkeley.edu/JPF05096
We're Hiring! Assistant Professor of Molecular Therapeutics in MCB. Learn more and apply online: aprecruit.berkeley.edu/JPF05098
Exciting research out of the Nayak lab! 🧪 news.berkeley.edu/2025/08/14/s...
Scientists hack microbes to identify environmental sources of methane - Berkeley News
UC Berkeley researchers tweaked a key enzyme involved in microbial methane production to understand the unique fingerprints of different environments on Earth that generate the greenhouse gas.
news.berkeley.edu
And another one for MCB's Yvette Fisher @yvetteefisher.bsky.social! 🔥Congrats on being named a @hhmi.org 2025 Freeman Hrabowski Scholar! 🥂https://www.hhmi.org/programs/freeman-hrabowski-scholars/2025-scholars
Congrats to MCB's Filipa Rijo-Ferreira on being named a @hhmi.org 2025 Freeman Hrabowski Scholar! 🎉👏 www.hhmi.org/programs/fre...
Congrats to MCB's Yang Dan & Donald Rio on their election to the American Academy of Arts & Sciences! 👏🎉 www.amacad.org/new-members-...
Thanks Wendy @wendyingram.bsky.social and Dragonfly @dragonflymh.bsky.social for your pioneering work promoting mental health wellness in academia. MCB @berkeleymcb.bsky.social at UC Berkeley @ucberkeleyofficial.bsky.social appreciates your efforts and expertise. news.berkeley.edu/2025/04/21/a...
A spate of suicides drew this alumna back to UC Berkeley to confront mental health issues in academia - Berkeley News
Encouraged by Wendy Ingram, a 2014 Berkeley Ph.D. recipient, eminent faculty members shared their experiences with depression and anxiety to help bring these struggles into the open.
news.berkeley.edu
Congrats to MCB's Diana Bautista and David Bilder for being named as AAAS Fellows @aaas.org! @bilderlab.bsky.social 👏 🎉https://news.berkeley.edu/2025/03/27/seven-faculty-members-named-fellows-of-american-association-for-the-advancement-of-science/
American Association for the Advancement of Science@aaas.org · last yr.Congratulations to the new 2024 AAAS Fellows class! They are a distinguished cadre recognized for their achievements across disciplines, including research, and teaching. www.aaas.org/news/aaas-we...
Congrats to MCB faculty David Raulet and graduate student Elle Andrews on receiving 2025 Berkeley Graduate Mentoring Awards! 👏🎉 @davidraulet.bsky.social grad.berkeley.edu/news/celebra...
Congratulations to MCB undergraduates Carolyn Nguyen (Nuñez Lab), Karla Tapia (Hurley Lab), Shriprithi Vel Murugan (Hurley Lab), and Selina Wu (Hurley Lab) who were recently named Spring 2025 Ignite Scholars by the Bakar Fellows Program! 👏 bakarfellows.berkeley.edu/bakar-fellow...
Bakar Fellows Program Welcomes Spring 2025 Ignite Scholars - Bakar Fellows Program
Meet the Fall 2024 cohort of the Bakar Ignite Scholars Program.
bakarfellows.berkeley.edu
Our #berkeleyMCB community is already coming together to make a BIG impact for #CalBigGive! As a special incentive, once we receive 100 gifts 🎁 it will unlock 2 special donations from members of our community. Please help us meet this funding challenge! bit.ly/BigGiveMCB25
Interesting analysis of the amazing economic activity fueled by NIH-funded research - a return on investment of $2.56 for every $1 in awards: www.forbes.com/sites/michae...
NIH Grants Fueled $95 Billion In FY 2024 Economic Activity, Finds New Report
National Institutes of Health grants generated almost $95 billion in economic activity nationwide in FY 2024 according to a new report by United for Medical Research.
forbes.com
Big news: we are setting up a new non-profit organization to run bioRxiv and medRxiv. It's called openRxiv [no it's not a new preprint server; it's dedicated organization to oversee the servers] openrxiv.org 1/n
Homepage - openRxiv
openRxiv is an independent non-profit, the new organizational home for bioRxiv and medRxiv, enabling researchers to instantly share groundbreaking findings with the global scientific community.
openrxiv.org
I'm glad to have attended two Stand up for Science #standupforscience rallies last Friday, including this one at UC Berkeley @ucberkeleyofficial.bsky.social -https://www.kqed.org/news/12030313/uc-berkeley-scientists-protest-trump-administrations-cuts-to-research-funding
UC Berkeley Scientists Protest Trump Administration’s Cuts to Research Funding | KQED
Hundreds of UC Berkeley scientists and students rallied in support of research funding as President Donald Trump delayed and slashed research budgets.
kqed.org
Good crowd at #standupforscience in San Francisco and great speeches by CA State Senator Scott Wiener @scottwiener.bsky.social and Stanford (also former UC Berkeley) professor Carolyn Bertozzi @carolynbertozzi.bskyverified.social
