Arthur Charles-Orszag @acharlesorszag.bsky.social · 14/09/2026@spearmicrobe.bsky.social, me and our land yacht at Mud Caldron 🔥 🧖🏻 030
Arthur Charles-Orszag @acharlesorszag.bsky.social · 14/09/2026Andy and I finally got to see Yellowstone! Pictured here are Grand Prismatic and the legendary Mushroom Spring (Taq) 170
Arthur Charles-Orszag @acharlesorszag.bsky.social · 03/08/2026The lab CryoCube freezer’s alarm has been a little temperamental lately, so the undergrads renamed it the “Cry-ocube” 280
Reposted by Arthur Charles-OrszagPride in Microbiology @prideinmicro.bsky.social · 01/06/2026💪🏳️🌈 Little Microbes, Big Pride!🏳️🌈 💪 We wish everyone a wonderful Pride Month! 1101
Arthur Charles-Orszag @acharlesorszag.bsky.social · 03/06/2026Your cells may be thriving but your abstract still needs submitting 🧬😬 Deadline: June 9 #CellBio2026 www.ascb.org/cellbio2026/ascb.orgCell Bio 2026 - An ASCB|EMBO MeetingAttend Cell Bio 2026 - An ASCB|EMBO Meeting and network 001
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 13/05/2026Archaea Power Hour returns next WEDNESDAY, May 20th, at 10AM EST / 4PM CET for the final installment of our spring semester seminar series!! We have two exciting talks planned for you so check your email for the Zoom link (coming soon) or visit our website (link in bio) for more info on how to join. 1119
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 19/05/2026Almost archaea time!! Tune in tomorrow, Wednesday, May 20th at 10 AM EST / 4PM CET for the last seminar of our spring series 🥲. We have an exciting methanogen double feature in store for you! First up, Dr. Christian will tell us about his work enriching a novel methanogen from the Great Salt Lake! 122
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 19/05/2026Second up tomorrow, we have Anupkumar Rai who will tell us about his work biochemically characterizing an oxygen detoxifying enzyme that helps everyone’s favorite methanogen, Methanosarcina acetivorans, grow in the presence of O2. Check your email or Slack for the Zoom link!! 232
Arthur Charles-Orszag @acharlesorszag.bsky.social · 13/05/2026Last one of the semester!! Be there or be H. walsbyi 🥁 000
Arthur Charles-Orszag @acharlesorszag.bsky.social · 12/05/2026Reposting this as the deadline is less than a month from now! Spread the word! 000
Reposted by Arthur Charles-OrszagBuzz Baum @buzzbaum.bsky.social · 09/04/2026🎉 This is also a symbolic moment for the field: around 50 years since Carl Woese and colleagues first recognised Archaea as a distinct domain of life, fundamentally changing our understanding of evolution. 163
Reposted by Arthur Charles-OrszagCell Biology J-Club @cellclub.bsky.social · 21/04/2026Bridging the lipid divide: archaeal ESCRT-III binds phosphoinositol and polarises the cytokinetic membrane www.biorxiv.org/content/10.6...biorxiv.org 0156
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 21/04/2026Second up tomorrow, April 22nd at 10AM EST / 4PM CET, Katy Weber will tell us about her interesting work to mechanistically characterize electron transfer in a reductase protein from Haloferax volcanii!! Visit the link in our bio for more info on how to join our community!! 164
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 21/04/2026Set your archaea alarms because APH starts tomorrow, Wednesday 4/22, at 10AM EST / 4 PM CET. We’ll start off with an intriguing talk from Dr. Alex Phillips about how droughts 🌵and floods 🌊 in the Great Salt Lake affect haloarchaeal inhabitants!! Check your email for the Zoom link!! 153
Arthur Charles-Orszag @acharlesorszag.bsky.social · 20/04/2026🚨Hear, hear, fellow microbial cell biologists!🚨 🦠 Bacterial and Archaeal Cell Biology will be represented again at this year’s CELL BIO (ASCB-EMBO) meeting! The deadline to be considered for a talk in our Minisymposium is June 9. Help us spread the word! www.ascb.org/cellbio2026/ascb.orgCell Bio 2023-An ASCB|EMBO MeetingNetwork, learn, and collaborate with top cell biologists from around the globe. 13024
Arthur Charles-Orszag @acharlesorszag.bsky.social · 26/03/2026Today was also the lab’s first sampling trip, hunting for archaea around Davis! 3232
Arthur Charles-Orszag @acharlesorszag.bsky.social · 25/03/2026Join me in welcoming the lab’s first graduate student, Jaylen Bush! That’s a well-deserved slice, Jaylen 🍕 1140
Arthur Charles-Orszag @acharlesorszag.bsky.social · 13/03/2026Science Policy APH social edition next week! 041
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 15/12/2025Second up this Wednesday, Jiayuan Cui will tell us about her exciting and rigorous research biochemically characterizing a radical SAM enzyme involved in archaeal monolayer lipid (GDGT) cross-linking. Check your email for the Zoom link or visit our website (link in bio) for more info on how to join! 153
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 15/12/2025Archaea Power Hour is back for our final session of the semester this WEDNESDAY, Dec. 17th, at 10AM EST / 4PM CET. We’ll start off with an intriguing talk from @fmacleod.bsky.social about his work uncovering unique intracellular membrane-bound compartments in an Asgard archaeon!!! 163
Reposted by Arthur Charles-OrszagLGBTQ+ Cell Biologists @celllgbtq.bsky.social · 09/12/2025Lastly, for those at #CellBio25, we will be having a social TONIGHT at Little Gay Pub (102 S 13th Street) at 8 p.m.! Come meet the LGBTQ+ committee and let's celebrate another great conference! #outinstem #LGBTQIA #LGBTQ #queerinstem #cellbio #cellbiology #ascb #CellBio2025 055
Arthur Charles-Orszag @acharlesorszag.bsky.social · 26/11/2025Tomorrow!! Special Pohlschröder lab double feature, because we halove their work (going to pun hell now) 010
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 25/11/2025Archaeasalutations!! Archaea Power Hour is back tomorrow (Wednesday) at 10 AM EST / 4 PM CET!! Check your email for the Zoom link or sign up to join our mailing list here: docs.google.com/forms/d/e/1FAI…. Check out the two exciting talks we have planned for you: 194
Arthur Charles-Orszag @acharlesorszag.bsky.social · 07/11/2025Stunning! Congrats @buzzbaum.bsky.social et al! 140
Arthur Charles-Orszag @acharlesorszag.bsky.social · 07/11/2025Rest in power Zara, you’ll be missed 010
Reposted by Arthur Charles-OrszagFabai Wu @fabaiwu.bsky.social · 21/10/2025Glad to share our paper out today @NatureEcoEvo: “Serial innovations by Asgard archaea shaped the DNA replication machinery of the early eukaryotic ancestor”. www.nature.com/articles/s41... #microsky #archaeaskynature.comSerial innovations by Asgard archaea shaped the DNA replication machinery of the early eukaryotic ancestor - Nature Ecology & EvolutionPhylogenetic and biochemical analyses show a diversity of components of the DNA replication machinery in different Asgard archaea that contributed to the eukaryotic DNA replication machinery. 56728
Arthur Charles-Orszag @acharlesorszag.bsky.social · 17/10/2025Don’t miss the first APH meeting of the season this coming Wednesday! 032
Arthur Charles-Orszag @acharlesorszag.bsky.social · 15/09/2025Welcome to our first postdoc in the ACO Lab, Andy Garcia! 🎉 0170
Arthur Charles-Orszag @acharlesorszag.bsky.social · 01/09/2025Supporting each other as #newPI is very important, and @antonioserapio.bsky.social is great at it 000
Arthur Charles-Orszag @acharlesorszag.bsky.social · 30/08/2025🚨 🚨 🗓️ The deadline to submit your abstract for the #ASCB2025 meeting in Philadelphia is this Wednesday, September 3!! Dyche Mullins and I are hosting the session “Cell Biology at the Extremes”. Thermophiles, psychrophiles, tardigrades, giant bacteria… now is your time to shine!! 🚨 082
Reposted by Arthur Charles-OrszagSvetlana Dodonova @dodonova-sveta.bsky.social · 26/05/2025We’ve uncovered Asgard chromatin structures formed by a Hodarchaeal histone : closed hypernucleosome conserved in archaea and an open form resembling the H3-H4 eukaryotic octasome. Fantastic work by @harshranawat.bsky.social! www.biorxiv.org/content/10.1... #Chromatin #Asgard #Archaea #cryoEM 13237101
Arthur Charles-Orszag @acharlesorszag.bsky.social · 29/05/2025The archaeal S-layer is not only pretty, it also carries crucial cellular functions, and the list keeps growing! @sshamphavi.bsky.social @marleenvw.bsky.social @archaellum.bsky.social and I wrote a little sheath sheet (+10 pts if you got the pun) 📖 Curr Opin Cell Biol 🔗 doi.org/10.1016/j.ce... 33820
Arthur Charles-Orszag @acharlesorszag.bsky.social · 29/05/2025What a year for the cell biology of archaeal chromosome segregation! 🧬 @joeparham19.bsky.social and @buzzbaum.bsky.social now add pieces to the SegAB puzzle by connecting it with cell division 083
Reposted by Arthur Charles-OrszagJoe Parham @joeparham19.bsky.social · 29/05/2025To explore how ring assembly and DNA segregation might be coupled, we turned our attention to the ParA homologue, SegA, and its partner SegB, using antibodies kindly gifted by @acharlesorszag.bsky.social (see www.biorxiv.org/content/10.1...)biorxiv.orgArchaeal SegAB forms a bipolar structure that promotes chromosome segregation in spherical cellsArchaeal segAB operons are thought to promote chromosome segregation, but their mechanism remains unknown. We employ comparative genomics, structural biology, genetic knockouts, and quantitative cell ... 131
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 12/05/2025In just 2 days on WEDNESDAY, May 14th at 10 AM EST / 4 PM CET, @fabaiwu.bsky.social will kick off our last spring APH session by telling us about his new research investigating the evolution of DNA replication machineries from Archaea to Eukaryotes!!! Visit our website (link in bio) for more info! 186
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 12/05/2025Think you're under pressure? Marion Illartin will close out our last APH session of the semester by telling us about her multidisciplinary approach to characterize how pressure regulates the SurR transcription factor in everyone's favorite barophile, Thermococcus barophilus!! Zoom in on May 14th! 023
Arthur Charles-Orszag @acharlesorszag.bsky.social · 08/05/2025Don’t miss it!! Last APH of the season 🫶🏼 020
Reposted by Arthur Charles-OrszagPLOS Biology @plosbiology.org · 22/04/2025The unique #CellEnvelope of #corynebacteria: @tbharat-lab.bsky.social &co map the C. glutamicum cell surface, revealing a patchy S-layer & specific assembly of the PS2 protein, thereby informing our understanding of cell envelopes that contain #MycolicAcids @plosbiology.org 🧪 plos.io/3Y6JNgw 13414
Reposted by Arthur Charles-OrszagBuzz Baum @buzzbaum.bsky.social · 18/04/2025Excited to announce the Molecular Biology of Archaea (MBoA) 2026! Join us in Cambridge, UK, from 6–10 July 2026 for the only international meeting dedicated to Archaea. 37036
Arthur Charles-Orszag @acharlesorszag.bsky.social · 17/04/2025Coolest office poster, the Beaud - Gribaldo ToL 😎 Thank you @sgribaldo.bsky.social and @babebe.bsky.social 🫶🏼 4211
Arthur Charles-Orszag @acharlesorszag.bsky.social · 16/04/2025Preprint alert! I’m publishing my last paper from my postdoc work on archaeal cell biology, with @mullinslab.bsky.social, @archaellum.bsky.social, @samjlord.bsky.social, @marleenvw.bsky.social, @arghya93.bsky.social, and more great folks (thread below with more details) 75719
Arthur Charles-Orszag @acharlesorszag.bsky.social · 10/04/2025Never too late to repost a great paper ✨ Huge congrats to @archaeon-alex.bsky.social and the amazing Theopi Rados (and all the authors ofc) 🫶🏼 020
Arthur Charles-Orszag @acharlesorszag.bsky.social · 08/04/2025🚨 Tune in this Wednesday for more exciting archaea science! 054
Reposted by Arthur Charles-OrszagAmerican Society for Cell Biology @ascbiology.bsky.social · 11/03/2025Nearly 40% of transgender and gender-nonconforming biologists report experiencing hostile behavior at work, according to the largest survey of LGBTQ+ biologists, created by ASCB's LGBTQ+ Committee. www.nature.com/articles/d41...nature.comTrans researchers under attack: LGBTQ+ biologists face hostile work environmentLargest survey of LGBTQ+ biologists finds 40% of trans and gender-nonconforming, and 20% of lesbian, gay, bisexual and queer researchers, experience hostility, intimidation or offensive behaviour at w... 01912
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 11/03/2025Second up on Wednesday, March 12th, we'll have Priyanka Chatterjee talk to us about her intriguing research into quorum sensing in the salty Haloferax volcanii, identifying many key players in this cellular communication response in archaea! Check your email for the Zoom link! 042
Reposted by Arthur Charles-OrszagArchaea Power Hour @archaeapowerhour.bsky.social · 11/03/2025Archaea Alert! We're just one day away from our next APH session! First up, @cjhines.bsky.social will tell us about his exciting work to uncover the elusive last step of coenzyme M biosynthesis and to demonstrate its effectiveness as an antioxidant!! Make sure to tune in on March 12th, 11AM EST!! 042