Jamie Blaza

Ten years of the CCP-EM Spring Symposium pubmed.ncbi.nlm.nih.gov/41324471/ #cryoEM

If you or someone you know is looking for a post-doctoral position working on mycobacterial envelope biology, please get in touch. I am recruiting here at the University of Western Ontario in London, Ontario, Canada.

want to see a chemotaxis array (G) and a post-discharge T6SS (I) ? inside 𝘝𝘪𝘣𝘳𝘪𝘰 𝘧𝘪𝘴𝘤𝘩𝘦𝘳𝘪 inside a 𝘌𝘱𝘳𝘺𝘮𝘢 𝘴𝘤𝘰𝘭𝘰𝘱𝘦𝘴 crypt ? go no further...

#CryoET #CryoEM #teamtomo #MicroSky

I, @kaytrue.bsky.social, and others on this thread have not made or supported any claims about scaffolds. We have studied 2D phase separation within model membranes and in some cases, such as the yeast vacuole, cell membranes.

I fully agree. The term LLPS is probably not the correct one to describe what happens in cells.
However, the formation of dynamic low-order condensates driven by low affinity multivalent proteins (often highly disordered) seems to occur in cells.

My opinion is that it's an analogy; there's nothing there to test. This is what makes it pseudoscience; philosophical analysis alone reveals the flaw.

And the hard school sees it as something much more profound and fundamental but in such waffly way that it can constantly avoid falsification. These are the ones falling foul of @andrea-musacchio.bsky.social’s recent analyses

The soft school sees it as an analogy first used ~10 years ago that probably now does more harm than good and should be replaced. Certainly that seems to be where the pyrenoid field is at, which is the only game I have skin in

Those are exactly the words I was looking for. And as often happens in philosophy I think there are two schools, hard and soft

An obviously AI-generated figure with AI slop and fake text all over it, recently published in Scientific Reports.

Since AI slop is again all over Scientific Reports, a thread on the economics of grey-zone publishing.

Why does slop keep getting published? What does it mean for science? How can we stop this?

Background readings:
Understand the strain: tinyurl.com/2b6wxx5r
Stop the drain: tinyurl.com/3jfscscy

Visualizing the translation landscape in human cells at high resolution pubmed.ncbi.nlm.nih.gov/41315256/ #cryoEM

Design, Synthesis, and Biological Evaluation of Mono- and Diamino-Substituted Squaramide Derivatives as Potent Inhibitors of Mycobacterial Adenosine Triphosphate (ATP) Synthase Amides of squaric acid are new drug candidates with activity against mycobacteria. Like the approved drug bedaquiline, these compounds achieve efficacy by inhibiting mycobacterial ATP synthase. Howeve...

Exciting collab with Paul Palme, Peter Imming, & Adrian Richter!
Guided by @courbongautier.bsky.social's structure of myco ATP synthase bound to a squaramide, they have made SQAs that are less toxic, more potent, more stable than AstraZeneca's SQ31f
#MedChem #TB #NTM
pubs.acs.org/doi/full/10....

Required reading for my lab!

Now properly published at @natcomms.nature.com with few additional experiments incl. demonstration of Daptomycin's ability to depolarise non-growing cells.
See the original preprint-thread for a summary of our findings.
www.nature.com/articles/s41...
#microsky

A ubiquitin-like protein controls assembly of a bacterial type VIIb secretion system Cryo-EM structure reveals how a ubiquitin-like protein orchestrates assembly of a bacterial weapon system.

Our latest T7SS study is now out in Science Advances!
We solved the cryoEM structure of the T7SSb core unit (T7bCU) composed of YukB, YukC, and YukD from Bacillus subtilis, revealing how these components assemble within the secretion machinery.

www.science.org/doi/10.1126/...

🚨Job claxon 🚨

University College Cork is looking to appoint a lecturer in Medical Microbiology into a permanent, non-clinical post

A great opportunity in a microbiology powerhouse

For details go to my.corehr.com/pls/uccrecru... and enter reference number 092153

Powering team science to unlock life’s secrets Four world-class teams awarded major BBSRC sLoLa grants to push the frontiers of discovery in microbiology, photosynthesis, gene regulation and quantum biology.

Really excited to say that we have been awarded a BBSRC sLola! Really looking forward to kick off this project with such a fantastic team! @webberma.bsky.social @overtonlab.bsky.social @bugsinblood.bsky.social Sara Jabbari, Dong-Hyun Kim @imibirmingham.bsky.social www.ukri.org/news/powerin...

With the Wilmanns lab @embl.org we reveal cryoEM structures of an essential, bifunctional acyl-CoA carboxylase from mycobacteria. @wertheimufscripps.bsky.social

This ~ 600 kDa enzyme is asymmetric, rotatory, has unusual stoichiometry, and unique E5 subunits.

www.biorxiv.org/content/10.1...

Why does daptomycin resistance appear so fast in Enterococcus? We finally have a clue.

DAP resistance in enterococci pops up quickly. What’s been missing is why resistance-associated membrane changes look the way they do, and why the classic path of mutations is so predictable.

Hydrophilic metformin and hydrophobic biguanides inhibit mitochondrial complex I by distinct mechanisms - Nature Structural & Molecular Biology He, Teng and Yang et al. report how metformin, the widely used antidiabetic drug, inhibit its target, the respiratory complex I, through a distinct state-dependent, inhibitor trapping mechanism, thus ...

How does the well tolerated anti-hyperglycemic drug #metformin inhibit mitochondrial complex I?
In our new paper, we use structures, MD and kinetics to show that metformin inhibits by a distinct mechanism that more hydrophobic, less well tolerated, biguanides.
www.nature.com/articles/s41...

Chair of Pharmacology and Toxicology - Salt Lake City, Utah job with The University of Utah | 37914733 The University of Utah seeks a Chair of Pharmacology and Toxicology

After 10 years, I am stepping down as chair of our department and we have an active search going on! Utah is a phenomenal place to live and work and it's been the honor of a lifetime chairing the department founded by Lou Goodman. #MedSky #Neuroskyence Repost!

jobs.chronicle.com/job/37914733...

Computrs usd a rstrictd alphabt to dsign protins that fold & “mak sns.”

Great work on a tricky target!

A table showing profit margins of major publishers. A snippet of text related to this table is below. 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year.

A figure detailing the drain on researcher time. 1. The four-fold drain 1.2 Time The number of papers published each year is growing faster than the scientific workforce, with the number of papers per researcher almost doubling between 1996 and 2022 (Figure 1A). This reflects the fact that publishers’ commercial desire to publish (sell) more material has aligned well with the competitive prestige culture in which publications help secure jobs, grants, promotions, and awards. To the extent that this growth is driven by a pressure for profit, rather than scholarly imperatives, it distorts the way researchers spend their time. The publishing system depends on unpaid reviewer labour, estimated to be over 130 million unpaid hours annually in 2020 alone (9). Researchers have complained about the demands of peer-review for decades, but the scale of the problem is now worse, with editors reporting widespread difficulties recruiting reviewers. The growth in publications involves not only the authors’ time, but that of academic editors and reviewers who are dealing with so many review demands. Even more seriously, the imperative to produce ever more articles reshapes the nature of scientific inquiry. Evidence across multiple fields shows that more papers result in ‘ossification’, not new ideas (10). It may seem paradoxical that more papers can slow progress until one considers how it affects researchers’ time. While rewards remain tied to volume, prestige, and impact of publications, researchers will be nudged away from riskier, local, interdisciplinary, and long-term work. The result is a treadmill of constant activity with limited progress whereas core scholarly practices – such as reading, reflecting and engaging with others’ contributions – is de-prioritized. What looks like productivity often masks intellectual exhaustion built on a demoralizing, narrowing scientific vision.

A table of profit margins across industries. The section of text related to this table is below: 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year.

The costs of inaction are plain: wasted public funds, lost researcher time, compromised scientific integrity and eroded public trust. Today, the system rewards commercial publishers first, and science second. Without bold action from the funders we risk continuing to pour resources into a system that prioritizes profit over the advancement of scientific knowledge.

We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing:

a 🧵 1/n

Drain: arxiv.org/abs/2511.04820
Strain: direct.mit.edu/qss/article/...
Oligopoly: direct.mit.edu/qss/article/...

SWBio PhD studentships available- join my lab to investigate phage structure with @btemperton.bsky.social tinyurl.com/ytdft9bj

How to Apply - MRC London Intercollegiate Doctoral Training Partnership Studentships MRC LID is open for application for 2026-27 PRE-APPLICATION STEPS 1. Find out more about...

For anyone interested in doing a PhD at the interface of microbiology and immunology focusing on how AMR pathogens subvert host defenses...you may consider applying to our MRC LID DTP project in which we will explore how Klebsiella hijacks the immune checkpoint PD-L1 mrc-lid.lshtm.ac.uk/apply/

An Asgard archaeon with internal membrane compartments

Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!

www.biorxiv.org/content/10.1...

A brilliant day- lots of positive energy from the Newcastle, Durham, and Northumbria teams to put their Tundra to good use!

Very dramatic photo of Vicky!