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Castañeda Lab at SU

@castanedalab.bsky.social

Using molecular biophysics, biochemistry, and cell biology to understand the intersection of protein quality control mechanisms and neurodegenerative disorders (ALS, FTD); IDPs, Ub biology, UBQLNs

1,152 Followers  |  609 Following  |  54 Posts  |  Joined: 05.10.2023  |  2.5477

Latest posts by castanedalab.bsky.social on Bluesky

Talk titles for IDPSeminars on Dec 4th at noon central time. 

Alex Holehouse (Washington University in St. Louis): Sequence-to-ensemble  with STARLING

Birthe Kragelund (University of Copenhagen): Disordered protein complexes and the origins of life

Talk titles for IDPSeminars on Dec 4th at noon central time. Alex Holehouse (Washington University in St. Louis): Sequence-to-ensemble with STARLING Birthe Kragelund (University of Copenhagen): Disordered protein complexes and the origins of life

We're back for our final seminar of 2025 with talks from @alexholehouse.bsky.social and Birthe Kragelund! 1 pm EST or 7 pm European time. If you're not already signed up, head on over to idpseminars.com to register!

01.12.2025 16:01 — 👍 15    🔁 12    💬 0    📌 1
LinkedIn This link will take you to a page that’s not on LinkedIn

As the Executive Editor of BBA Reviews on Cancer, I am pleased to announce Call for Nominations: *BBA Rising Stars in Biochemistry & Biophysics 2026*!Nominate outstanding scientists within 10 years of their PhD for this prestigious award. Deadline: Dec 1, 2025.
lnkd.in/dRzrNbJZ

03.11.2025 15:26 — 👍 0    🔁 1    💬 0    📌 0
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Biological Laboratory | LEGO® Ideas This is a two-floor realistic Biological Laboratory building. In this design, I try to tell stories about biologists, introduce biology concepts to general publ…

I just made an account and voted for this biology laboratory made of LEGO to "promote biological research and inspire more people into the world of biology". They need 10K votes. Reposting and/or voting below would be helpful. 🤗
beta.ideas.lego.com/product-idea...

16.10.2025 08:07 — 👍 117    🔁 65    💬 6    📌 7
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Research Scientist I Medical College of Wisconsin - Research Scientist I - Milwaukee WI 53201

Come work with us at MCW! This position is in the Translational Metabolomics-Preclinical Imaging Shared Resource. This position involves imaging mice, rats and other small animal models with multimodal imaging.

careers.peopleclick.com/careerscp/cl...

10.10.2025 01:00 — 👍 0    🔁 1    💬 0    📌 0

Super congratulations @alexholehouse.bsky.social ! Super excited for you and your research directions! Congrats!!!

02.10.2025 16:08 — 👍 0    🔁 0    💬 0    📌 0

So thrilled for you! Congratulations, @luciastrader.bsky.social !

24.09.2025 01:37 — 👍 3    🔁 0    💬 1    📌 0
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Biomolecular phase boundaries are described by a solubility product that accounts for variable stoichiometry and soluble oligomers The solubility product is a rigorous description of the phase boundary for salt precipitation and has also been used to qualitatively describe the condensation of biomolecules. Here we present a deriv...

"What does this curved line mean?"
Like palm reading for your phase boundary.

Plus, when is your condensate actually an oligomer (or vice versa)?

A new preprint from the Schmit Group, in collaboration with Jonathon Ditlev, Les Loew, and @ani-chattaraj.bsky.social

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

02.09.2025 13:32 — 👍 11    🔁 3    💬 0    📌 0

If you are a researcher whose lab uses FlyBase, consider a tax-deductible personal contribution. A lot of $100 contributions would help bridge the gap until we can set up a user fee system, and even $10 donations send the folks there the message we're behind them. Please share

27.08.2025 00:27 — 👍 59    🔁 48    💬 2    📌 1
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Opinion | America First? Not When It Comes to Your Health.

New York Times story with profiles of researchers whose grants were terminated.

[Gift Link]

www.nytimes.com/2025/08/24/o...

24.08.2025 13:08 — 👍 478    🔁 313    💬 6    📌 22

Fun times! Thanks @drhougs.bsky.social

16.08.2025 13:00 — 👍 1    🔁 0    💬 0    📌 0
A bar graph of the fraction of NIH non-competitive renewal awards received by month showing that fewer awards that expected to being given.

A bar graph of the fraction of NIH non-competitive renewal awards received by month showing that fewer awards that expected to being given.

Update on NIH funding through July (August 1 budget start dates)

Non-competitive renewal awards by month for fiscal year 2025

1/7

13.08.2025 17:56 — 👍 54    🔁 22    💬 2    📌 1

Happy RNA Day to those who celebrate! 🧪 It’s AUG 1: the day we Met 🤓

01.08.2025 13:55 — 👍 78    🔁 27    💬 3    📌 1
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Senate appropriators approve Labor-HHS bill with NIH bump The vote and lawmaker comments show that most senators aren't going along with the White House's proposed 40% budget cut to NIH.

BIG NEWS:

“Senate appropriators on Thursday approved an FY26 Labor-HHS bill that included a slight bump in funding for the NIH, with a strong 26–3 bipartisan vote.”

Thank you to members of the Senate Appropriations Committee on both sides of the aisle!

www.axios.com/pro/health-c...

31.07.2025 18:48 — 👍 113    🔁 26    💬 2    📌 1

“With these considerations, we expect to fund through the 4th percentile.”

There it is, in black and white, the destruction of cancer research in the US.

23.07.2025 22:21 — 👍 229    🔁 149    💬 15    📌 21
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Yes I believe so, although the announcement is not planned for a couple more months: grants.gov/search-resul...

22.07.2025 02:13 — 👍 1    🔁 0    💬 0    📌 0

New paper on transcription factor phase separation published from my colleague Aseem Ansari's and my lab: Reconciling competing models on the roles of condensates and soluble complexes in transcription factor function authors.elsevier.com/sd/article/S...

09.07.2025 04:12 — 👍 28    🔁 12    💬 1    📌 0
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Major Research Instrumentation (MRI) Program:

As someone who has greatly benefited from the NSF MRI program, I'm sad to see that the 2025 submission window was canceled. www.nsf.gov/funding/oppo...

02.07.2025 02:00 — 👍 30    🔁 26    💬 3    📌 13
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@jeremymberg.bsky.social to share to others - this is a forecasted NIGMS MIRA funding opportunity for established/new investigators as I know people have been asking (FOR-GM-27-002) - due date appears to be late Jan 2026: grants.gov/search-resul...

01.07.2025 19:07 — 👍 3    🔁 3    💬 0    📌 0
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a woman in a black and white dress is making a funny face . ALT: a woman in a black and white dress is making a funny face .

This morning, courageous NIH workers shared a document they are calling the “Bethesda Declaration” with Dr. Bhattacharya, urging him to reverse some of the actions that are badly misaligned with progress toward the NIH mission.

1/3

09.06.2025 11:59 — 👍 329    🔁 72    💬 1    📌 6
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There is no replacement (yet) for animal models in medical research The NIH is “reducing animal use in research.” But there is no replacement for animal models.

It is beyond disturbing when the NIH and HHS Directors do not understand that animal models are essential in research

www.statnews.com/2025/05/19/a...

19.05.2025 12:23 — 👍 122    🔁 50    💬 1    📌 2
Yiling Lan (left), Heidi Hehnly (centre) and Yan Wu (right) in the zebrafish room at Syracuse University.

Yiling Lan (left), Heidi Hehnly (centre) and Yan Wu (right) in the zebrafish room at Syracuse University.

To learn more about the story behind the paper, we caught up with first authors Yan Wu and Yiling Lan, and the corresponding author Heidi Hehnly @lovelessradio.bsky.social‬, an Associate Professor and Associate Director of the BioInspired Institute at @syracuseu.bsky.social

23.05.2025 07:44 — 👍 5    🔁 2    💬 0    📌 0
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This week in science: hawks hunting, infrared contacts and immunity through the day Berly McCoy and Regina Barber of Short Wave talk about a hawk's clever hunting strategy, contacts that allow wearers to see infrared light, and how immunity varies during the day.

Thanks to @npr.org and the Shortwave podcast for covering circadian research! It was very cool to be on the podcast and on All Things Considered. And Kudos to Chris Hall for the exciting work.

www.npr.org/2025/05/29/n...

www.npr.org/2025/05/30/1...

30.05.2025 12:43 — 👍 13    🔁 4    💬 0    📌 0

Fascinating new paper explaining why nucleoli have heterochromatin stacked around them.

24.05.2025 12:05 — 👍 8    🔁 3    💬 0    📌 0
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Active transport enables protein condensation in cells The force generated by active transport modulates protein condensation.

Biomolecular condensates are critical for organizing cellular contents, but most studies focus on phase separation driven by salt, pH, or temperature.
But what if intracellular movement also matters?
Here, we explore motility-induced condensation in the cell.
www.science.org/doi/10.1126/...

23.05.2025 18:28 — 👍 74    🔁 26    💬 3    📌 1

The power of collaborations! With @shaharsu.bsky.social, his PD @jessniblo.bsky.social and CALVADOS3 (thanks to @lindorfflarsen.bsky.social ) we show how STI1 (red) may engage with sequences that match transient helices within IDRs of Ub-binding shuttle protein Dsk2 www.biorxiv.org/content/10.1...

23.05.2025 13:18 — 👍 10    🔁 3    💬 0    📌 0
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Share Your “Why” In Support of a Strong National Institutes of Health United for Medical Research (UMR) is launching a campaign called "My Why" to highlight the critical role of NIH funding and its impact on the education and careers of researchers and scientists as wel...

Behind every cure, every breakthrough, every treatment — is someone who needed it.

If NIH funding helped you, your research, or someone you love, your story can help protect it.

Share your “why” and help defend the future of NIH & science.

Fill out the form here:
docs.google.com/forms/d/e/1F...

21.05.2025 13:31 — 👍 193    🔁 113    💬 1    📌 3

I'm optimistic a new FOA for EI MIRA investigators will come in due time; the PAR 22-180 one was originally scheduled to expire May 17 (the day after the regular May 16 EI MIRA deadline).

21.05.2025 16:10 — 👍 2    🔁 0    💬 0    📌 0
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Postdoc: De novo protein design for neuroscience - Ledig stilling på Aarhus Universitet Ledig stilling ved Institut for Molekylærbiologi og Genetik - Neurobiologi, Aarhus Universitet

🚨We have an opening for a postdoc to use protein design techniques to developing and characterizing binders against intrinsically disordered proteins involved in neuroscience.

Experience in protein biochemistry and/or molecular neuroscience preferred.

Share: 🙏

mbg.au.dk/aktuelt/ledi...

21.05.2025 12:04 — 👍 6    🔁 7    💬 0    📌 1

Hi @peiferlabunc.bsky.social , The EI MIRA (PAR 22-180) was originally scheduled to expire on May 17; I am optimistic that a new one is coming for the next EI MIRA submission cycle, which wouldn't be till January 2026 if following prior trends.

21.05.2025 00:42 — 👍 4    🔁 0    💬 0    📌 0

@castanedalab is following 20 prominent accounts