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Mark van Raaij

@markvanraaij

Structural biologist, virus proteins, bacteriophages, expresser and purifier, crystallisation, macromolecular crystallography, one of the main editors of Acta Cryst F.

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15.09.2023
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Latest posts by Mark van Raaij @markvanraaij

A masterpiece from Mathieu Van der Poel πŸš€ #shorts #cycling
A masterpiece from Mathieu Van der Poel πŸš€ #shorts #cycling YouTube video by Velon

youtube.com/shorts/ivS-Y...

12.03.2026 22:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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NOTICIA DEL DÍA EN GALICIA | Los nietos de Franco tendrÑn que devolver el pazo de MeirÑs (provincia de A Coruña) al Estado. El Tribunal Supremo confirma que el pazo de MeirÑs pertenece al Estado y no a la familia del dictador Franco, mÑxima autoridad en momentos de mÑxima oscuridad.

12.03.2026 13:03 πŸ‘ 5 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0
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Wordle Galego - Un xogo de palabras diario AdiviΓ±a a palabra oculta en 6 intentos. Unha nova palabra cada dΓ­a.

Wordle (#galego) #400 3/6

⬜⬜🟨⬜⬜
⬜⬜🟩🟩🟩
🟩🟩🟩🟩🟩

#WordleGalego
wordlegalego.appspot.com

08.03.2026 17:43 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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04.03.2026 19:24 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1
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Crystal structure of endo-Ξ²-N-acetylglucosaminidase HSΞ± Structural analysis of the GH85 enzyme endo-Ξ²-N-acetylglucosaminidase HSΞ± reveals a novel domain that is potentially involved in complex N-glycan recognition.

Ikuya Kurauchi et al.: Crystal structure of endo-Ξ²-N-acetylglucosaminidase HSΞ± #EndoNAcetylglucosaminidases #GH85 #ComplexNGlycans ... #IUCr https://journals.iucr.org/paper?S2053230X26001214

04.03.2026 01:00 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Wordle Galego - Un xogo de palabras diario AdiviΓ±a a palabra oculta en 6 intentos. Unha nova palabra cada dΓ­a.

Wordle (#galego) #393 5/6

⬜⬜⬜🟨⬜
⬜⬜🟨🟨🟩
⬜🟩🟩🟩🟩
⬜🟩🟩🟩🟩
🟩🟩🟩🟩🟩

#WordleGalego
wordlegalego.appspot.com

01.03.2026 09:23 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Twitter: Last Week Tonight with John Oliver (HBO)
Twitter: Last Week Tonight with John Oliver (HBO) YouTube video by LastWeekTonight

Please leave Twitter / X
youtu.be/p7ZG_xWYLzI?...

25.02.2026 17:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

You must be one of the few scientists who is up-to-date enough on their reading for this to matter :-)

25.02.2026 13:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Just go straight to the source from now on
Just go straight to the source from now on YouTube video by Watchful

youtube.com/shorts/Nn56f...

24.02.2026 21:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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β€˜Don’t go to the US – not with Trump in charge’: the UK tourist with a valid visa detained by ICE for six weeks Karen Newton was in America on the trip of a lifetime when she was shackled, transported and held for weeks on end. With tourism to the US under increasing strain, she says, β€˜If it can happen to me, i...

A retired British primary school administrator with a British passport and a valid visa was shackled, chained and detained for six weeks by ICE

www.theguardian.com/us-news/2026...

21.02.2026 06:54 πŸ‘ 7238 πŸ” 4208 πŸ’¬ 249 πŸ“Œ 631
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This structure of a tRNA acceptor-stem mimic demonstrates the use of bromine and phosphorus anomalous scattering for RNA structure determination #Crystallography #AnomalousScattering #NucleicAcids doi.org/10.1107/S205...

19.02.2026 16:20 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Scientists have seen Asgard archaea crawling for the first time. When it comes to the origin of eukaryotes, this is like seeing a feathered dinosaur in the wild. (Video courtesy of Philipp Ralder)

18.02.2026 20:09 πŸ‘ 470 πŸ” 136 πŸ’¬ 10 πŸ“Œ 19
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Sample preparation from Ξ±- and Ξ²-crustacyanin pigments purified from ex vivo material from the American lobster Homarus americanus for X-ray crystallography and cryo-electron microscopy studies #Astaxanthin #Crustacyanin #Absorption doi.org/10.1107/S205...

18.02.2026 14:27 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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QuitGPT β€” OpenAI Execs are Trump's Biggest Donors Join the movement. Delete ChatGPT. Cancel your subscription. It's time to quit.

Je viens de rejoindre le boycott @quitgpt. Le prΓ©sident d'OpenAI Γ©tait le plus gros donateur dans le dernier rapport du Super PAC de Trump. Il est temps d'arrΓͺter. Rejoignez-nous : quitgpt.org // #QuitGPT

16.02.2026 20:56 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Potential 14-3-3 binding sites in sirtuins were identfied and the interactions of peptides representing phosphorylation sites in sirtuin 3 and sirtuin 1 with 14-3-3 proteins were characterized #Sirtuin #Phosphopeptides #Regulation doi.org/10.1107/S205...

16.02.2026 14:47 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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I knew I saw this somewhere before. Funny that it’s almost exactly what’s actually happening now.

14.02.2026 14:33 πŸ‘ 7242 πŸ” 3782 πŸ’¬ 300 πŸ“Œ 557

Now, this is officially a problem. MSCA fellowships need to be competitive, but it cannot be a lottery. Time to focus on the core mission of supporting science and ditching all vanity initiatives in the Horizon Europe program. (Looking at ERC super-grants...)

09.02.2026 10:04 πŸ‘ 15 πŸ” 5 πŸ’¬ 2 πŸ“Œ 0

hate to be that guy, but today brings yet another reminder of why everyone should stop posting on the elon musk platform

30.01.2026 22:05 πŸ‘ 425 πŸ” 68 πŸ’¬ 5 πŸ“Œ 1
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Acta Crystallographica Section B welcomes three new Co-editors The newest three members of the Editorial Board of Acta Crystallographica Section B are introduced.

D​awe, Katrusiak, Nangia and Berry: Acta Crystallographica Section B welcomes three new Co-editors #CoEditors #StructuralScience #CrystalEngineering @Laurier...#IUCr https://journals.iucr.org/paper?S2052520626000685

30.01.2026 01:00 πŸ‘ 5 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

Dear colleagues in science - it is time to stop normalising the emerging fascism of the US by attending conferences there as though everything is fine.

25.01.2026 10:15 πŸ‘ 44 πŸ” 15 πŸ’¬ 8 πŸ“Œ 3
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Ella Baron on Keir Starmer, Donald Trump and social media bans – cartoon UK ministers have launched a consultation into whether to ban under-16s from using social media

www.theguardian.com/commentisfre...

21.01.2026 00:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Sample purification and characterization of the Ξ±- and Ξ²-crustacyanin pigments from the American lobster for crystallographic and cryo-EM studies The striking blue colour of the American lobster is caused by proteins that interact with the red pigment astaxanthin, causing its colour change. We have purified and characterized the pigments from the American lobster for crystallographic and cryo-EM studies.

M​aria Claudia Cedri et al.: Sample purification and characterization of the Ξ±- and Ξ²-crustacyanin pigments from the American lobster for crystallographic and cryo-EM studies #Astaxanthin #Crustacyanin #Absorption ... #IUCr https://journals.iucr.org/paper?S2053230X2600018X

16.01.2026 01:00 πŸ‘ 3 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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SΓ‘nchez no llega a fin de mes AlgΓΊn dΓ­a, con la izquierda ya muy lejos del poder, miraremos con perspectiva este tiempo gris en el que todo podΓ­a dar igual, excepto cuidar a la gente

"SΓ‘nchez no llega a fin de mes".

Mi columna de hoy en CTXT sobre el PSOE y la vivienda.

ctxt.es/es/20260101/...

13.01.2026 20:52 πŸ‘ 131 πŸ” 55 πŸ’¬ 6 πŸ“Œ 4
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Scott Adams, β€˜Dilbert’ creator, has died | CNN Scott Adams, the creator of the popular comic strip β€œDilbert,” has died.

edition.cnn.com/2026/01/13/e...

13.01.2026 18:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Uruguay’s Renewable Charge: A Small Nation, A Big Lesson For The World Uruguay built a power grid that runs 99% on renewablesβ€”at half the cost of fossil fuels. Here’s how its bold energy overhaul became a global model.

www.forbes.com/sites/kensil...

10.01.2026 13:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Last Year, and the Year to Come

First Pipeline post of the year! A statement of purpose, and science topics resume on Monday:

02.01.2026 16:45 πŸ‘ 128 πŸ” 40 πŸ’¬ 6 πŸ“Œ 14
If we give rich people more money...
If we give rich people more money... YouTube video by christophertitustv

youtube.com/shorts/Zt1Ru...

31.12.2025 00:35 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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30.12.2025 08:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Analysis: Donald Trump’s top 25 lies of 2025 | CNN Politics It was hard to pick only 25. But it was easier than it used to be.

edition.cnn.com/2025/12/27/p...

29.12.2025 21:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Parece que el flamante premio FIFA de la paz va empezar una guerra

17.12.2025 09:48 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0