Nicolas Caramello
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ncaramel.bsky.social
Nicolas Caramello
@ncaramel.bsky.social
Postodoctoral researcher within the Synchrotron Group at the Institut de Biologie Structurale, Grenoble.
Time-resolved crystallograper with a particular interest in photochemistry and light signalling pathways.
XFEL and Synchrotron dweller.
Reposted by Nicolas Caramello
Thrilled to share our recent research with Laetitia Davidovic, investigating how p-cresol contributes to social deficits by modulating host catecholamine-biosynthesizing enzymes. A huge thank-you to the entire team for their exceptional work. Hope you enjoy it!
www.nature.com/articles/s42...
The autism-linked gut microbial metabolite p-cresol inhibits host catecholamine biosynthesizing enzymes to elicit social deficits - Communications Biology
The microbial metabolite p-cresol and p-cresol sulfate accumulate in brainstem and inhibit TH and DBH, key enzymes in catecholamine synthesis. This disruption alters brain function and behavior, ...
www.nature.com
November 22, 2025 at 7:05 PM
Reposted by Nicolas Caramello
#ResultatScientifique🔎| Saviez-vous que certaines protéines de notre corps règlent l’horloge biologique… et pourraient aussi aider les oiseaux à trouver leur chemin en plein vol ? 🦅
✍️ @antoineroyant.bsky.social
📕 Science Advances | buff.ly/xSpVhGC
Dans la structure des cryptochromes, le secret des horloges et boussoles biologiques
Les cryptochromes, protéines sensibles à la lumière bleue, règlent notre horloge biologique et pourraient aussi servir de boussole interne aux oiseaux m
buff.ly
September 15, 2025 at 4:00 PM
Reposted by Nicolas Caramello
Reposted by Nicolas Caramello
New paper about the slow maturation of the fluorescent protein mEos4b and how to improve it (onlinelibrary.wiley.com/doi/10.1002/...)
July 17, 2025 at 7:41 AM
Reposted by Nicolas Caramello
Revisiting the co-crystal structure of a DNA glycosylase with photocaged substrate: a suitable time-resolved crystallography target? doi.org/10.1107/S205...
Revisiting the co-crystal structure of a DNA glycosylase with photocaged substrate: a suitable time-resolved crystallography target?
Engineered in crystallo photosensitivity in a DNA-repair enzyme is carefully assessed for its suitability as a target for time-resolved crystallographic studies.
doi.org
July 15, 2025 at 1:39 AM
Reposted by Nicolas Caramello
Tomoki Imura et al.: Revisiting the co-crystal structure of a DNA glycosylase with photocaged substrate: a suitable time-resolved crystallography target? ##DNARepair##PhotocagedSubstrateAnaloga##HOgg1@osaka_univ_e...##IUCrhttps://journals.iucr.org/paper?S2052252525006062
Revisiting the co-crystal structure of a DNA glycosylase with photocaged substrate: a suitable time-resolved crystallography target?
Engineered in crystallo photosensitivity in a DNA-repair enzyme is carefully assessed for its suitability as a target for time-resolved crystallographic studies.
journals.iucr.org
July 15, 2025 at 12:01 AM
Reposted by Nicolas Caramello
CryoRhodopsins: A comprehensive characterization of a group of microbial rhodopsins from cold environments www.science.org/doi/10.1126/...
CryoRhodopsins: A comprehensive characterization of a group of microbial rhodopsins from cold environments
Spectroscopy, structural, and functional study of microbial rhodopsins with characteristic long-living near–UV-absorbing state.
www.science.org
July 6, 2025 at 2:06 AM
Reposted by Nicolas Caramello
EMBL Hamburg scientists have discovered a group of microbial cold-loving molecules, ‘cryorhodopsins’, with extraordinary abilities.

They are the first observed molecules that can act as both on and off switches for electrical activity in cells.
www.embl.org/news/science...
July 7, 2025 at 9:04 AM
I am very happy to report that our paper for the in crystallo optical spectroscopy toolbox, developed during my PhD, is out!
This is a graphical interface into which you can load UV-vis absorption and fluorescence spectra for baseline correction and analysis.
The in crystallo optical spectroscopy toolbox
The rise of time-resolved macromolecular crystallography has been accompanied by renewed interest in companion biophysical characterization methods applicable to molecules both in solution and in crys...
journals.iucr.org
June 3, 2025 at 7:37 PM
Reposted by Nicolas Caramello
High-resolution atomic structures of the late intermediate states of proteorhodopsin (MAR) by Prof. Gordeliy and his team! Congratulations!✨
www.science.org/doi/10.1126/...
#OpenAccess
Proteorhodopsin insights into the molecular mechanism of vectorial proton transport
Bacteria aptly use fundamental mechanisms for light-driven proton transfer across a membrane.
www.science.org
April 19, 2025 at 3:03 AM
Reposted by Nicolas Caramello
New paper about a python software to process spectra within protein crystals (journals.iucr.org/j/issues/202...)
June 1, 2025 at 11:58 AM
Reposted by Nicolas Caramello
Scientists unveil the mechanism of light-sensing proteins that regulate internal clock.

They used the TR-icOS instrument at the ESRF for spectroscopic characterization of the crystals.

www.esrf.fr/home/news/ge...
May 20, 2025 at 6:53 AM
Reposted by Nicolas Caramello
Congrats for publication!🥳🎉Capturing structural intermediates in an animal-like cryptochrome photoreceptor by time-resolved crystallography | Science Advances www.science.org/doi/10.1126/...
Capturing structural intermediates in an animal-like cryptochrome photoreceptor by time-resolved crystallography
Time-resolved crystallography unveils how light-driven chromophore reduction sparks dramatic structural change in a photoreceptor.
www.science.org
May 16, 2025 at 8:52 PM
At long last, our first article on the TR-SFX study of light signalling in a cryptochrome (the animal-like cryptochrome from C. rheinardtii) is finally out!

It features some of the most beautiful maps I have ever worked with and insight on the role of FAD protonation in committing CraCRY...
(1/3)
Capturing structural intermediates in an animal-like cryptochrome photoreceptor by time-resolved crystallography
Time-resolved crystallography unveils how light-driven chromophore reduction sparks dramatic structural change in a photoreceptor.
www.science.org
May 19, 2025 at 4:21 PM
Reposted by Nicolas Caramello
Check out this article to know more about the EBS flagship beamline ID29!
We are thrilled to introduce Serial Microsecond Crystallography at #ID29 at the @esrf.fr #EBS 4th generation synchrotron
In collaboration with @embl.org
Discover the advantages of the unique capabilities of ID29, from
Its microsecond pulses, repetition rate, bandwidth and low sample consumption.
www.nature.com
January 8, 2025 at 10:45 AM
Reposted by Nicolas Caramello
We are thrilled to introduce Serial Microsecond Crystallography at #ID29 at the @esrf.fr #EBS 4th generation synchrotron
In collaboration with @embl.org
Discover the advantages of the unique capabilities of ID29, from
Its microsecond pulses, repetition rate, bandwidth and low sample consumption.
www.nature.com
January 7, 2025 at 10:24 PM