Redox biology/ biochemistry researcher. Views are my own. [email protected]
Aberdeen, Scotland
Joined April 2014
- Tweets3.4K
- Following709
- Followers831
- Likes1.8K
Pinned Tweet
Modal Geometry Governs Proteoform Dynamics arxiv.org/abs/2508.20004
James Cobley retweeted
Means everyone can now get the full package for proteomics from Thermo: the MS + Evosep + DIA-NN!
Today, Evosep announced a new reseller agreement with Thermo Fisher Scientific, through which Thermo Fisher Scientific will offer the Evosep Eno separation platform as part of its mass spectrometry solutions portfolio.
Read the press release here: evosep.com/wp-content/upload…
James Cobley retweeted
Can AI take proteomics to a virtual cell? Our new perspective maps the path — from better peptide/protein ID to spatial & perturbation proteomics to AI Virtual Cells — and calls for an AI-friendly data ecosystem to get there. @guomics and Zhang lab.
nature.com/articles/s41592-0…
James Cobley retweeted
Maths should match biology.
Using ageing-brain redox dataset, this paper shows how tiny shifts in average oxidation can hide major proteome reorganisation.
Even outside computational biology, its ideas may change how you think about (redox) biology.
cell.com/patterns/fulltext/S…
And the preprint link is biorxiv.org/content/10.64898…
CysNet for oxiform inference from peptide level redox proteomics data is available now github.com/JamesCobley/CysNe… the preprint is to follow
James Cobley retweeted
CysNet for oxiform inference from peptide level redox proteomics data is available now github.com/JamesCobley/CysNe… the preprint is to follow
CysNet for oxiform inference from peptide level redox proteomics data is available now github.com/JamesCobley/CysNe… the preprint is to follow
James Cobley retweeted
We preprinted a method of measuring phosphosite stoichimetries (occupancies) in just two mass spectrometry acquisitions, using internal stable isotope labelled controls.
In fact, we measure phospho stoichiometries in two ways, using dephosphorylation and using known relative ionisation efficiencies of phosphopeptides, compared to their unmodified forms: the measurements correlate well. In either case, estimates are well below on average compared to what was reported in some previous works. Link in comments below.
James Cobley retweeted
Our machine learning driven quantification algorithm for proteomics now published in Nature Biotechnology. Optimal protein quantification and, for the first time, error estimates for individual quantities. Paper link in comments below.
James Cobley retweeted
QuantUMS is the default method in our DIA-NN software.
nature.com/articles/s41587-0…
Cleland immunoblotting can be used to quantify cysteine proteoform ensembles sciencedirect.com/science/ar…
James Cobley retweeted
We are delighted to present DIA-NN 2.5. Redefining LC-MS proteomics with up to 70% more proteins identified and powerful capabilities for statistics, visualisation and biological interpretation.
James Cobley retweeted
Nature Aging published a great piece presenting perspectives on the aging field from ~30 leading experts. Few areas of research make it as challenging to separate good science from hype as aging, which makes this article particularly valuable:
nature.com/articles/s43587-0…
James Cobley retweeted
Biology isn’t just chemistry, it’s geometry in motion.
This new Nature Biotech work shows that when we change the envelope geometry of a delivery particle, the efficiency of gene transfer into stem cells shifts dramatically.
In VFD, this is expected:
Geometry → Field Coherence → Cellular Response.
Cells don’t react to molecules alone, they react to harmonic structure.
When the geometry aligns, the information flows.
VFD-BioSim models this directly, connecting φ-geometry, torsion, and receptor coherence into a unified biological framework.
The closer biology moves toward geometry,
the clearer the deeper mechanism becomes.
@NatureBiotech @Nature
#VFD #BioSim #GeometryOfLife #GeneEditing #Biotech
@drmichaellevin @StuartHameroff
In vivo gene editing of human hematopoietic stem and progenitor cells using envelope-engineered virus-like particles go.nature.com/4a39S6X
James Cobley retweeted
We acquired a large-scale mixed-species benchmark, with variable background, to comprehensively assess quantitative accuracy of proteomics.
Key features:
- 192 runs, 0.75ng - 15ng of variable human cell line backgroud.
- Can dissect the impact of both random and systematic errors.
- Can test how quantitation algorithms scale with experiment size and sample heterogeneity.
Our insights based on the data: biorxiv.org/content/10.64898….
PRIDE repo will be made public in the next days.
James Cobley retweeted
Solving the computational challenge of phosphoproteomics with 𝐏𝐡𝐨-𝐓𝐢𝐩: dephosphorylation on-tip identifies the sequences of phosphorylated peptides.
This serves as a basis for predicted spectral libraries, reducing the search space 10x-20x. biorxiv.org/content/10.1101/…
James Cobley retweeted
Is “oxidative stress” a useful concept in biology?
In this work, led by Nikos, we argue that the term “oxidative stress” is devoid of biological meaning and, even worse, misleading.
Our new paper out in @TrendsMolecMed
“Science captured by storytelling: the oxidative stress narrative”
DOI: authors.elsevier.com/a/1lt2w…
James Cobley retweeted
If you believe that the current framework of redox biology (oxidative stress/redox signalling) is vague, then the approach introduced in this paper offers a geometric/physical basis for how redox modifications (cysteine oxidation) happen, interact, and shape biological outcomes.
Modal Geometry Governs Proteoform Dynamics arxiv.org/abs/2508.20004
James Cobley retweeted
Was a great pleasure to contribute to this work pubs.acs.org/doi/10.1021/jas…. DIA-NN release with support soon.
James Cobley retweeted
A prevailing idea in exercise physiology seems to be that the only erythrocyte factor affecting performance is hematocrit and hemoglobin levels.
Is it really that simple?
1/3
Is the erythrocyte a simple cell that just passively carries oxygen during exercise? NO.
In our new study in @SportsMedicineJ with @dalessandrolab we show that erythrocyte energy and redox metabolism affects muscle oxygenation and exercise performance.
link.springer.com/article/10…
