Luke Gamon
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lgamon.bsky.social
Luke Gamon
@lgamon.bsky.social
All things teammassspec/realtimechem. Survives on only the fanciest coffee and beer.

Laser capture microdissection | spatial proteomics | protein modification | atherosclerosis | inflammation and oxidation
I’m still a pseudo-PI and definitely winging it but the EMBO courses come highly recommended:

www.embolableadership.org
Home - EMBO Lab Leadership
www.embolableadership.org
November 11, 2025 at 8:01 AM
Now that would be an absolute steal
November 11, 2025 at 7:53 AM
Yeah no way is that just an astral 😅
November 11, 2025 at 6:59 AM
DUDE!!! Absolutely epic! Congratulations my friend 👏
November 7, 2025 at 6:13 AM
Try €500 for a Dionex syringe 🤯 Very happy with a substitute from a german supplier that is €100 a pop.
October 30, 2025 at 6:31 PM
Not at all. The next comment seemed to be a complete misunderstanding of the proposal. A few fair criticisms like mice ≠ people but TBH that’s a bit of a low blow too.

At least reviewer 2 said it was a major improvement on the previous submission.
October 30, 2025 at 1:22 PM
Sure - there will be considerable artefactual protein degradation in any laser capture experiment - but we and others have shown conclusively there is plenty of biological insight to be obtained even with these limitations.
October 30, 2025 at 1:16 PM
There’s a discussion on the GitHub about DIANN support being ‘experimental’ but seems to work well for everything we’ve used it for so far. At least I like that you can have differential detection in the model rather than relying on a janky UpSet plot.
October 29, 2025 at 6:43 PM
Ha whoops partially my fault. Great tool which extends MSqRob for modeling both differential abundance and differential detection. They have some nice examples in the supp into for each case compared to imputation, standard MSqRob etc

pubs.acs.org/doi/10.1021/...
MSqRob Takes the Missing Hurdle: Uniting Intensity- and Count-Based Proteomics
Missing values are a major issue in quantitative data-dependent mass spectrometry-based proteomics. We therefore present an innovative solution to this key issue by introducing a hurdle model, which is a mixture between a binomial peptide count and a peptide intensity-based model component. It enables dramatically enhanced quantification of proteins with many missing values without having to resort to harmful assumptions for missingness. We demonstrate the superior performance of our method by comparing it with state-of-the-art methods in the field.
pubs.acs.org
October 29, 2025 at 6:36 PM
Oh very cool! We are doing a lot of msqrob and mqrobhurdle workflows these days
October 29, 2025 at 4:57 AM
Nice video by the way!
October 28, 2025 at 6:41 PM
In terms of user-friendly-ness how do you think it compares to something like DIA-Analyst? We do mostly custom R scripts because of complicated experimental designs and visualisations but I often send collaborators with standard differential expression straight to Frapipe- or DIA-Analyst.
October 28, 2025 at 6:41 PM
I love how it always says ‘would you like me to make an overview or workflow figure’ as if it’s not going to hallucinate absolute BS
October 28, 2025 at 6:38 PM
Figured that was the case. Thanks for clarifying!
October 25, 2025 at 7:13 PM
So let’s say there is a peptide which is present in a 50:50 ratio at two different RT, gives almost identical MSMS, but doesn’t have a delta mass for PTM localisation, DIANN is unlikely to ID it and report it?
October 25, 2025 at 5:20 PM
What if I’m looking for isobaric isomers that don’t have a localised PTM delta mass (specifically, IsoAsp which has different RT and slightly different IM)?
October 25, 2025 at 5:06 PM
Can you get DIANN to report cases with multiple precursor IDs (ie same m/z) with differential RTs?
October 25, 2025 at 4:28 PM
I definitely don’t have the perfect answer… still… do what works?
October 24, 2025 at 6:18 PM
Yup 100% agree with this. I mostly remove as many contaminants derived peptides as possible (huge problem as you know for spatial/single cell!) then do vsn normalisation. Default normalisation is incredible for A/B treated bulk cell lysate though.
October 24, 2025 at 6:17 PM