Gary Siuzdak
siuzdak.bsky.social
Gary Siuzdak
@siuzdak.bsky.social
Scientist, heal thyself. Designing #METLIN & #XCMS to identify active natural products, lipids, metabolites, drugs… https://doi.org/10.1038/s41580-019-0108-4
Quantitative Systems Pharmacology (QSP)
Clear, authoritative overview from PK/PD & mechanistic models to AI and regulatory use. A landmark resource for QSP, PK/PD, and translational modeling Erica Bradshaw & @Mary_Spilker

Amazon: a.co/d/fZfZBSW
link.springer.com/book/10.1007...
November 10, 2025 at 10:56 PM
In response to the multiple requests on how MRM generation works (without standards) from the MS/MS data, here it is step by step.
Analytical Chemistry (open access article)
doi.org/10.1021/acs....
November 1, 2025 at 1:59 PM
MRM generation using adaptive modeling of tandem MS data. A simple concept that allows for MRM analysis without the need for standards.
• Especially useful for preclinical metabolites, that have no standards.
Analytical Chemistry (open access article)
pubs.acs.org/doi/10.1021/...
October 30, 2025 at 1:35 PM
Lipidomics (& #METLIN) reveal a metabolic vulnerability in tumors @Nature doi.org/10.1038/s415...

Tumors don’t just synthesize their own lipids—they scavenge antioxidant-rich lipoproteins. @JaviGBermudez with our lab's lipidomics uncover how this can be used to impair tumor growth
June 17, 2025 at 8:20 PM
An AI BioSync rendition of METLIN 960K as a dot matrix. Celebrating the creation of METLIN with 960,000 molecular standards, and going live in its original classic form - reengineered.

🔗 Sign in for access: metlin.scripps.edu/auth-login.h...

📖 Read more: DOI: 10.1002/ansa.70012
May 30, 2025 at 1:39 PM
Unexpected growth on the #METLIN front, now reaching 960K molecular standards with MS/MS natural product additions. 960K METLIN currently available online via XCMS-METLIN. xcmsonline.scripps.edu
@Molsystbio doi.org/10.1038/s443...
April 4, 2025 at 1:22 PM
“Because they wouldn’t let me give it away”

my answer when people ask why did I not publish AMMS with a publishing house.

Free PDF at Scripps Research:
masspec.scripps.edu/about/mass-s...

Royalty-free print version at Amazon ($15.08):
a.co/d/8dEWO8a
February 3, 2025 at 12:17 AM
The central message behind our two recent papers in @NatMetabolism @MolSystBiol

•• If you can’t identify it with XCMS-METLIN,
highly likely it is ISF (in-source fragmentation) ••

Both papers are open access
www.nature.com/articles/s42...
www.embopress.org/doi/full/10....
December 4, 2024 at 3:57 PM
The simplicity of precursor ion filtering combined with MS/MS matching to deconvolve data on XCMS-METLIN's 935K+ molecular standards @MolSystBiol doi.org/10.1038/s443...
XCMS-METLIN local now available at massconsortium.com
November 26, 2024 at 10:44 PM
Twenty years in the making, the #XCMS-METLIN integrated platform is now available with the complete #METLIN MS/MS 935K+ molecular standards database.
Available as a local version on your own personal computer.
For information visit massconsortium.com
November 22, 2024 at 7:16 PM