Will Comstock, PhD
wjcomstock.bsky.social
Will Comstock, PhD
@wjcomstock.bsky.social
Proteomics Application Scientist at Thermo Fisher Scientific in San Jose
Reposted by Will Comstock, PhD
Check out our new biosensor technology to study DDR kinase signaling: ProKAS.

We combine:
-proteomics
-engineered peptide sensors
-a new concept of amino acid barcodes

ProKAS tracks kinase signaling with spatial resolution and produces highly quantitative data.

Just published today: rdcu.be/ePNo0
November 13, 2025 at 6:22 PM
Reposted by Will Comstock, PhD
Last day repping @smolka-lab.bsky.social with @wjcomstock.bsky.social at the 73nd(?) #ASMS2025! Had an awesome time—already excited for next year!
June 4, 2025 at 11:52 PM
My first-author paper on uncovering a non-canonical Tel1 motif using phosphoproteomics has been published in JBC! Amazing to work with @rainshj.bsky.social using both untargeted and targeted mass spectrometry. Check it out:
doi.org/10.1016/j.jb...
February 13, 2025 at 5:24 PM
Reposted by Will Comstock, PhD
Excited to share our preprint reporting a completely new approach to study kinase signaling: ProKAS.

ProKAS is based on a tandem array of peptide sensors with barcodes for multiplexed, spatial and kinetic applications.

We applied it to DDR kinases. Please share.

www.biorxiv.org/content/10.1...
December 17, 2024 at 2:10 PM
Reposted by Will Comstock, PhD
In this new paper we find that Tel1 kinase (yeast ATM) targets D/E-S/T motifs… more prevalent than S/T-Q!

Mec1 (yeast ATR) can’t target D/E-S/T, so we think D/E-S/T targeting allows Tel1 functional specialization.

A mutation in Tel1 makes it only target S/T-Q… and cells become CPT sensitive.
Profiling Tel1 Signaling Reveals a Non-Canonical Motif Targeting DNA Repair and Telomere Control Machineries
The stability of the genome relies on Phosphatidyl Inositol 3-Kinase-related Kinases (PIKKs) that sense DNA damage and trigger elaborate downstream si…
www.sciencedirect.com
January 21, 2025 at 3:36 PM