
Advanced Native & Structural Mass Spectrometry Services for Complex Biomolecular Analysis

What we do
The C.T.M. mass-spectrometry laboratory specializes in offering creative structural and native mass-spectrometry solutions for intractable biological and biochemical puzzles, as an advanced high-level scientific service for biotech start-ups, hospitals and academic institutions.
Our Expertise

Advanced mass spectrometry data analysis, experimental design and high-level consulting

High resolution native mass spectrometry of intact large molecules (350 Da and above)
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Top-down fragmentation for extensive biomolecular characterization and analysis
Our favorite molecules

DNA and RNA oligomers

Synthetic and biological polydisperse polymers

Soluble and membrane proteins including different membrane mimetics

Large, multisubunit protein complexes, and their associated small molecules (Cofactors, drugs, lipids)
Our Instruments

Thermo Fisher Q-Exactive UHMR (Ultra High Mass Range)- A high- resolution, high-mass, orbitrap based instrument, designed for analysis of large molecules, in their intact and native state. The instrument is also equipped with Direct Mass Technology which allows for CDMS and analysis of single ions and large numbers of polydisperse populations.
Our Clients
Founders
Dror Chorev, Ph.D.- The laboratory’s chief scientific officer holds a Ph.D. in biochemistry from the Weizmann Institute of Science (IL) and did his post-doctoral training in the University of Oxford (UK). Dror has an extensive, cumulative 15 years experience in mass spectrometry, with IP and 20 peer reviewed works published in high-impact factor journals in the field of native MS.

Selected publications
01.
Chen S. Getter T., Salom D., Wu D., Quetschlich D., Chorev D.S.,* Palczewski K.,* Robinson C.V*. Capturing a rhodopsin signalling cascade across a native membrane. Nature 604, 384–390 (2022). *Corresponding authors.
02.
Chorev, D.S., and Robinson, C.V. The importance of the membrane for biophysical measurements. Nat Chem Biol 16, 1285–1292 (2020).
03.
Chorev D.S., Tang H., Rouse S.L., Bolla J.R., von Kügelgen A., Baker L.A., Wu D., Gault J., Grünewald K., Bharat A.M.T., Matthews S.J., and Robinson C.V. The use of sonicated lipid vesicles for mass spectrometry. Nat Protoc 15, 1690–1706 (2020).
04.
Chorev, D.S., Baker, L.A., Wu, D., Beilsten-Edmands, V., Rouse, S.L., Zeev-Ben-Mordehai, T., Jiko, C., Samsudin, F., Gerle, C., Khalid, S., et al. (2018). Protein assemblies ejected directly from native membranes yield complexes for mass spectrometry. Science 362, 829-834.
05.
Chorev, D.S., Moscovitz, O., Geiger, B., and Sharon, M. (2014). Regulation of focal adhesion formation by a vinculin-Arp2/3 hybrid complex. Nature communications 5, 3758.
06.
Chorev, D.S., Moscovitz, O., Geiger, B., and Sharon, M. (2014). Regulation of focal adhesion formation by a vinculin-Arp2/3 hybrid complex. Nature communications 5, 3758.
Contact Us
Address
3 Pinkhas Sapir Street
Ness-Tziona, Israel, 7403626







