Preprint Article Version 1 This version is not peer-reviewed

Synthesis and Characterization of Recombinant Gelsolin 1-3 for Use in the Detection of Lysophosphatidic Acid, a Possible Ovarian Cancer Biomarker

Version 1 : Received: 18 July 2024 / Approved: 19 July 2024 / Online: 19 July 2024 (10:52:36 CEST)

How to cite: Lotay, N.; Suarez, C. M.; Franier, B. D. L.; Jockusch, R. A.; Thompson, M. Synthesis and Characterization of Recombinant Gelsolin 1-3 for Use in the Detection of Lysophosphatidic Acid, a Possible Ovarian Cancer Biomarker. Preprints 2024, 2024071589. https://doi.org/10.20944/preprints202407.1589.v1 Lotay, N.; Suarez, C. M.; Franier, B. D. L.; Jockusch, R. A.; Thompson, M. Synthesis and Characterization of Recombinant Gelsolin 1-3 for Use in the Detection of Lysophosphatidic Acid, a Possible Ovarian Cancer Biomarker. Preprints 2024, 2024071589. https://doi.org/10.20944/preprints202407.1589.v1

Abstract

Gelsolin is an actin-binding protein that is competitively bound by lysophosphatidic acid (LPA), a possible biomarker for the early detection of ovarian cancer. Our group has previously shown the usage of gelsolin 1-3 (a fragment of gelsolin composed of the first three of its six subdomains) along with actin to detect the presence of lysophosphatidic acid. This histidine-tagged gelsolin 1-3 fragment is synthesized in our lab using bl21 Rosetta cells but required further characterization. This study aims to provide sufficient characterization of gelsolin 1-3 synthesized in our lab via both sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and mass spectrometry using a Fourier-transform ion cyclotron resonance mass spectrometer (FTICR-MS). Both techniques show the presence of protein at the expected mass of approximately 41 kDa. Additionally, the dissociation of a smaller fragment of the complex when introduced into the gas phase which was equivalent to the approximate mass of one subdomain of gelsolin 1-3 further supports this conclusion.

Keywords

gelsolin; SDS-PAGE; FTICR-MS; mass spectrometry; protein characterization

Subject

Biology and Life Sciences, Life Sciences

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.