PXD047719
PXD047719 is an original dataset announced via ProteomeXchange.
Dataset Summary
| Title | Native Top-Down Mass Spectrometry for Characterizing Sarcomeric Proteins Directly from Cardiac Tissue Lysate |
| Description | Native top-down mass spectrometry is a powerful structural biology tool that can localize post-translational modifications, explore ligand-binding interactions, and elucidate the three-dimensional structure of proteins and protein complexes in the gas-phase. Fourier-transform ion cyclotron resonance-MS offers distinct capabilities for nTDMS, owing to its ultra-high resolving power, mass accuracy, and robust fragmentation techniques. Previous nTDMS studies using FTICR have mainly applied to over-expressed recombinant proteins and protein complexes. Here, we report the first nTDMS study that directly analyzes human heart tissue lysate by direct infusion FTICR-MS without prior chromatographic separation strategies. We have achieved comprehensive nTDMS characterization of cardiac contractile proteins that play critical roles in heart contraction and relaxation. Specifically, our results reveal structural insights into ventricular myosin light chain 2, ventricular myosin light chain 1, and alpha-tropomyosin in the sarcomere, the basic contractile unit of cardiac muscle. Furthermore, we localize the calcium binding domain in MLC-2v. In summary, our nTDMS platform extends the application of FTICR-MS to directly characterize the structure, PTMs, and metal-binding of endogenous proteins from heart tissue lysate without prior separation methods. |
| HostingRepository | MassIVE |
| AnnounceDate | 2024-03-13 |
| AnnouncementXML | Submission_2024-03-13_07:18:11.946.xml |
| DigitalObjectIdentifier | |
| ReviewLevel | Non peer-reviewed dataset |
| DatasetOrigin | Original dataset |
| RepositorySupport | Unsupported dataset by repository |
| PrimarySubmitter | Emily Chapman |
| SpeciesList | scientific name: Homo sapiens; common name: human; NCBI TaxID: 9606; |
| ModificationList | Trimethyl; Phospho; Acetyl |
| Instrument | instrument model |
Dataset History
| Revision | Datetime | Status | ChangeLog Entry |
|---|---|---|---|
| 0 | 2023-12-11 08:51:07 | ID requested | |
| ⏵ 1 | 2024-03-13 07:18:12 | announced |
Publication List
| no publication |
Keyword List
| submitter keyword: Native top-down, cardiac, FTICR, endogenous, structural biology |
Contact List
| Ying Ge | |
|---|---|
| contact affiliation | University of Wisconsin - Madison |
| contact email | ying.ge@wisc.edu |
| lab head | |
| Emily Chapman | |
| contact affiliation | University of Wisconsin - Madison |
| contact email | eachapman2@wisc.edu |
| dataset submitter | |
Full Dataset Link List
| MassIVE dataset URI |
| Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://massive.ucsd.edu/v06/MSV000093633/ |
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