Drift time-specific collision energies enable deep-coverage data-independent acquisition proteomics
Article May 11, 2014
Ute Distler, Jörg Kuharev, Pedro Navarro, Yishai Levin, Hansjörg Schild, Stefan Tenzer
Abstract: We present a data-independent acquisition mass spectrometry method, ultradefinition (UD) MSE. This approach utilizes ion mobility drift time-specific collision-energy profiles to enhance precursor fragmentation efficiency over current MSE and high-definition (HD) MSE data-independent acquisition techniques. UDMSE provided high reproducibility and substantially improved proteome coverage of the HeLa cell proteome compared to previous implementations of MSE, and it also outperformed a state-of-the-art data-dependent acquisition workflow. Additionally, we report a software tool, ISOQuant, for processing label-free quantitative UDMSE data.
New Crystal Structure of (Ph)PINK1 Aids Understanding of Early Onset Parkinson’sArticle
Scientists have determined the crystal structure of PhPINK1 bound to it's substrate ubiquitin. Mutations of PINK1 are associated with early onset Parkinson's disease and it is expected that this information will help the design of Parkinson's therapeutics.READ MORE