Projects per year
Abstract
Liquid extraction surface analysis (LESA) mass spectrometry is a promising tool for the analysis of intact proteins from biological substrates. Here, we demonstrate native LESA mass spectrometry of noncovalent protein complexes of myoglobin and hemoglobin from a range of surfaces. Holomyoglobin, in which apomyoglobin is noncovalently bound to the prosthetic heme group, was observed following LESA mass spectrometry of myoglobin dried onto glass and polyvinylidene fluoride surfaces. Tetrameric hemoglobin [(αβ)24H] was observed following LESA mass spectrometry of hemoglobin dried onto glass and polyvinylidene fluoride (PVDF) surfaces, and from dried blood spots (DBS) on filter paper. Heme-bound dimers and monomers were also observed. The 'contact' LESA approach was particularly suitable for the analysis of hemoglobin tetramers from DBS.
Original language | English |
---|---|
Pages (from-to) | 1320-1327 |
Number of pages | 8 |
Journal | Journal of the American Society for Mass Spectrometry |
Volume | 26 |
Issue number | 8 |
Early online date | 20 May 2015 |
DOIs | |
Publication status | Published - 1 Aug 2015 |
Keywords
- Native mass spectrometry
- Proteins
- Liquid extraction surface analysis
- LESA
- Liquid microjunction sampling
- Direct surface sampling
- Dried blood spots
Fingerprint
Dive into the research topics of 'Native liquid extraction surface analysis mass spectrometry: analysis of noncovalent protein complexes directly from dried substrates'. Together they form a unique fingerprint.Projects
- 2 Finished
-
NISA: Novel approaches for in situ analysis of biomolecules
Cooper, H. (Principal Investigator)
Engineering & Physical Science Research Council
1/06/14 → 31/05/19
Project: Research
-
Chemistry at Birmingham: a Response to the EPSRC Call: Core Capability for Chemistry Research
Simpkins, N. (Principal Investigator), Anderson, P. (Co-Investigator), Britton, M. (Co-Investigator), Bunch, J. (Co-Investigator), Preece, J. (Co-Investigator) & Slater, P. (Co-Investigator)
Engineering & Physical Science Research Council
1/01/13 → 31/03/13
Project: Research