Investigating the adduct formation of organic mercury species with carbonic anhydrase and hemoglobin from human red blood cell hemolysate by means of LC/ESI-TOF-MS and LC/ICP-MS
Hogeback J., Schwarzer M., Wehe C., Sperling M., Karst U.
Research article (journal) | Peer reviewedAbstract
The interaction of mercury species with human erythrocytes is studied to investigate possible high molecular binding partners for mercury species. Human blood hemolysate was spiked with methylmercury and investigated by means of liquid chromatography (LC) coupled to electrospray ionization time of flight mass spectrometry (ESI-ToF-MS) and inductively coupled plasma mass spectrometry (ICP-MS). Beside adduct formation of mercury species with hemoglobin, the main compound of the erythrocytes, mercury binding to the enzyme carbonic anhydrase was revealed. Due to an enzymatic digest of the protein-mercury adduct, the binding site at the free thiol group of the protein was identified. These results indicate that carbonic anhydrase might play a role in mercury toxicity.
Details about the publication
Authors from the University of Münster
| Karst, Uwe | Professur für Analytische Chemie (Prof. Karst) |
| Sperling, Michael | Professur für Analytische Chemie (Prof. Karst) |
Promotionen, aus denen die Publikation resultiert
| Mercury Speciation Analysis: Interaction with Blood Proteins and Spatial Microanalysis in Cells Candidate: Hogeback, Jens | Supervisors: Karst, Uwe; Schwerdtle, Tanja Period of time: 01/11/2012 - 31/12/2015 Doctoral examination procedure finished at: Doctoral examination procedure at University of Münster |