On-line coupling of gel electrophoresis (GE) and inductively coupled plasma-mass spectrometry (ICP-MS) for the detection of Fe in metalloproteins
| Autor: | Jiirgen Messerschmidt, Ingo Feldmann, Norbert Jakubowski, Marta Garijo Añorbe |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Gel electrophoresis
chemistry.chemical_classification Chromatography biology Chemistry Cytochrome c Analytical chemistry Gel electrophoresis of proteins Analytical Chemistry Ferritin Isoelectric point Transferrin biology.protein Metalloprotein Inductively coupled plasma mass spectrometry Spectroscopy |
| Zdroj: | J. Anal. At. Spectrom.. 22:917-924 |
| ISSN: | 1364-5544 0267-9477 |
| DOI: | 10.1039/b704541g |
| Popis: | In this paper, we have coupled on-line gel electrophoresis to ICP-MS to investigate the separation of iron containing proteins (cytochrome C, haemoglobin, transferrin and ferritin). The GE system has been operated with quite different conditions, using (a) sodium dodecylsulfate (SDS) for charging and denaturing proteins and (b) using native conditions below and above the isoelectric point resulting in anodal and cathodal separations. The loss of the iron metal under each condition is discussed, so that quantification cannot be applied in each mode. For this purpose the ratio of 56Fe+ to 32S+ was additionally measured. |
| Databáze: | OpenAIRE |
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