Abstract
Aqueous polymer two-phase partitioning in combination with sucrose density centrifugation offered, for the first time, a 2D-separation method for the isolation of pure plasma and thylakoid membranes from the cyanobacterium Synechocystis 6803 without any cross-contaminations. The purity of the membrane fractions was verified by immunoblot analysis using antibodies against membrane-specific marker proteins. As an initiation of a proteomics project, two prominent proteins, which were observed only in the plasma membrane (Slr1513, a hypothetical protein, and HofG, a general secretion pathway protein), or in the thylakoid membrane (PsaE, a photosystem I protein, and NdhH, a subunit of NADH dehydrogenase), were identified. Copyright (C) 1998 Federation of European Biochemical Societies.
| Original language | English |
|---|---|
| Pages (from-to) | 189-192 |
| Number of pages | 4 |
| Journal | FEBS Letters |
| Volume | 436 |
| Issue number | 2 |
| DOIs | |
| State | Published - Oct 2 1998 |
Keywords
- Cyanobacterium
- Membrane protein
- Phase partitioning
- Proteomics
- Synechocystis 6803