Structure of the Chromatium sulfur particle and its protein membrane
- PMID: 4100832
- PMCID: PMC248545
- DOI: 10.1128/jb.105.3.1142-1148.1971
Structure of the Chromatium sulfur particle and its protein membrane
Abstract
Sulfur particles extracted from Chromatium vinosum strain D were found to be bounded by a unique proteinaceous membrane. Ultrastructural examination of the membrane in Epon sections and bovine serum albumin sections and examination of negatively stained, sulfur-free membrane ghosts revealed a monomolecular sheet composed of 2.5-nm globular components. The internal sulfur was found to bind large amounts of a variety of negative stains and to form myelin-like structures upon rupture of the surrounding membrane.
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