Icosahedral inclusions (carboxysomes) of Nitrobacter agilis
- PMID: 199579
- PMCID: PMC221910
- DOI: 10.1128/jb.132.2.673-675.1977
Icosahedral inclusions (carboxysomes) of Nitrobacter agilis
Abstract
The icosahedral bodies of Nitrobacter agilis are about 120 nm in diameter and, as viewed by electron microscopy, consist of an outer shell enclosing 10-nm particles. The inner 10-nm particle is the enzyme D-ribulose 1,5-bisphosphate carboxylase. The bodies isolated from cells incubated 1 month without nitrite had a specific activity for the enzyme of 0.54 mu mol of CO2 fixed per min per mg of protein.
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