ArticleCurrent microbiology2015
Disulfide Bonds of Proteins Displayed on Spores of Bacillus subtilis Can Occur Spontaneously.
Article in Current microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 8 citations in OpenAlex.
- Decolorization of Textile Dye by Spore Surface Displayed Small Laccase for the Enhanced Thermal Stability and Robust Repeated Reaction.Biotechnology and bioprocess engineering : BBE · 2022Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Surface display using spores of Bacillus subtilis is widely used to anchor antigens and enzymes of different sources. One open question is whether anchored proteins are able to form disulfide bonds. To answer this important question, we anchored the Escherichia coli alkaline phosphatase PhoA on the spore surface using two different surface proteins, CotB and CotZ. This enzyme needs two disulfide bonds to become active. Subsequently, we purified the spores and assayed for alkaline phosphatase activity. In both cases, we were able to recover enzymatic activity. Next, we asked whether formation of disulfide bonds occurs spontaneous or is catalyzed by thiol-disulfide oxidoreductases upon lysis of the cells. The experiment was repeated in a double-knockout mutant ΔbdbC and ΔbdbD. Since the disulfide bonds are also present on spores prepared from the double knockout, we conclude that oxidative environment after cell lysis is sufficient for disulfide formation of alkaline phosphatase.
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