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Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis
As a potent, pleiotropic regulatory protein in Gram-positive bacteria, catabolite control protein A (CcpA) mediates the transcriptional control of carbohydrate metabolism in Streptococcus bovis, a lactate-producing bacterium that plays an essential role in rumen acidosis in dairy cows. Although the...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Society for Microbiology
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10617382/ https://www.ncbi.nlm.nih.gov/pubmed/37823652 http://dx.doi.org/10.1128/aem.00474-23 |
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author | Zhao, Xiujuan Zhang, Ying He, Banglin Han, Yu Shen, Ben Zang, Yu Wang, Hongrong |
author_facet | Zhao, Xiujuan Zhang, Ying He, Banglin Han, Yu Shen, Ben Zang, Yu Wang, Hongrong |
author_sort | Zhao, Xiujuan |
collection | PubMed |
description | As a potent, pleiotropic regulatory protein in Gram-positive bacteria, catabolite control protein A (CcpA) mediates the transcriptional control of carbohydrate metabolism in Streptococcus bovis, a lactate-producing bacterium that plays an essential role in rumen acidosis in dairy cows. Although the rumen uptake of carbohydrates is multi-substrate, the focus of S. bovis research thus far has been on the glucose. With the aid of gene deletion, whole-genome sequencing, and transcriptomics, we have unraveled the role of CcpA in carbohydrate metabolism, on the one hand, and acidosis, on the other, and we show that the S. bovis strain S1 encodes “Carbohydrate-Active Enzymes” and that ccpA deletion slows the organism’s growth rate and modulates the organic acid fermentation pathways toward lower lactate, higher formate, and acetate in the maltose and cellobiose. Furthermore, this study revealed the different regulatory functions of the CcpA protein in rumen metabolism and acidosis. IMPORTANCE: This study is important as it illustrates the varying regulatory role of the Streptococcus bovis catabolite control protein A protein in carbohydrate metabolism and the onset of acidosis in dairy cattle. |
format | Online Article Text |
id | pubmed-10617382 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Society for Microbiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-106173822023-11-01 Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis Zhao, Xiujuan Zhang, Ying He, Banglin Han, Yu Shen, Ben Zang, Yu Wang, Hongrong Appl Environ Microbiol Environmental Microbiology As a potent, pleiotropic regulatory protein in Gram-positive bacteria, catabolite control protein A (CcpA) mediates the transcriptional control of carbohydrate metabolism in Streptococcus bovis, a lactate-producing bacterium that plays an essential role in rumen acidosis in dairy cows. Although the rumen uptake of carbohydrates is multi-substrate, the focus of S. bovis research thus far has been on the glucose. With the aid of gene deletion, whole-genome sequencing, and transcriptomics, we have unraveled the role of CcpA in carbohydrate metabolism, on the one hand, and acidosis, on the other, and we show that the S. bovis strain S1 encodes “Carbohydrate-Active Enzymes” and that ccpA deletion slows the organism’s growth rate and modulates the organic acid fermentation pathways toward lower lactate, higher formate, and acetate in the maltose and cellobiose. Furthermore, this study revealed the different regulatory functions of the CcpA protein in rumen metabolism and acidosis. IMPORTANCE: This study is important as it illustrates the varying regulatory role of the Streptococcus bovis catabolite control protein A protein in carbohydrate metabolism and the onset of acidosis in dairy cattle. American Society for Microbiology 2023-10-12 /pmc/articles/PMC10617382/ /pubmed/37823652 http://dx.doi.org/10.1128/aem.00474-23 Text en Copyright © 2023 Zhao et al. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Environmental Microbiology Zhao, Xiujuan Zhang, Ying He, Banglin Han, Yu Shen, Ben Zang, Yu Wang, Hongrong Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis |
title | Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis |
title_full | Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis |
title_fullStr | Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis |
title_full_unstemmed | Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis |
title_short | Transcriptional control of carbohydrate catabolism by the CcpA protein in the ruminal bacterium Streptococcus bovis |
title_sort | transcriptional control of carbohydrate catabolism by the ccpa protein in the ruminal bacterium streptococcus bovis |
topic | Environmental Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10617382/ https://www.ncbi.nlm.nih.gov/pubmed/37823652 http://dx.doi.org/10.1128/aem.00474-23 |
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