ArticleMicrobial cell factories2020
Effects of ccpA gene deficiency in Lactobacillus delbrueckii subsp. bulgaricus under aerobic conditions as assessed by proteomic analysis.
Article in Microbial cell factories, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 13 citations in OpenAlex.
- The Role ofFoods (Basel, Switzerland) · 2025Article
- CcpA-mediated regulation of cellular energy metabolism in the ruminal bacteriumMicrobiology spectrum · 2025Article
- A Point Mutation in Cassette Relieves the Repression Regulation of CcpA Resulting in an Increase in the Degradation of 2,3-Butanediol inMicroorganisms · 2024Article
- Tween 80™-induced changes in fatty acid profile of selected mesophilic lactobacilli.Acta biochimica Polonica · 2024Article
- New progress in the identifying regulatory factors of exopolysaccharide synthesis in lactic acid bacteria.World journal of microbiology & biotechnology · 2023Review
- Lactobacilli and human dental caries: more than mechanical retention.Microbiology (Reading, England) · 2022Article
- Effects of Alkali Stress on the Growth and Menaquinone-7 Metabolism ofFrontiers in microbiology · 2022Article
- Lactic acid production using cheese whey based medium in a stirred tank reactor by a ccpA mutant of Lacticaseibacillus casei.World journal of microbiology & biotechnology · 2021Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
backgroundAerobic growth provides benefits in biomass yield and stress tolerance of Lactobacillus delbrueckii subsp. bulgaricus (L. bulgaricus). Catabolite control protein A (CcpA) is a master regulator involved in the aerobic and anaerobic growth, metabolic production and stress response in L. bulgaricus, but its potential molecular mechanisms remains unclear. The aim of this study is to elucidate the role of CcpA in L. bulgaricus in aerobic growth at the proteomic perspective.
resultsThe differential proteomic analysis was performed on the L. bulgaricus ATCC11842 and its ccpA inactivated mutant strain using iTRAQ technology. A total of 132 differentially expressed proteins were obtained, among which 58 were up-regulated and 74 were down-regulated. These proteins were mainly involved in the cellular stress response, carbohydrate and energy metabolism, amino acid transport and protein synthesis, genetic information processing. Moreover, inactivation of ccpA negatively affected the expression of key enzymes involved in glycolysis pathway, while it enhanced the expression of proteins related to the pyruvate pathway, supporting the conclusion that CcpA mediated the shift from homolactic fermentation to mixed acid fermentation in L. bulgaricus.
conclusionsOverall, these results showed that the role of CcpA in L. bulgaricus as a pleiotropic regulator in aerobic metabolism and stress response. This proteomic analysis also provide new insights into the CcpA-mediated regulatory network of L. bulgaricus and potential strategies to improve the production of starter and probiotic cultures based on the metabolic engineering of global regulators.
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