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• W4225099274 abstract "Bacterial peptidases play important roles in health and nutrient digestion in both humans and animals, especially ruminant animals. In this study, we examined and compared the various peptidases (both total and secretory) among species of Prevotella (44 in total) and Paraprevotella (2) revealed in their sequenced genomes that were archived in the MEROPS database. The phylogenetic relationships were also compared among the species based on 16S rRNA gene sequences and the occurrence of peptidases. A rich repertoire of peptidases was found that represents six catalytic types of peptidases (aspartic, cysteine, glutamic, metallo, mixed, and serine), together with some with unknown catalytic mechanisms, and 78 families. Metallopeptidases were the most predominant, followed by serine and cysteine peptidases. Considerable variations in peptidase occurrence and distribution were noted among the species and the different families of peptidases. A total of 48 different families of secretory peptidases were found in the genomes of the Prevotella and Paraprevotella species. Secretory peptidases in the families of S41 and M13 were ubiquitous, and S9, M16, C1, S13, and C69 were found in more than 95% of the species. Multivariate analysis of the peptidases indicated that species were mostly clustered except for a few species. Analysis using a bipartite association network showed that the majority of peptidase families were shared among the species. The relatedness of peptidase distributions among the species did not significantly correlate with their phylogenetic relationship based on the 16S rRNA genes. The genomic overview on the peptidases of Prevotella and Paraprevotella species provided new insights into their potential capacity to degrade proteins. IMPORTANCE Species of Prevotella are prevalent and predominant bacteria residing in animals and humans, and their proteolytic capacity and activity play important roles in nutrient utilization in animals (especially ruminants) and some anaerobic infections of the intestinal, respiratory, and urinary tracts in humans. This study reveals the large repertoire and wide distribution of metallo, serine, and cysteine peptidases, especially secretory peptidases, among the Prevotella species. The information presented here could aid in the identification of the Prevotella species and the peptidases to target to decrease the excessive protein degradation in the rumen and improve dietary nitrogen utilization by ruminant animals." @default.
• W4225099274 created "2022-04-30" @default.
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• W4225099274 date "2022-04-27" @default.
• W4225099274 modified "2023-09-30" @default.
• W4225099274 title "Genomic Insights into the Distribution of Peptidases and Proteolytic Capacity among <i>Prevotella</i> and <i>Paraprevotella</i> Species" @default.
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• W4225099274 doi "https://doi.org/10.1128/spectrum.02185-21" @default.
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