Journal
BIOENGINEERED
Volume 12, Issue 1, Pages 745-754Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/21655979.2021.1894798
Keywords
Clostridium difficile LCL126; genome; virulence analysis; methylation; function annotation
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In this study, the genome of Clostridium difficile was studied using metagenomic technology, revealing its gene sequence information and potential toxicological genes. Through gene function analysis and pathogenicity analysis, the metabolism activity, catalytic activity, carbohydrate-active enzyme genes and other aspects of the bacterium were understood, and an assessment was made on its virulence genes.
Clostridium difficile (C. difficile) is a kind of obligate anaerobic gram-positive Bacillus related with intestinal diseases and antibiotic treatment. In present study, the C. difficile genome was studied employing met genomic technology. Genome sequencing identified C. difficile LCL126 has total size of 4,301,949 bp with a 27.97% of GC content. Specifically, 4119 predicted coding genes, 188 repeat sequences, 13 prophages and 8 gene islands were detected. Additionally, gene function analysis aspect of the function annotation, effector, and virulence were concluded that total of 3367 cluster of orthologous groups of proteins genes and classified into 24 categories, while the most outstanding class was metabolic process (1533) and catalytic activity (1498). The carbohydrate-active enzymes have been detected 127 genes, pathogenicity analysis revealed that 133 reduced and 22 increased virulence (hypervirulence) genes, while 54 unaffected and 10 loss of pathogenicity genes were found. Furthermore, perform the visualization and methylation expression were revealed that the dominant types comprised m4C, m5C, and m6C with the number of 6989, 36,666, and 3534, respectively. Overall, whole genome sequence information of C. difficile LCL126 was obtained and functional prediction was revealed its possible toxicological potential genes existence.
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