Identification of putative microRNAs in the complete genome of Mycobacterium avium and their possible interaction with human transcripts

• Published in: Journal of applied genetics Vol. 63; no. 1; pp. 169 - 182
• Main Authors: Nath, Durbba, Chakraborty, Supriyo
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2022; Springer; Springer Nature B.V
• Subjects: 3' Untranslated regions; Animal Genetics and Genomics; Bacteria; Biomedical and Life Sciences; Cellular signal transduction; Deoxyribonucleic acid; DNA; Drinking water; Enzymes; Gene expression; Genes; Genetic transcription; Genomes; Genomics; High-Throughput Nucleotide Sequencing; House dust; Human Genetics; Humans; Immune system; Life Sciences; Microbial Genetics and Genomics; Microbial Genetics • Original Paper; MicroRNA; MicroRNAs; MicroRNAs - genetics; miRNA; Mycobacterium avium; Mycobacterium avium - genetics; Plant Genetics and Genomics; Ribonucleic acid; RNA; Sequence Analysis, DNA; Signal transduction; Soil water; Transcription; Transcriptome; Transcriptomes; Pathway analysis; Functional annotation; Secondary structures; MicroRNAs; Target prediction; Mycobacterium avium
• ISSN: 1234-1983; 2190-3883
• DOI: 10.1007/s13353-021-00666-9

The grievous adversity regarding Mycobacterium avium is its ubiquitous nature. Isolation of the bacteria from drinking water, house dust, and soil, etc., is an alarming issue for the scientific community. The microRNAs are the molecular influencers of gene expression that act during the process of post transcription. A few reports claimed the existence of microRNAs or microRNA-like molecules in the prokaryotic species. Biogenesis of bacterial miRNAs requires their transport into the host cell. Subsequently, the host-encoded enzymes are exerted for the formation of bacterial mature miRNAs and their regulation. In our study, the screening of complete genome of Mycobacterium avium revealed six putative precursor microRNA sequences bearing typical secondary structures. The mature microRNAs were predicted in both arms of the secondary structures. A total of 12 possible mature microRNAs were identified in this study. The likely targets of the predicted mature miRNAs were searched in human 3′ UTR. In the human transcriptome, 193 genes were possibly targeted by 12 mature miRNAs of Mycobacterium avium. The essential functionalities of the target genes included signal transduction, immune system, DNA binding, and response to stress.