1 Shri Jagdishprasad Jhabarmal Tibrewala University, Jhunjhunu, Churu Rd, Vidyanagari, Churela, Rajasthan 33300, India.
2 Wobble Base BioResearch Private Limited, B 604, Kapil Aasmant, Pashan-Sus Road, Pashan, Pune, Maharashtra 411021, India.
3 Government Medical College, Majura Gate, Surat, Gujarat 395001, India.
4 SN GeneLab Private Limited, Nanpura, Surat, Gujarat 388001, India.
Research Article
World Journal of Advanced Research and Reviews, 2021, 10(03), 370-391
Article DOI: 10.30574/wjarr.2021.10.3.0288
Received on 18 May 2021; revised on 20 June 2021; accepted on 23 June 2021
MicroRNA are short and non-coding RNA, 18-25 nucleotides in length. They are produced at the early stage of viral infection. The roles played by cellular miRNAs and miRNA-mediated gene-silencing in the COVID-19 epidemic period is critical in order to develop novel therapeutics. We analyzed SARS-CoV-2 Surface Glycoprotein (S) nucleotide sequence originating from India as well as Iran, Australia, Germany, Italy, Russia, China, Japan and Turkey and identified mutation in potential seed location of several human miRNA. Seventy single nucleotide polymorphisms (SNP) were detected in the S gene out of which, 36, 32 and 2 were cases of transitions, transversions and deletions respectively. Eleven human miRNA targets were identified on the reference S gene sequence with a score >80 in the miRDB database. Mutation A845S erased a common binding site of 7 human miRNA (miR-195-5p, miR-16-5p, miR-15b-5p, miR-15a-5p, miR-497-5p, miR-424-5p and miR-6838-5p). A synonymous mutation altered the wild type Ochre stop codon within the S gene sequence (Italy) to Opal thereby changing the seed sequence of miR-511-3p. Similar (synonymous) mutations were detected at amino acid position 659 and 1116 of the S gene where amino acids serine and threonine were retained, abolishing potential seed location for miR-219a-1-3p and miR-20b-3p respectively. The significance of this finding in reference to the strategy to use synthetic miRNA combinations as a novel therapeutic tool is discussed.
miRNA; S gene; COVID-19; SARS-CoV-2; Seed Sequence; Single Nucleotide Polymorphism
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Krishna Himmatbhai Goyani, Shalin Vaniawala and Pratap Narayan Mukhopadhyaya. Mutations within the Open Reading Frame (ORF) including Ochre stop codon of the Surface Glycoprotein gene of SARS-CoV-2 virus erase potential seed location motifs of human non-coding microRNAs. World Journal of Advanced Research and Reviews, 2021, 10(3), 370-391. Article DOI: https://doi.org/10.30574/wjarr.2021.10.3.0288