Mutation detail:
| Mutation site | E802A |
| Virus | SARS-CoV-2 |
Mutation level  |
Amino acid level |
| Gene/protein/region type | ORF1ab(RdRp) |
| Gene ID | 43740578 |
| Country | India |
| Mutation type |
nonsynonymous mutation |
| Genotype/subtype/clade | - |
| Sample |
Human |
| Variants | - |
| Viral reference sequence | YP_009724389 |
| Drug/antibody/vaccine | - |
| Transmissibility |
- |
| Transmission mechanism | - |
| Pathogenicity |
- |
| Pathogenicity mechanism | - |
| Immune escape mutation | - |
| Immune escape mechanism | - |
| RT-PCR primers probes | - |
Protein detail:
| Protein name | ORF1ab polyprotein |
| Uniprot protein ID | P0DTC1 |
| Protein length | 7096 amino acids |
| Protein description | ORF1ab, the largest gene, contains overlapping open reading frames that encode polyproteins PP1ab and PP1a. The polyproteins are cleaved to yield 16 nonstructural proteins, NSP1-16. Production of the longer (PP1ab) or shorter protein (PP1a) depends on a -1 ribosomal frameshifting event. The proteins, based on similarity to other coronaviruses, include the papain-like proteinase protein (NSP3), 3C-like proteinase (NSP5), RNA-dependent RNA polymerase (NSP12, RdRp), helicase (NSP13, HEL), endoRNAse (NSP15), 2'-O-Ribose-Methyltransferase (NSP16) and other nonstructural proteins. SARS-CoV-2 nonstructural proteins are responsible for viral transcription, replication, proteolytic processing, suppression of host immune responses and suppression of host gene expression. The RNA-dependent RNA polymerase is a target of antiviral therapies. |
Literature information:
| Pubmed ID | 34410443 |
| Clinical information | No |
| Disease | - |
| Published year | 2021 |
| Journal | ARCHIVES OF MICROBIOLOGY |
| Title | Identification and characterization of mutations in the SARS-CoV-2 RNA-dependent RNA polymerase as a promising antiviral therapeutic target |
| Author | Niti Yashvardhini, Deepak Kumar Jha, Saurav Bhattacharya |
| Evidence | The objective of our study was to compare the SARS-CoV-2 RdRp sequences of Indian SARS-CoV-2 isolates with those of Wuhan type virus. A total of 384 point mutations were detected from 488 sequence of the RdRp protein of Indian SARS-CoV-2 genome, out of which seven were used for subsequent study. Furthermore, prediction of secondary structure, protein modeling and its dynamics were performed which revealed that seven mutations (R118C, T148I, Y149C, E802A, Q822H, V880I and D893Y) significantly altered the stability and flexibility of RdRp protein. |