Extended ORF8 Gene Region Is Valuable in the Epidemiological Investigation of Severe Acute Respiratory Syndrome-Similar Coronavirus
Overview
Authors
Affiliations
Severe acute respiratory syndrome coronavirus (SARS-CoV) was discovered as a novel pathogen in the 2002-2003 SARS epidemic. The emergence and disappearance of this pathogen have brought questions regarding its source and evolution. Within the genome sequences of 281 SARS-CoVs, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and SARS-related CoVs (SARSr-CoVs), a ~430 bp genomic region (from 27 701 bp to 28 131 bp in AY390556.1) with regular variations was investigated. This ~430 bp region overlaps with the ORF8 gene and is prone to deletions and nucleotide substitutions. Its complexity suggested the need for a new genotyping method for coronaviruses related to SARS-similar coronaviruses (SARS-CoV, SARSr-CoV, and SARS-CoV-2). Bat SARSr-CoV presented 3 genotypes, of which type 0 is only seen in bat SARSr-CoV, type I is present in SARS in the early phase, and type II is found in all SARS-CoV-2. This genotyping also shows potential usage in distinguishing the SARS-similar coronaviruses from different hosts and geographic areas. This genomic region has important implications for predicting the epidemic trend and studying the evolution of coronavirus.
SARS-CoV-2 Accessory Protein ORF8 Targets the Dimeric IgA Receptor pIgR.
Laprise F, Arduini A, Duguay M, Pan Q, Liang C Viruses. 2024; 16(7).
PMID: 39066171 PMC: 11281603. DOI: 10.3390/v16071008.
Thanongsaksrikul J, Sritipsukho P, Srimanote P, Khantisitthiporn O, Sianglum W, Pinitchai U PLoS One. 2024; 19(5):e0297272.
PMID: 38768163 PMC: 11104647. DOI: 10.1371/journal.pone.0297272.
SARS-CoV-2 ORF8 as a Modulator of Cytokine Induction: Evidence and Search for Molecular Mechanisms.
Movio M, Almeida G, Martines I, Barros de Lima G, Sasaki S, Kihara A Viruses. 2024; 16(1).
PMID: 38275971 PMC: 10819295. DOI: 10.3390/v16010161.
Detection of SARS-CoV-2 Δ426 ORF8 Deletion Mutant Cluster in NGS Screening.
Cecchetto R, Tonon E, Medaina N, Turri G, Diani E, Piccaluga P Microorganisms. 2023; 11(10).
PMID: 37894036 PMC: 10609088. DOI: 10.3390/microorganisms11102378.
Wang M, Zhao Y, Liu J, Li T MedComm Futur Med. 2023; 1(2):e29.
PMID: 37521851 PMC: 9878249. DOI: 10.1002/mef2.29.