Proteomics

Dataset Information

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Identification of proteins differentially associated with SARS CoV-2 subgenomic RNAs


ABSTRACT: We characterize the specific protein interactomes of 3 SARS sgRNAs (S, N, and ORF8) as well as the gRNA at two time points, 8- and 24- hours. These two timepoints were selected to capture early viral infection when RNA synthesis is just beginning, and viral replication is being established, as well as a later stage where protein synthesis and virion packaging is occurring. We identified over 500 proteins associated with one or more of the viral RNAs. These include both host and viral proteins that have been previously shown to bind to SARS-CoV-2 RNAs and novel (not previously identified) protein interactors.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Isabella Whitworth  

LAB HEAD: Identification of proteins differentially associated with SARS CoV-2 subgenomic RNAs

PROVIDER: PXD040147 | Pride | 2023-07-30

REPOSITORIES: Pride

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Publications

Defining distinct RNA-protein interactomes of SARS-CoV-2 genomic and subgenomic RNAs.

Whitworth Isabella T IT   Knoener Rachel A RA   Puray-Chavez Maritza M   Halfmann Peter P   Romero Sofia S   Baddouh M'bark M   Scalf Mark M   Kawaoka Yoshihiro Y   Kutluay Sebla B SB   Smith Lloyd M LM   Sherer Nathan M NM  

bioRxiv : the preprint server for biology 20230516


Host RNA binding proteins recognize viral RNA and play key roles in virus replication and antiviral defense mechanisms. SARS-CoV-2 generates a series of tiered subgenomic RNAs (sgRNAs), each encoding distinct viral protein(s) that regulate different aspects of viral replication. Here, for the first time, we demonstrate the successful isolation of SARS-CoV-2 genomic RNA and three distinct sgRNAs (N, S, and ORF8) from a single population of infected cells and characterize their protein interactome  ...[more]

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