Proteomics

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Proteome of HEK293T cells upon P2YR6 overexpression

ABSTRACT: Defense against virus infections relies on rapid and massive engagement of cellular proteins with antiviral properties. Germline-encoded pattern recognition receptors (PRRs) sense the presence of pathogens and initiate a signaling cascade leading to the induction of antiviral cytokines, including type-I interferons. IFN-alpha/beta bind to the IFN receptor (IFNAR), initiating signaling that culminates in the expression of interferon-stimulated genes (ISGs). In sum, viral infection triggers the expression of several hundred proteins covering a wide range of biological activities. Among these proteins are PRRs (e.g. RIG-I, MDA5, TLRs), signaling molecules (e.g. MYD88, MAVS), transcription factors (e.g. IRFs, STATs) and proteins with direct antiviral functions (e.g. MX proteins, IFITs), as well as negative regulators of immune responses (e.g. SOCS proteins, DAPK1) that prevent overshooting of immune reactions. ISGs are thus a heterogeneous group of proteins that serve different purposes related to direct antiviral defense and immune regulation.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture

SUBMITTER: Pietro Scaturro  

LAB HEAD: Andreas Pichlmair

PROVIDER: PXD012277 | Pride | 2019-03-01

REPOSITORIES: Pride

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20170802_QEp5_PhHu_SA_Hek_Easy12_FlipInGFP_Dox_10.raw Raw
20170802_QEp5_PhHu_SA_Hek_Easy12_FlipInGFP_Dox_11.raw Raw
20170802_QEp5_PhHu_SA_Hek_Easy12_FlipInGFP_Dox_12.raw Raw
20170802_QEp5_PhHu_SA_Hek_Easy12_FlipInGFP_NoDox_7.raw Raw
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Publications

Interferon-stimulated genes (ISGs) form the backbone of the innate immune system and are important for limiting intra- and intercellular viral replication and spread. We conducted a mass-spectrometry-based survey to understand the fundamental organization of the innate immune system and to explore the molecular functions of individual ISGs. We identified interactions between 104 ISGs and 1,401 cellular binding partners engaging in 2,734 high-confidence interactions. 90% of these interactions are  ...[more]

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