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Related Concept Videos

Proteomics01:33

Proteomics

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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
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Protein Networks02:26

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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Protein-protein Interfaces02:04

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Updated: Jun 28, 2025

A Comparative Approach to Characterize the Landscape of Host-Pathogen Protein-Protein Interactions
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A Structural Proteome Screen Identifies Protein Mimicry in Host-Microbe Systems.

Gabriel Penunuri, Pingting Wang, Russell Corbett-Detig

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    This study introduces an in silico screen to identify microbial genes involved in host interactions by detecting protein structure mimicry. This approach aids in understanding host-microbe systems and advancing global health.

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    Area of Science:

    • Microbiology
    • Bioinformatics
    • Structural Biology

    Background:

    • Host-microbe systems are crucial for global health but challenging to study experimentally.
    • Molecular mimicry is a key microbial strategy for host manipulation and survival.
    • In silico methods offer a powerful approach to overcome experimental limitations.

    Approach:

    • Developed and validated a computational screen using protein structure prediction and alignment.
    • Leveraged the Legionella pneumophila proteome and known structural mimics for screen development.
    • Applied the screen to identify protein mimic candidates in Helicobacter pylori and Wolbachia.

    Key Points:

    • Identified candidate proteins involved in host interactions within microbial proteomes.
    • The screen effectively detects molecular mimicry at the protein structure level.
    • Demonstrated the utility of the screen in microbes impacting global health.

    Conclusions:

    • The developed in silico screen is applicable to diverse host-microbe systems.
    • Identified potential mediators of host manipulation and intracellular survival.
    • This work facilitates the discovery of functionally important genes in host-microbe interactions.