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Related Concept Videos

Protein Networks02:26

Protein Networks

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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.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
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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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Proteomics01:33

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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.
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Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
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Updated: Dec 12, 2025

JUMPn: A Streamlined Application for Protein Co-Expression Clustering and Network Analysis in Proteomics
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Graph2GO: a multi-modal attributed network embedding method for inferring protein functions.

Kunjie Fan1, Yuanfang Guan2, Yan Zhang1,3

  • 1Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA.

Gigascience
|August 10, 2020
PubMed
Summary
This summary is machine-generated.

Graph2GO, a novel graph-based model, accurately predicts protein functions by integrating diverse biological data. This computational approach accelerates biological research by providing testable hypotheses for large-scale experiments.

Keywords:
attributed network embeddinggraph neural networkmulti-modal modelprotein function predictionrepresentation learning

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Systems Biology

Background:

  • Experimental protein function characterization is time-consuming and expensive.
  • Accurate computational methods are crucial for predicting protein functions and guiding experiments.
  • Gene Ontology (GO) is a key resource for annotating protein functions.

Purpose of the Study:

  • To develop an advanced computational model for predicting protein functions.
  • To integrate heterogeneous biological data for improved prediction accuracy.
  • To provide a user-friendly tool for protein function analysis.

Main Methods:

  • Developed Graph2GO, a multi-modal graph-based representation learning model.
  • Integrated sequence similarity networks, protein-protein interaction networks, and protein features (sequence, location, domains).
  • Utilized attributed network representation learning for modeling interactions and features.

Main Results:

  • Graph2GO achieved state-of-the-art performance in protein function prediction.
  • Outperformed baseline (BLAST) and existing methods (Mashup, deepNF).
  • Demonstrated robustness across multiple species and provided a web server for on-the-fly analysis.

Conclusions:

  • Graph2GO is the first model to use attributed network representation learning for protein function prediction.
  • The model's performance is promising and can be extended with more features.
  • Graph2GO is applicable to other biological network analyses and downstream machine learning tasks.