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Related Concept Videos

Protein Networks02:26

Protein Networks

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,...
Protein Networks02:26

Protein Networks

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,...
Protein-protein Interfaces02:04

Protein-protein Interfaces

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 polypeptide...
Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order to...
Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order to...
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...

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NetGrep: fast network schema searches in interactomes.

Eric Banks1, Elena Nabieva, Ryan Peterson

  • 1Department of Computer Science, Princeton University, Princeton, NJ 08540, USA. ebanks@cs.princeton.edu

Genome Biology
|September 20, 2008
PubMed
Summary
This summary is machine-generated.

NetGrep is a system for searching protein interaction networks using user-defined network schemas. It helps identify complex biological pathways and interaction patterns within protein networks.

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Area of Science:

  • Bioinformatics
  • Systems Biology
  • Computational Biology

Background:

  • Protein interaction networks are crucial for understanding cellular processes.
  • Identifying specific network patterns, like signaling pathways, is challenging with existing tools.

Purpose of the Study:

  • To introduce NetGrep, a novel system for querying protein interaction networks.
  • To enable users to search for complex network topologies and protein descriptions.

Main Methods:

  • NetGrep utilizes user-supplied 'network schemas' that define protein properties and interaction topology.
  • The system employs advanced graphical interfaces for schema specification.
  • Fast algorithms are used for efficient extraction of matching network patterns.

Main Results:

  • NetGrep can identify various network patterns, including domain-domain interactions and regulatory pathways.
  • The system facilitates the search for complex network motifs within large datasets.

Conclusions:

  • NetGrep provides a powerful and flexible platform for analyzing protein interaction networks.
  • The system enhances the ability to discover functional relationships and pathways within biological systems.