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Related Concept Videos

Protein and Protein Structure02:15

Protein and Protein Structure

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
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Single-pass Transmembrane Proteins01:25

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Integral membrane proteins are tightly associated with the cell membrane and play a crucial role in cell communication, signaling, adhesion, and transport of the molecules. Some integral membrane proteins are present only in the membrane monolayer. For example, the enzyme fatty acid amide hydrolase is present in the cytoplasmic side of the membrane monolayer. In contrast, another type of integral membrane protein, also known as a transmembrane protein, spans across the membrane. Transmembrane...
Multi-pass Transmembrane Proteins and β-barrels01:09

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In multi-pass transmembrane proteins, the polypeptide chain crosses the membrane more than once. The transmembrane polypeptide chain either forms an α-helix or β-strand structure. α-Helix containing multi-pass transmembrane proteins are ubiquitous, whereas β-strand containing ones are mainly found in gram-negative bacteria, mitochondria, and chloroplasts.
α-Helix containing multi-pass transmembrane proteins
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Updated: Jun 3, 2026

A Protocol for Computer-Based Protein Structure and Function Prediction
16:41

A Protocol for Computer-Based Protein Structure and Function Prediction

Published on: November 3, 2011

Outer membrane proteins can be simply identified using secondary structure element alignment.

Ren-Xiang Yan1, Zhen Chen, Ziding Zhang

  • 1State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, PR China.

BMC Bioinformatics
|March 19, 2011
PubMed
Summary
This summary is machine-generated.

A new method, SSEA-OMP, identifies outer membrane proteins (OMPs) by analyzing their unique beta-barrel structures. This simple yet effective approach aids in accelerating genome annotation and drug discovery.

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Last Updated: Jun 3, 2026

A Protocol for Computer-Based Protein Structure and Function Prediction
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Area of Science:

  • Biochemistry
  • Structural Biology
  • Bioinformatics

Background:

  • Outer membrane proteins (OMPs) are crucial in gram-negative bacteria, mitochondria, and chloroplasts, performing diverse functions.
  • Accurate identification of OMPs is vital for advancing genome annotation and drug discovery.

Purpose of the Study:

  • To develop a computational method for distinguishing OMPs from other proteins.
  • To leverage the distinct structural characteristics of OMPs for improved identification.

Main Methods:

  • Proposed SSEA-OMP method based on secondary structure element alignment.
  • Analysis of antiparallel beta-strand arrangements characteristic of OMPs.
  • Benchmarking against established OMP detection techniques.

Main Results:

  • SSEA-OMP effectively identifies OMPs based on their unique beta-barrel structure.
  • The method demonstrates superior performance compared to existing OMP detection tools.
  • Achieved high prediction accuracy due to the distinct secondary structure arrangements in OMPs.

Conclusions:

  • SSEA-OMP offers a simple yet highly effective approach for OMP identification.
  • The method's simplicity and strong predictive power are key advantages.
  • A publicly accessible web server for SSEA-OMP is available at http://protein.cau.edu.cn/SSEA-OMP/index.html.