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A method for partitioning the information contained in a protein sequence between its structure and function.

Andrea Possenti1,2, Michele Vendruscolo2, Carlo Camilloni3

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Summary
This summary is machine-generated.

This study quantifies the information needed for protein structure, revealing an

Keywords:
designed proteinsinformation contentintrinsically disordered proteinsprotein folding/functionstructure prediction

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Area of Science:

  • Biophysics
  • Computational Biology
  • Molecular Biology

Background:

  • Proteins function based on genetic code information translated into sequences.
  • Protein function relies on the balance between sequence information and structural constraints.

Purpose of the Study:

  • To estimate the information required for protein structure formation, considering thermodynamic properties.
  • To investigate the 'information gap'—sequence information remaining after structure encoding—and its relation to protein function.

Main Methods:

  • Information theory applied to protein sequences and structures.
  • Thermodynamic modeling of protein folding.
  • Predicting the information gap from amino acid sequences.

Main Results:

  • The information gap is closely aligned with the information needed for protein function and interactions.
  • Predicting the information gap from sequences can distinguish ordered from disordered proteins.
  • This approach aids in identifying unknown protein functions and optimizing designed proteins.

Conclusions:

  • Information theory provides a framework to understand protein sequence-structure-function relationships.
  • The 'information gap' is a key metric for predicting protein behavior and applications.
  • Predictive models based on the information gap can advance protein engineering and functional annotation.