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Related Experiment Video

Updated: Jun 20, 2026

Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis
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Published on: June 9, 2018

Evolutionary changes to transthyretin: structure-function relationships.

P Prapunpoj1, L Leelawatwattana

  • 1Department of Biochemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand. porntip.p@psu.ac.th

The FEBS Journal
|September 4, 2009
PubMed
Summary
This summary is machine-generated.

This review explores the evolution of transthyretin, a key protein for thyroid hormone and retinol transport in vertebrates. Understanding its structural changes reveals insights into its diverse functions and associated diseases like amyloidosis.

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Area of Science:

  • Biochemistry
  • Evolutionary Biology
  • Molecular Biology

Background:

  • Transthyretin (TTR) is a major plasma protein binding thyroid hormones and transporting retinol.
  • Its conserved homotetrameric structure is crucial for metabolism and implicated in diseases like amyloidosis.
  • TTR null mice show no overt phenotype, suggesting functional redundancy within a protein network.

Purpose of the Study:

  • To review the evolutionary trajectory of transthyretin structure and function in vertebrates.
  • To elucidate the molecular mechanisms driving evolutionary changes in transthyretin.
  • To understand how these evolutionary changes impact transthyretin's physiological roles.

Main Methods:

  • Comparative analysis of transthyretin structures across vertebrate species.
  • Review of existing literature on transthyretin's structure-function relationships.
  • Discussion of molecular evolutionary principles applied to transthyretin.

Main Results:

  • Transthyretin exhibits a highly conserved structure across vertebrates, essential for its functions.
  • Evolutionary changes in transthyretin structure are linked to its roles in hormone transport and disease.
  • Functional redundancy and network interactions likely buffer the effects of TTR loss.

Conclusions:

  • Studying transthyretin evolution provides critical insights into protein function and adaptation.
  • Understanding evolutionary changes aids in comprehending transthyretin-related pathologies.
  • Transthyretin's evolutionary history highlights its complex interplay with other metabolic proteins.