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Related Experiment Videos

C-reactive protein: structural biology, gene expression, and host defense function

A J Szalai1, A Agrawal, T J Greenhough

  • 1Department of Medicine, University of Alabama at Birmingham 35294, USA.

Immunologic Research
|January 1, 1997
PubMed
Summary
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Human C-reactive protein (CRP) is a key host defense molecule. Recent studies reveal its structure, function in fighting Streptococcus pneumoniae, and a novel testosterone-dependent expression linked to host defense.

Area of Science:

  • Biochemistry
  • Immunology
  • Molecular Biology

Background:

  • Human C-reactive protein (CRP) is a crucial plasma protein involved in the acute phase response.
  • Recent advancements have significantly deepened our understanding of CRP's biological and biochemical properties.

Purpose of the Study:

  • To provide an overview of recent findings regarding human C-reactive protein (CRP).
  • To highlight the structural, functional, and regulatory aspects of CRP.

Main Methods:

  • X-ray crystallography was employed to determine the three-dimensional structure of CRP.
  • Mutational analyses were conducted to understand ligand-binding sites.
  • Transgenic mouse models infected with Streptococcus pneumoniae were used to assess CRP's in vivo function.

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Main Results:

  • The three-dimensional structure of CRP and its ligand-binding sites were elucidated.
  • CRP was confirmed as a vital host defense molecule against Streptococcus pneumoniae.
  • Constitutive expression of human CRP was found to be testosterone-dependent in transgenic mice.

Conclusions:

  • Recent research has significantly advanced the understanding of human CRP's structure and function.
  • CRP plays a critical role in host defense mechanisms.
  • Testosterone influences the expression of CRP, indicating a novel regulatory pathway.