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Landscape mapping of functional proteins in insulin signal transduction and insulin resistance: a network-based

Chiranjib Chakraborty1, Sanjiban S Roy, Minna J Hsu

  • 1School of Bioscience and Technology, VIT University, Vellore, India.

Plos One
|February 10, 2011
PubMed

Insights

Type 2 diabetes is rising globally. This study analyzes key insulin signaling proteins, revealing a complex interaction network crucial for understanding insulin resistance and diabetes.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genomics

Background:

  • Type 2 diabetes mellitus (T2DM) is a growing global health concern.
  • Insulin resistance, a disruption in insulin signal transduction, is a primary driver of T2DM.
  • The insulin signaling pathway involves critical proteins like INS, INSR, IRS1, IRS2, PIK3CA, Akt2, and GLUT4.

Purpose of the Study:

  • To investigate the molecular interactions within the insulin signaling pathway.
  • To analyze the relationships between key functional proteins involved in insulin transduction.
  • To provide insights into the complex network underlying insulin resistance.

Main Methods:

  • Multiple sequence alignment of seven key insulin signaling proteins.
  • Phylogenetic tree construction and modification.
  • Generation of sequence logos and protein-protein interaction network analysis.

Main Results:

  • Established sequence alignments and scores for the identified proteins.
  • Developed a phylogenetic tree illustrating evolutionary relationships.
  • Constructed a protein-protein interaction network highlighting functional associations.

Conclusions:

  • The insulin signal transduction pathway exhibits a complex network structure among its functional proteins.
  • Understanding these interactions is vital for elucidating the mechanisms of insulin resistance.
  • This network analysis offers a foundation for future research into T2DM pathogenesis.

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