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Peptide hormone

Ciro Santilli (@cirosantilli, 37) ... Natural science Biology Level of organization of bodies Molecular biology Protein Type of protein
Created 2025-06-17 Updated 2025-07-16  0 By others on same topic  0 Discussions Create my own version
  • Table of contents
    • Insulin Peptide hormone
      • Proinsulin Insulin
      • A chain of insulin Insulin
      • B chain of insulin Insulin
      • C-peptide Insulin

Insulin

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Peptide hormone Tags: Model protein
Studying insulin reveals some really cool protein motifs of life:
  • both the A chain and B chain are transcribed from a single gene. The resulting peptide also contain:
    • the C-peptide in the middle which gets removed
    • a signaling sequence telling the cell to export the substance out as it is a hormone
Figure 1.
Primary structure of insulin
. Source.

 Tagged

  • 1958 Nobel Prize in Chemistry

Proinsulin

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Insulin

A chain of insulin (21 amino acids)

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Insulin

B chain of insulin (30 amino acids)

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Insulin

C-peptide (31 amino acids)

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Insulin

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  1. Type of protein
  2. Protein
  3. Molecular biology
  4. Level of organization of bodies
  5. Biology
  6. Natural science
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