Characteristics of the amino acids as components of a peptide hormone sequence

  • J. Rudinger
Part of the Biological Council book series (BCSDA)


In the living organism the polypeptide chains of proteins are used for the most diverse purposes: structural support and protection, catalysis of a wide range of chemical reactions, energy transduction, food storage, transport, and—among many others—regulation and co-ordination by information transfer (including humoral transmission by hormones). Molecules with the varied properties required for these multifarious functions are built up of a mere 20 units: the protein-constituent amino acids, connected primarily in a single structural mode (a linear sequence) but finally arranged in space in intricate ways to molecules of the required size, shape and properties. Although the peptide hormones fulfil such a highly specialised role, there is nothing to distinguish, a priori, their sequences from other polypeptide or protein sequences with different biological functions, or no function at all.


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Copyright information

© Institute of Biology Endowment Trust Fund 1976

Authors and Affiliations

  • J. Rudinger
    • 1
  1. 1.Institut für Molekularbiologie und BiophysikEidgenössische Technische HochschuleZürichSwitzerland

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