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  • Title: A brief review of the scientific history of several lesser-known snake venom proteins: l-amino acid oxidases, hyaluronidases and phosphodiesterases.
    Author: Fox JW.
    Journal: Toxicon; 2013 Feb; 62():75-82. PubMed ID: 23010165.
    Abstract:
    When considering the proteins and toxins in snake venom one's thoughts generally migrate to the proteinases, neurotoxins and phospholipases since these families of proteins are comprised by many of the toxins found in venom. However as modern proteomic and transcriptomic venom research has abundantly shown snake venoms are complex and containing numerous families of protein beyond the "big three". In this brief review we will discuss three of the lesser discussed proteins typically found in snake venoms: l-amino acid oxidases (LAAO); hyaluronidases and phosphodiesterases. These proteins have long been known to be part of many venoms' proteomes with reports appearing in the literature as early as 1944 for LAAO, 1947 for hyaluronidase (spreading factor), and 1932 for venom phosphodiesterase. These are more or less contemporary with the first reports (circa 1950) on snake venom proteases. Thus, the relatively modest literature on these snake venom proteins stems not from lack of early discovery but rather more likely to their ostensibly minor role in snake venom pathophysiology. In this review we will provide an overview of the experimental history of these venom proteins, their biochemical and structural features and their role in snake venom toxinology with the aim of bringing a fuller, more comprehensive, understanding of the history of laboratory research on snake venoms. In addition, there are some comments on these proteins from investigators who were actively engaged in their investigation.
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