Evolutionary Analysis of Novel Serine Proteases in the Venom Gland Transcriptome of Bitis gabonica rhinoceros
2011

Evolution of Novel Snake Venom Serine Proteases

publication Evidence: moderate

Author Information

Author(s): Vaiyapuri Sakthivel, Wagstaff Simon C., Harrison Robert A., Gibbins Jonathan M., Hutchinson E. Gail

Primary Institution: University of Reading

Hypothesis

How have novel serine proteases in the venom of Bitis gabonica rhinoceros evolved?

Conclusion

The study reveals the diversity of serine protease isoforms in snake venom and their potential roles in envenomation and adaptation.

Supporting Evidence

  • Four distinct serine protease genes were identified in the venom gland of Bitis gabonica rhinoceros.
  • Mass spectrometry confirmed the presence of these enzymes in the snake's venom.
  • The study suggests that alternative splicing and amino acid mutations contributed to the evolution of these proteases.

Takeaway

This study looks at how different types of snake venom proteins have changed over time, which helps us understand how snakes can better catch their food and survive.

Methodology

The researchers amplified and sequenced four serine protease-encoding genes from the venom gland transcriptome and analyzed their sequences and functions.

Limitations

The study does not explore the functional roles of the identified serine protease homologues in detail.

Digital Object Identifier (DOI)

10.1371/journal.pone.0021532

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