A survey of nucleotide cyclases in Actinobacteria: unique domain organization and expansion of the class III cyclase family in Mycobacterium tuberculosis
2004

Survey of Nucleotide Cyclases in Actinobacteria

publication 10 minutes Evidence: moderate

Author Information

Author(s): Avinash R. Shenoy, K. Sivakumar, A. Krupa, N. Srinivasan, Sandhya S. Visweswariah

Primary Institution: Indian Institute of Science, Bangalore, India

Hypothesis

Only class III cyclases are present in Actinobacteria, particularly in Mycobacterium tuberculosis.

Conclusion

The study found that Mycobacterium tuberculosis and Mycobacterium leprae have multiple class III cyclases, indicating their potential roles in virulence and metabolism.

Supporting Evidence

  • Mycobacterium tuberculosis has 17 class III cyclases encoded in its genome.
  • Class III cyclases are the only type found in Actinobacteria.
  • Unique domain fusions in cyclases suggest novel regulatory roles.

Takeaway

This study looked at special proteins called cyclases in certain bacteria, finding that some bacteria have many of these proteins that help them survive and cause disease.

Methodology

The study analyzed genome sequences of various Actinobacteria to identify and classify nucleotide cyclases.

Limitations

The study did not explore the functional implications of the identified cyclases in detail.

Digital Object Identifier (DOI)

10.1002/cfg.349

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