Mycobacterium tuberculosis septum site determining protein, Ssd encoded by rv3660c, promotes filamentation and elicits an alternative metabolic and dormancy stress response
2011

Protein Ssd in Mycobacterium tuberculosis and its Role in Cell Division

publication Evidence: moderate

Author Information

Author(s): Kathleen England, Rebecca Crew, Richard A Slayden

Primary Institution: Colorado State University

Hypothesis

The study aims to identify septum regulatory proteins that participate in adaptive metabolic responses in Mycobacterium tuberculosis.

Conclusion

The study establishes a connection between a septum regulatory protein and the induction of alternative metabolism associated with a non-replicating state in Mycobacterium tuberculosis.

Supporting Evidence

  • Increased expression of ssd inhibited septum formation, leading to elongated cells.
  • Transcriptional mapping showed that ssd expression elicited a unique response involving dormancy regulon and alternative sigma factors.
  • Disruption of rv3660c by transposon insertion negated the unique transcriptional response.

Takeaway

Researchers found a protein in tuberculosis bacteria that helps them grow longer instead of dividing, which might help them survive in tough conditions.

Methodology

The study used bioinformatics, ultrastructural analysis, and transcriptional mapping to investigate the role of the Ssd protein.

Statistical Information

P-Value

≤ 0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2180-11-79

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication