Divisome

Definition

The divisome is a protein complex in bacterial cells responsible for cell division. It orchestrates the formation of the septum that separates the dividing cells.

5 Must Know Facts For Your Next Test

1. The divisome is essential for binary fission in bacteria.
2. It includes key proteins like FtsZ, which forms a ring at the future site of division.
3. FtsI and FtsK are other important proteins involved in peptidoglycan synthesis and chromosome segregation, respectively.
4. The divisome assembles at the mid-cell after DNA replication is nearly complete.
5. Mutations in divisome components can lead to cell division defects or failure.

Review Questions

• What is the function of the FtsZ protein within the divisome?
• Why is the assembly of the divisome crucial before bacterial cell division?
• How does a mutation in a divisome protein affect bacterial growth?

Related terms

Binary Fission: A method of asexual reproduction in which a single organism divides into two genetically identical daughter cells.

Peptidoglycan Synthesis: Process by which bacteria produce their cell wall, involving several enzymes and precursors.

Septum Formation: The process where a new cell wall (septum) forms to separate dividing cells during binary fission.