Autolysin

Definition

Autolysins are enzymes produced by bacteria that hydrolyze the components of their own cell walls, leading to cell lysis. They play a crucial role in bacterial cell growth, division, and pathogenesis.

5 Must Know Facts For Your Next Test

1. Autolysins are vital for bacterial cell wall remodeling during growth and division.
2. They contribute to the virulence of certain respiratory pathogens like Streptococcus pneumoniae.
3. These enzymes target peptidoglycan, an essential component of the bacterial cell wall.
4. Inhibition or malfunction of autolysins can lead to failure in cell separation and abnormal bacterial morphology.
5. Autolysin activity is tightly regulated within bacteria to prevent premature or uncontrolled lysis.

Related terms

Peptidoglycan:

A polymer that forms a protective structural layer in most bacterial cell walls.

Streptococcus pneumoniae:

A bacterium commonly associated with respiratory tract infections like pneumonia.

Cell Lysis: The disintegration or rupture of a cell caused by damage to its plasma membrane.