Peptidoglycan

**Definition:** A structural polymer of the bacterial cell envelope consisting of sugars and amino acids which is responsible for both shape determination and cellular integrity under osmotic stress in virtually all bacteria.

**Tree numbers:** - D09.400.420.700 - D09.400.430.900.800 - D09.698.718.594 - D12.644.233.594 - D12.776.395.560.800 - D23.050.161.616.594

**Synonyms:** - Murein