What is O ANTIGEN?

The somatic antigen of Gram-negative bacteria, eg genera Escherichia, Shigella, Salmonella etc. Species specific cell wall antigen with an outer side chain of repeating units of oligosaccharides which confers strain specificity. The polysaccharide is internally linked to lipid A forming lipopolysaccharide.


Link to This Definition

Did you find this definition of O ANTIGEN helpful? You can share it by copying the code below and adding it to your blog or web page.
Edited and fact checked by Pam: Google +