Medical Dictionary
Main Entry:
fla·gel·lin Pronunciation:
fl&-'jel-&n Function:
noun : a polymeric protein that is the chief constituent of bacterialflagella, that forms helical chains around the hollow core of the flagellar filament, that determines the specificity of the flagellum in eliciting an immune response by its amino acid sequence, andthat within any one serogroup can vary between two antigenic states by switching between the expression of two different genes
(flə-jěl'ĭn) 