Flagellin 22 (flg22) – Other Categories

Flagellin is a structural protein which forms the major portion of bacterial flagellar filaments. The N- and C-terminals of flagellin are highly conserved regions, whereas the central core can vary greatly between bacterial species. Flagellin 22 (flg22) is the stretch of amino acids most conserved across bacterial species and is located towards the N-terminal of the flagellin protein.Flg22 is a potent elicitor of plant immune responses and is recognised in plants by the membrane bound leucine-rich repeat-receptor kinase FLAGELLIN SENSITIVE 2 (FLS2). Flg22 induces defence gene expression to trigger both local and systemic immune responses and is thus widely used in plant defence studies.

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