InterPro domain: IPR004297

Members of this family are found in Solanaceae spp. plants, a taxonomic group (family) that includes pepper and tobacco plant species. Synthesis of these proteins is induced by Tobacco mosaic virus and salicylic acid [ 1 ]; indeed they are thought to be involved in the development of systemic acquired resistance (SAR) after an initial hypersensitive response to microbial infection [ 2 , 2 ]. SAR is characterised by long-lasting resistance to infection by a wide range of pathogens, extending to plant tissues distant from the initial infection site [ 3 ].

1. A new multigene family inducible by tobacco mosaic virus or salicylic acid in tobacco. Mol. Plant Microbe Interact. 5, 513-5
2. Overproduction of salicylic acid in plants by bacterial transgenes enhances pathogen resistance. Nat. Biotechnol. 18, 779-83