AvrL567-A is a protein from the fungal pathogen flax which induces plant disease resistance in flax plants [1]. The protein has a novel fold [1].

1: The use of Co2+ for crystallization and structure determination, using a conventional monochromatic X-ray source, of flax rust avirulence protein. Guncar G, Wang CI, Forwood JK, Teh T, Catanzariti AM, Ellis JG, Dodds PN, Kobe B; Acta Crystallogr Sect F Struct Biol Cryst Commun. 2007;63:209-213. PMID:17329816