With respect to folding and quality control of immune receptors, it was shown that the Hsp70/Hsp90 organizing co‐chaperone Hop/Sti1, which is involved in the maturation of PRRs, presumably also assists maturation of PRRs involved perception of Potato virus Y (PVY) and becomes recruited into VRCs during infection (Lamm et al., 2017). This evidence concerns the gene STIP1 and infection.