Probing of keratinocyte λgt11 cDNA library with the PV IgG eluted from a 75 kD band that stained epidermis in pemphigus-like intercellular pattern and caused acantholysis in the keratinocyte monolayers revealed a novel type of AChRs, termed pemphaxin (a.k.a. annexin 9) [62]. This evidence concerns the gene ANXA9 and pemphigus.