PFN2 and autism spectrum disorder: The human genomic locus 3q25-27, encompassing the PFN2 gene, has been linked to autism spectrum disorder in two past studies on Finnish families in Scandinavia and the USA (AUTS2, now, due to a nomenclature overlap, renamed AUTS8, OMIM: 607373) (Auranen et al., 2002; Coon et al., 2005), but until now no gene inactivating SNVs, CNVs, or microdeletions affecting specifically the PFN2 gene have been reported in exome sequencing studies.