UASt regulatory sequences drive expression of the Hsap\NLGN3 open reading frame, tagged at the C-terminal end with three copies of Tag:HA. The ORF (originally amplified from the ccsbBroadEn_08371 clone) has been mutated to carry p.R195W (c.583C>T), a variant associated with Autism Spectrum disorder (PMID: 25363768).