CHRNA7 and cognitive disorder: In addition to transcripts for the α7 subunit (encoded by CHRNA7), our analysis of gene expression has provided evidence for expression in iPSC-derived neurons of the partially duplicated gene CHRFAM7A. Interestingly, both CHRNA7 and CHRFAM7A have been implicated in cognitive disorders such as schizophrenia [6,7,41,42].