Univariate fine-mapping of PD and schizophrenia at Chr17:43.46–44.87 Mb found large credible sets spanning many genes, including MAPT (Allen et al., 2014; Snowden et al., 2015; Origone et al., 2018; Nakayama et al., 2019; Cheng et al., 2020) and CRHR1 (Cheng et al., 2020; Bigdeli et al., 2021) which have been previously implicated in the traits we have analysed. This evidence concerns the gene CRHR1 and schizophrenia.