Dear Colleagues,

I am trying to determine the prevalence (ideally, in the US) of certain genetic variants. That is, I would like to find out the percentage of the population with certain gene variants. (Specifically, these are: val66met (BDNF); APOE4; tau haplotype.)

I see that this kind of data has been published for certain gene variants (, but I'm not sure that this information is available for most variants. Since I don't have much experience with this kind of question (and even less with using the various NCBI genetics databases), I am seeking your assistance.

If anyone can offer any advice, I would appreciate it. Please feel free to respond to me off-list.


Stuart Moss
Library Director

Nathan Kline Institute - Office of Mental Health
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