Reference Panel

We currently offer one reference panel for imputation: TOPMed r3.

TOPMed r3

Number of Samples	133,597
Sites (chr1-22)	445,600,184
Chromosomes	1-22, X
Imputation Server	https://imputation.biodatacatalyst.nhlbi.nih.gov/
Website	https://topmed.nhlbi.nih.gov/

Other Reference Panels

Our sister service at the Michigan Imputation Server offers additional reference panels, see here for more details.