A. The loadings of different cell types on the first two PCs derived
from genes with LGD mutations are shown. Each dot represents a cell type.
Different colors represent the brain regions used to isolate the specific types
of cells, with the same color codes as shown in Supp. Figure S1A. Neurons, glial
cells and unselected RNA samples are represented by triangles, circles, and
squares, respectively.
B. The loadings of cell types on PC1 derived from genes with LGD
mutations (x-axis) are plotted against that derived from the whole dataset
(y-axis). The asterisk indicates cerebellar Grp+ cells that
are known to include both unipolar brush cells and Bergmann glial cells (Doyle, et al., 2008). The squared Pearson
correlation between the two signatures is indicated.
C. Similar to (B), except that the loadings on PC2 are
plotted.
D. Loadings of all cell types on PC2 derived from genes with LGD
mutations (DAMAGES signature) are plotted. The color codes and abbreviation of
each brain region are the same as shown in Supp. Figure S1A. UB: unbound RNA
without selection for specific cell types.