Table 1. Strain-dependent expression of genes in the mouse hippocampus.

	genomic locus	differentially expressed gene
wild type: C57BL/6J vs BALB/c	all	588
	all	961
dab1 KO: C57BL/6J vs BALB/c	Chromosome 1 (D1Mit215-D1Mit90)	7
	Chromosome 12 (D12Mit12-D12Mit18)	40
	Chromosome 16 (D16Mit94-D16Mit86)	0

We examined expression of mRNA transcripts by microarray between C57BL6 and BALB/c wild-type or dab1−/− mutant mice. Genes that were differentially expressed above a threshold of 1.5 fold were scored and examined for chromosomal position related to QTLs that are associated with Tau hyperphosphorylation in dab1−/− mutants (Brich et al., 2003).