TABLE 1

Primer sequences

Primer	Primer Sequence: 5′ → 3′	Primer Site^a
Rat-mdr1b-forward	AttgctagcGAGGAGCAGGTAAGGTACAG^b	-1074 to -1055^c
Rat-mdr1b-reverse	AttgctagcCTACCTCACGTAACACCTCC^b	+154 to +135^c
Mdr1b/400bp-forward	AttgctagcATGCAACCGTGCACTATCCAGGT^b	-250 to -228^d
Rat-EP4-sense	TCTCTTACATGTACGCGGGCTTCA	+731 to +754^e
Rat-EP4-antisense	GTCTGGCAGGTATAGGAGGGTCTG	+1389 to +1369^e

↵ a Relative to transcription start site.
↵ b Additional 5′-NheI recognition site and the three-base overhang are written in lowercase letters.
↵ c GenBank accession no. L16546.1.
↵ d European Molecular Biology Laboratory accession no. AJ312410.1.
↵ e GenBank accession number D28860.1