LI ET AL. SUPPLEMENTAL MATERIAL ATF3 Ad-virus: Infection (hrs): 0 4 8 16 24 ATF3 Actin 050207 PDX1 Real Time PCR 050207 PDX1 Real Time PCR S. FIG. 1 MIN6 cells050207 were infected PDX1 Real Timewith PCR Ad-tTA plus Ad-ATF3 for 0, 4, 8, 16 or 24h as 050207 PDX1 Real Time PCR indicated, followed by immunoblot for ATF3 and actin. 1 Ad-β-Gal Ad-BGal Ad-ATF3 0 16 0 8 16 8 0.5 0.5 0.00 1 Ad-ATF3 0.5 168 8 0 8 16 16 16 Ad-BGal 050207 PDX1 Real Time PCR Ad-β-Gal Ad-BGal Ad-ATF3 B Relative PDX1 mRNA 0.5 Relative PDX1 mRNA 1.01 Relative PDX1 mRNA A 0.5 050207 PDX1 Real Time 050207 PCRPDX1 Real Time PCR 1.01 Relative PDX1 mRNA Ad-BGal Relative Pdx1 mRNA Relative PDX1 mRNA Relative PDX1 mRNA 1 Ad-ATF3 Ad-BGal Ad-BGal Ad-BGal Ad-ATF3 Ad-ATF3 Ad-ATF3 0.5 0.5 0.00 Ex-4 8 16 16 S. FIG. 2 The steady-state Pdx1 mRNA levels in the absence or presence of ATF3 expression. A: MIN6 cells were infected with Ad-tTA plus Ad-β-Gal or Ad-ATF3 for 8 or 16 h as indicated, followed by qRT-PCR for Pdx1. The standardized Pdx1 mRNA level (against actin) from the vector control at each time point was arbitrarily defined as 1. B: MIN6 cells infected as in A were cultured overnight in normal medium followed by exendin-4 treatment (2.5 nM) in serum free medium for 8 h, and analyzed by qRT-PCR for Pdx1. The standardized Pdx1 mRNA level from the vector control was arbitrarily defined as 1. 1 S. TABLE 1. Primers used for RT-PCR/qRT-PCR and ChIP Assay Gene Species Forward primer (5’ to 3’) Reverse primer (5’ to 3’) RT- ATF3 mouse/rat GAGATGTCAGTCACCAAGTC CAGTTTCTCTGACTCTTTCTGC PCR IRS2 mouse GTGGGTTTCCAGAACGGCCT ATGGGGCTGGTAGCGCTTCA IRS2 rat GTGGGTTTCCAGAACGGCCT TGAGCAGCGTTGGTTGGA Pdx1 mouse/rat GAAATCCACCAAAGCTCACG AATTCCTTCTCCAGCTCCAG β-actin mouse/rat AAGATCAAGATCATTGCTCCTC GGACTCATCGTACTCCTG β-actin rat GGTAAAAAAATGCTGCACTG GGTTTTATAGGACGCCAC α-actin rat AATATGGCTTGGGAAGGG TACCTGCTGCTCTGACTC primer mouse GTGGGTTTCCAGAACGGCCT CCCCCATCCTCAAGGTCAAA set #1 rat primer mouse CTATTACATCCAGAACAGGCG ATGGCAGCTCGGTGCCTTTT rat TTACTCAGAAACACAGTCAC CAACCTCAGATTCCTTTCAG mouse/rat TCTCCTATTACATCCAGAACAGG TCATCAGAGCCATTCACTTGTC ChIP IRS2 GAGTTCTTGTCTCCTGGCTG set# 2 primer set #3 Primer set #4 2