a b c Supplementary Fig. 1. mRNA expression measured by RT-PCR of cell-type specific genes in astrocytes and neurons isolated by FACS from cerebral hemispheres in vivo from FVB/NTg(GFAP-GFP)14Mes/J or B6.Cg-Tg(Thy1-YFPH)2Jrs/J mice. Southern blot showing mRNAs for (a) connexin-30, GFAP, Glt-1 and Fgfr3 (astrocyte markers), (b) Gabra-1, KCC2, Snap25 and Synaptotagmin 1 (neuron markers) and (c) Connexin-47, Mag, Mog and Mbp (oligodendrocyte markers). The sizes of the PCR products are listed in Supplementary Table 1. From the left, the first sample is DNA ladder, the 2nd and 3rd samples neurons, the 4th and 5th samples astrocytes, and the last one intact brain.(From Fu et al., Neurochem. Int., 2012, in press) Primers for RT-PCR Protein Gene Connexin-30a Gjb6 Sequence Size Forward Reverse 5’ GGCTTGGTTTTCAGAGATAG 3’ 5’ GAGTTGTGTTACCTGCTGC 3’ 369 bp Gfap Forward Reverse 5’ TGCTAGCTACATCGAGAAGG 3’ 5’ TCCTCTGTCTCTTGCATGTT 3’ 525 bp Glt-1c Slc1a2 Forward Reverse 5’ ATGGCATCAACCGAGGGTG 3’ 5’ GCTGGATGCTAAAGCCAGC 3’ 339 bp Fgfr3d Fgfr3 Forward Reverse 5’ GTCACTGTACTCAAGACTGCAG 3’ 5’ GAAACATTGGCCAGAACAGGAC 3’ 449 bp Gabra-1e Gabra1 Forward Reverse 5’ TGCGACCATAGAACCGAAAGA 3’ 5’ CAGTCGGTCGATTTTGCTGA 3’ 91 bp KCC2f Slc12a5 Forward Reverse 5’ TTCATCAACAGCACGGACAC 3’ 5’ CTTCTTCTTTCCGCCCTCAT 3’ 186 bp Snap25f Snap25 Forward Reverse 5’ GCAGGGTAACAAACGATGCC 3’ 5’ CTTCCCAGCATCTTTGTTGC 3’ 211 bp Syt1 Forward Reverse 5’ GTGAGTGCCAGTCATCCTGAG 3’ 5’ CCTTCATGGTCTTCCCTAAGTC 3’ 340 bp Gjc2 Forward Reverse 5’ CAGATGAGCAATCCAAGTTCACC 3’ 5’ ACTATCTTGAAGACCCAGAAGCG 3’ 112 bp GFAPb Synaptotagminh Connexin-47i Magj Mag Forward Reverse 5’ CACCTCGAGTCGCCTTTGCCATCCTGATT 3’ 5’ TCTCCATGGCCTTGACTCGGATTTCTGCATAC 3’ 366 bp Mogk Mog Forward Reverse 5’ AGGAAGGGACATGCAGCCGGAG 3’ 5’ CTGCATAGCTGCATGACAACTG 3’ 166 bp Mbpj Mbp Forward Reverse 5’ ATGGCATCACAGAAGAGACC 3’ 5’ CATGGGAGATCCAGAGCGGC 3’ 375 bp Supplementary Table 1. Primer sequences used for RT-PCR of cell markers. a. b. c. d. e. f. g. h. i. j. k. from McCulloch et al., 2005. Am. J. Physiol. Renal. Physiol. 289, F1304-F1312. from Yamaguchi et al., 2003. Environ. Toxicol. Pharmacol. 15, 1-8. from Utsunomiya-Tate et al., 1997. FEBS. Lett. 416, 312-316. from Perez-Castro et al., 1995. Genomics 30, 157-162. from Bailey and Toth, 2004. J. Neurosci. 24, 6343-6351. from Zhu et al., 2008. Epilepsy Res. 79, 201-212. from Ikebuchi et al., 1998. Am. J. Physiol. 274, C1496-C1500. From Kwon et al., 1995. Mamm. Genome. 6, 880-881. from Odermatt et al., 2003. J. Neurosci. 23, 4549-4559. from Traka et al., 2008. J. Neurosci. 28, 11537-11549. from Delarasse et al., 2003. J. Clin. Invest. 112, 544-553. Supplementary Methods For determination of mRNA expression by reverse transcription polymerase chain reaction (RT-PCR) cell suspension was prepared by collecting cells in Trizol. RT was performed as previously described by Li et al. (2008). PCR amplification was performed in a Robocycler thermocycler with 0.2 M of forward and reverse nucleotide sequences (primers) and 0.375 units of Taq-polymerase. Initially the template was denatured by heating to 94oC for 2 min, followed by 40 amplification cycles for Connexin-30, GFAP, Glt-1, Fgfr3, Gabra-1, KCC2, Snap25, synaptotagmin, Connexin-47, Mag, Mog and Mbp. Each cycle consisted of three periods, the first for 45 sec at 94oC; the second for 45 sec at 55.4°C for Connexin-30, GFAP, Glut-1, Gabra-1, Synaptotagmin 1 and Mog, at 56°C for Mbp and Fgfr3, and at 63°C for Snap25, KCC2, Connexin-47 and Mag; and the third for 90 sec at 72oC. The final step was extension at 72oC for 10 min. The PCR products were separated by 1% agarose gel electrophoresis, and captured by Fluorchem 5500 (Alpha Innotech Corporation, San Leandro, CA, USA).