title: GABA transporter 1 transcriptional starting site exhibiting tissue specific difference.
abstract: GABA transporter 1(GAT1) takes important roles in multiple physiological processes through the uptake and release of GABA, but the regulation of GAT1 gene expression in different tissues is rarely known. To address the question, first, 5' Rapid amplification of cDNA end (RACE) was used to determine GAT1 transcriptional starting sites in neonatal mouse cerebral cortex and intestine, adult mouse brain and adult rat testis. The products of 5'RACE were confirmed by DNA sequencing. We found that the transcript of GAT1 in neonatal mouse cerebral cortex and adult mouse brain starts at the same site (inside of exon 1), while in mouse intestine, GAT1 starts transcription in intron 1, and in rat testis, the transcript of GAT1 has an additional untranslation exon to the 5' direction.
authors.affiliation: Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai.
authors.forename: X P
authors.initials: XP
authors.lastname: Jin
authors.forename: F
authors.initials: F
authors.lastname: Huang
authors.forename: N
authors.initials: N
authors.lastname: Yang
authors.forename: B F
authors.initials: BF
authors.lastname: Lu
authors.forename: J
authors.initials: J
authors.lastname: Fei
authors.forename: L H
authors.initials: LH
authors.lastname: Guo
mesh_terms: D000375:Aging / Q000235:genetics; D000818:Animals; D000831:Animals, Newborn; D001483:Base Sequence / Q000502:physiology; D001921:Brain / Q000254:growth & development / Q000378:metabolism*; D002352:Carrier Proteins / Q000235:genetics*; D018076:DNA, Complementary / Q000032:analysis / Q000235:genetics / Q000378:metabolism; D005091:Exons / Q000235:genetics; D050485:GABA Plasma Membrane Transport Proteins; D005786:Gene Expression Regulation / Q000235:genetics*; D007413:Intestinal Mucosa / Q000378:metabolism*; D007422:Intestines / Q000254:growth & development; D007438:Introns / Q000235:genetics; D008297:Male; D008565:Membrane Proteins / Q000235:genetics*; D026901:Membrane Transport Proteins; D051379:Mice; D008807:Mice, Inbred BALB C; D008969:Molecular Sequence Data; D021141:Nucleic Acid Amplification Techniques / Q000379:methods; D027361:Organic Anion Transporters; D013737:Testis / Q000254:growth & development / Q000378:metabolism*; D014158:Transcription, Genetic / Q000235:genetics*
chemical_list: D002352:Carrier Proteins; D018076:DNA, Complementary; D050485:GABA Plasma Membrane Transport Proteins; D008565:Membrane Proteins; D026901:Membrane Transport Proteins; D027361:Organic Anion Transporters; C493414:Slc6a1 protein, mouse; C493415:Slc6a1 protein, rat