| http://purl.uniprot.org/citations/25528004 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/25528004 | http://www.w3.org/2000/01/rdf-schema#comment | "AimsIA-2 is a transmembrane protein found in the dense-core vesicles (DCV) of neuroendocrine cells and one of the major autoantigens in type 1 diabetes. DCV are involved in the secretion of hormones (e.g., insulin) and neurotransmitters. Stimulation of pancreatic β cells with glucose upregulates the expression of IA-2 and an increase in IA-2 results in an increase in the number of DCV. Little is known, however, about the promoter region of IA-2 or the transcriptional factors that regulate the expression of this gene.MethodsIn the present study, we constructed eight deletion fragments from the upstream region of the IA-2 transcription start site and linked them to a luciferase reporter.ResultsBy this approach, we have identified a short bp region (-216 to +115) that has strong promoter activity. We also identified a transcription factor, cAMP responsive element-binding protein (CREB), which binds to two CREB-related binding sites located in this region. The binding of CREB to these sites enhanced IA-2 transcription by more than fivefold. We confirmed these findings by site-directed mutagenesis, chromatin immunoprecipitation assays and RNAi inhibition.ConclusionBased on these findings, we conclude that the PKA pathway is a critical, but not the exclusive signaling pathway involved in IA-2 gene expression."xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.org/dc/terms/identifier | "doi:10.1007/s00592-014-0689-5"xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/author | "Cai T."xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/author | "Hirai H."xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/author | "Xu H."xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/author | "Notkins A.L."xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/date | "2015"xsd:gYear |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/name | "Acta Diabetol"xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/pages | "573-580"xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/title | "The minimal promoter region of the dense-core vesicle protein IA-2: transcriptional regulation by CREB."xsd:string |
| http://purl.uniprot.org/citations/25528004 | http://purl.uniprot.org/core/volume | "52"xsd:string |
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