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Genomic organization and expression of parkin in Drosophila melanogaster.
Experimental & Molecular Medicine ( IF 12.8 ) Pub Date : 2003-12-04 , DOI: 10.1038/emm.2003.52
Young-Joo Bae 1 , Kwang-Sook Park , Soon-Ja Kang
Affiliation  

We report here the isolation, characterization on genomic structure and expression of the D. melanogaster homolog of human parkin. The 2,122 bp parkin gene sequence contains six exons that form a 1,449 bp transcript encoding a protein of 482 amino acids. 151 bp of 5' and 112 bp of 3' untranslated regions were identified by a combination of 5'-RACE/primer extension and 3'-RACE, respectively. The 5' UTR contains three transcription initiation sites. Neither a classical TATA nor a CAAT box was found in the putative promoter sequence. However, binding sites for AhR-Arnt, AP4, NF1 and GATA transcription factors were identified. Transient transfection analysis of the 5' UTR confirmed its promoter activity in HEK 293 cells and SH-SY5Y neuronal cells using a dual luciferase reporting system. The amino acid sequence of D. melanogaster Parkin exhibits 42%, 43% and 43% identity to that of human, mouse and rat, respectively, representing a 54 kDa protein band via western blot analysis. It shows a high degree of conservation in the Ubiquitin-like domain at the N-terminus (34%), the In-Between RING finger domains (IBR, 65-69%), and the RING finger domains at the C-terminus (56-57%). The expression pattern of D. melanogaster parkin varies during the developmental stages, with the highest expression in the adult stage as measured by competitive RT-PCR. From immunostainings of the embryo, D. melanogaster parkin was expressed slightly higher in the central nervous system (brain and nerve cord) during the late embryonic stage.

中文翻译:

果蝇黑色素蛋白基因组的组织和表达。

我们在这里报告了人类parkin的D. melanogaster同源基因的基因组结构的分离,鉴定和表达。2122 bp的Parkin基因序列包含6个外显子,这些外显子形成1449 bp的转录本,编码482个氨基酸的蛋白质。通过5'-RACE /引物延伸和3'-RACE的组合分别鉴定了151'的5'和112'的3'非翻译区。5'UTR包含三个转录起始位点。在推定的启动子序列中均未发现经典的TATA或CAAT框。但是,AhR Arnt,AP4,NF1和GATA转录因子的结合位点被确定。使用双重荧光素酶报告系统对5'UTR的瞬时转染分析证实了其在HEK 293细胞和SH-SY5Y神经元细胞中的启动子活性。D的氨基酸序列。黑色素蛋白Parkin与人,小鼠和大鼠分别具有42%,43%和43%的同一性,通过蛋白质印迹分析代表54 kDa蛋白带。它在N端的泛素样结构域(34%),RING指间结构域(IBR,65-69%)和C端的RING指结构域( 56-57%)。D. melanogaster parkin的表达模式在发育阶段有所不同,通过竞争性RT-PCR测定,成人阶段的表达最高。根据胚胎的免疫染色,在晚期胚胎阶段,中枢神经系统(大脑和神经索)中的黑腹果蝇D.帕金森蛋白表达略高。通过蛋白质印迹分析代表54 kDa蛋白带。它在N端的泛素样结构域(34%),RING指间结构域(IBR,65-69%)和C端的RING指结构域( 56-57%)。D. melanogaster parkin的表达模式在发育阶段有所不同,通过竞争性RT-PCR测定,成人阶段的表达最高。根据胚胎的免疫染色,在晚期胚胎阶段,中枢神经系统(大脑和神经索)中的黑腹果蝇D.帕金森蛋白表达略高。通过蛋白质印迹分析代表54 kDa蛋白带。它在N端的泛素样结构域(34%),RING指间结构域(IBR,65-69%)和C端的RING指结构域( 56-57%)。D. melanogaster parkin的表达模式在发育阶段有所不同,通过竞争性RT-PCR测定,成人阶段的表达最高。根据胚胎的免疫染色,在晚期胚胎阶段,中枢神经系统(大脑和神经索)中的D. melanogaster parkin表达略高。黑色素帕金菌素在发育阶段有所不同,通过竞争性RT-PCR测定,成人阶段的表达最高。从胚胎的免疫染色来看,D。melanogaster parkin在胚胎晚期处于中枢神经系统(大脑和神经索)的表达水平略高。黑色素帕金菌素在发育阶段有所不同,通过竞争性RT-PCR测定,成人阶段的表达最高。根据胚胎的免疫染色,在晚期胚胎阶段,中枢神经系统(大脑和神经索)中的D. melanogaster parkin表达略高。
更新日期:2019-11-01
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