Characterization and genomic localization of the mouse Extl2 gene.

W Wuyts, W Van Hul
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引用次数: 7

Abstract

Human EXTL2 is an alpha1,4-N-acetylhexosaminyltransferase involved in the biosynthesis of heparin/heparan sulfate. We have cloned and characterized the mouse homolog of this gene. Mouse Extl2 encodes a 330 amino acid protein that is 87% identical to its human counterpart. Expression analysis showed that Extl2 is ubiquitously expressed in adult mouse tissues and that the Extl2 transcript is already present in early stages of embryonic development. Determination of the genomic structure revealed that the Extl2 gene spans five exons within a 10-kb region and that the genomic organization between mouse and man is well preserved, with conservation of the number and position of all five exons. By radiation hybrid analysis, Extl2 was mapped to mouse chromosome 3, in a region homologous to the human EXTL2 region on chromosome 1.

小鼠Extl2基因的鉴定和基因组定位。
人类EXTL2是一种参与肝素/硫酸肝素生物合成的α 1,4- n -乙酰己糖氨基转移酶。我们已经克隆并鉴定了该基因的小鼠同源物。小鼠Extl2编码一种330个氨基酸的蛋白质,与人类的对应蛋白有87%相同。表达分析表明,Extl2在成年小鼠组织中普遍表达,并且Extl2转录本已经存在于胚胎发育的早期阶段。基因组结构的测定表明,Extl2基因在一个10kb的区域内跨越5个外显子,并且小鼠和人类之间的基因组组织保持良好,所有5个外显子的数量和位置都保持不变。通过辐射杂交分析,将Extl2定位到小鼠3号染色体上,与人类1号染色体上的Extl2区域同源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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