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甘蔗SCL25基因的克隆与生物信息学分析

, PP. 51-57

Keywords: 甘蔗,ScSCL25基因,克隆,生物信息学

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Abstract:

结合电子克隆及RT-PCR获得了甘蔗(Saccharumspp.)花穗中表达的一个SR基因成员。该基因cDNA全长960bp,包含编码209个氨基酸的开放读码框,gDNA序列长2966bp,包含5个内含子。同源性比对表明ScSCL25属于SCL亚家族,命名为ScSCL25(gb:JQ031566)。应用生物信息学工具分析表明:ScSCL25编码蛋白为不稳定亲水性蛋白,含有33个潜在磷酸化位点;无信号肽无跨膜结构域,亚细胞定位于细胞核。该蛋白含有SR基因典型的RRM结构域和SR富集结构域,与玉米等作物的SR蛋白具有较高的同源性。

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