ELFT:一种指导ELAM-1连接体表达的基因
Cell
|December 21, 1990
概括
研究人员确定了ELFT,一种fucosyltransferase,对ELAM-1配体至关重要. 这种酶是这种酶.
科学领域:
- 细胞粘附 细胞粘附
- 炎症生物学 炎症生物学
- 分子免疫学分子免疫学
背景情况:
- 白细胞内皮细胞粘附分子 (LECCAMs) 参与炎症过程.
- 内皮细胞粘附分子1 (ELAM-1) 调解白细胞与激活的内皮细胞的粘附.
- 针对ELAM-1的特定连接体尚未完全确定.
研究的目的:
- 克隆一种编码一种赋予ELAM-1结合活性的蛋白质的cDNA.
- 为了确定ELAM-1连接体识别的分子基础.
- 为了研究这种酶在炎症调节中的作用.
主要方法:
- 一个cDNA的克隆,被指定为ELFT (ELAM-1合物fucosyltransferase).
- 将ELFT转化为非结合性细胞系,以评估ELAM-1结合性.
- 对编码蛋白质的酶活性和表达模式的分析.
主要成果:
- 克隆的cDNA,ELFT,在转染时赋予ELAM-1结合活性.
- ELFT编码了一种46kd蛋白质,具有α(1,3) 基转移酶活性.
- ELFT表达特异于与ELAM-1结合的细胞类型.
结论:
- 一个fucosylated碳水化合物结构可能是ELAM-1配体的重要组成部分.
- ELFT 是一种关键酶,用于合成 ELAM-1 配体.
- 在活体中,ELFT在调节炎症事件方面发挥着重要作用.
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