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一般說明
研究领域:细胞信号传导
牛乳脂蛋白脂酶(LPL)是一种糖蛋白。它以同型二聚体形式存在,由两个N-连接的寡糖组成。它具有热稳定性。脂蛋白脂肪酶是一种存在于血管内皮细胞表面的酶,它固定在毛细血管壁上。它主要存在于脂肪组织、心脏和肌肉组织中。它由肝外组织合成,尤其是脂肪细胞,编码该蛋白的基因位于染色体8p22上。
牛乳脂蛋白脂酶(LPL)是一种糖蛋白。它以同型二聚体形式存在,由两个N-连接的寡糖组成。它具有热稳定性。脂蛋白脂肪酶是一种存在于血管内皮细胞表面的酶,它固定在毛细血管壁上。它主要存在于脂肪组织、心脏和肌肉组织中。它由肝外组织合成,尤其是脂肪细胞,编码该蛋白的基因位于染色体8p22上。
應用
牛乳脂蛋白脂酶已用于:
- 研究脂蛋白脂酶作为补充剂对乳腺癌细胞MDA-MB-231中DiI(1,1′-双十八烷基-3,3,3′-四甲基吲哚碳菁高氯酸盐)-极低密度脂蛋白(VLDL)摄取的影响
- 处理人脑微血管内皮细胞(HBMEC)以脂解富含三酰甘油的脂蛋白(TGRL)
- 检测脂蛋白脂酶对正常人星形胶质细胞基因表达的影响
- 在原代肝细胞分离和脂蛋白结合中鉴定T2DM小鼠的硫代抑制对糖尿病性血脂异常的改善作用。
- 在转化生长因子- β (TGF-β1)免疫测定中,检测TGF-β信号系统是否调节脂解产物诱导的人主动脉内皮细胞(HAEC)中活化转录因子3 (ATF3)的上调和激活。
- 人类TGRL分离。
- 用HSPG结合LPL进行体外脂肪分解试验,研究人载脂蛋白 E2(Lys146→Gln)对脂蛋白代谢的影响。
- 水解甘油三酯。
- 建立体外胃肠消化模型,研究叶绿素对脂质消化的影响。
生化/生理作用
牛乳脂蛋白脂酶(LPL)具有最高的脂解活性。它与酪蛋白胶束有关。LPL调节甘油三酯利用度,具有位点特异性。脂酶通常催化甘油三酯的脂裂解,尤其是甘油三酯sn-1和sn-3位的脂肪酸。已知LPL可显著影响动脉粥样硬化的进展。研究表明,晚期动脉粥样硬化患者肝素后血浆中LPL质量和活性增加。
單位定義
以 p -硝基苯丁酸酯为底物,在 37°C、pH 7.2 条件下,1 个单位每分钟将释放 1.0 nmol p -硝基苯酚。
外觀
用 3.8 M 硫酸铵、0.02 MTris HCl (pH 8.0) 混悬
準備報告
亲和纯化
儲存類別代碼
11 - Combustible Solids
水污染物質分類(WGK)
WGK 3
閃點(°F)
Not applicable
閃點(°C)
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
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