蛋白及NCBI编号: |
NM_001963.6 |
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宿主: |
E.coli | ||
表达区域: |
Asn971-Arg1023 |
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蛋白长度: |
174aa(含标签) |
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蛋白序列: |
nsdsecplshdgyclhdgvcmyiealdkyacncvvgyigercqyrdlkwwelr |
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分子量: |
约19.9kDa |
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融合标签: |
6×His-SUMO (N端) | ||
纯度: |
≥95% 蛋白电泳 | ||
物理性状: |
液态或冻干粉 | ||
组分: |
0.01M PBS+20%甘油,溶液无菌 | ||
稳定性: 分装后样品在-20℃至-80℃下的稳定性可达6个月,避免反复冻融 | |||
应用: 抗体制备,免疫实验(ELISA,WB),亚细胞定位和互作蛋白鉴定等。 |
别名
Pro-epidermal growth factor; EGF.
背景
人表皮生长因子(EGF)是6-kDa的蛋白质,具有53个氨基酸残基和三个分子内二硫键,通过与细胞表面的同源受体EGFR结合,可以刺激细胞生长、分化和存活。EGF在体内和体外刺激各种表皮和上皮组织的生长,在细胞培养中刺激一些成纤维细胞的生长。这刺激配体诱导的二聚化,激活受体的固有蛋白酪氨酸激酶活性。
酪氨酸激酶活性反过来启动信号转导级联,导致细胞内多种生化变化——细胞内钙水平升高,糖酵解和蛋白质合成增加,某些基因(包括EGFR基因)表达增加,最终导致DNA合成和细胞增殖。
EGF最初被描述为一种在小鼠颌下腺和人尿液中发现的分泌肽。此后,EGF在许多人体组织和体液中被发现,包括血小板、尿液、唾液、牛奶、眼泪和血浆、颌下腺(颌下腺)和腮腺。最初,人类EGF被称为尿毒素。
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