Brefeldin A布雷非德菌素A,简称BFA,是一种从真菌中分离的内酯抗生素,是蛋白质运输的特定抑制剂。BFA可抑制coat proteins(如β-COP and ADP-ribosylation factor (ARF))与高尔基体的结合并抑制GDP-GTP交换,破坏高尔基体的结构并抑制其功能,进而特异地阻断蛋白质从内质网(ER)向高尔基体(Golgi)的转运,也会导致膜蛋白分布受损。当作用于肿瘤细胞,BFA主要通过诱导分化和凋亡而发挥其细胞毒性作用。
图1.Brefeldin A化学结构式(CAS. NO: 20350-15-6)
BFA最初曾被用作抗病毒试剂,现在在细胞生物学主要用于研究蛋白转运,也常被用于抑制细胞因子等蛋白的分泌,并用于增强分泌蛋白的免疫染色检测。
图2.翌圣 50502ES03 Brefeldin A外观图
翌圣生物提供高纯度Brefeldin A布雷非德菌素A,纯度≥99%,为溶于DMSO的储存液,浓度5 mg/mL。Brefeldin A常见使用浓度范围为1-50μM。
图3.H1299细胞用Brefeldin A (5 μg/mL)处理,免疫荧光观察Hsp90a和CD63共定位情况,Brefeldin A不影响Hsp90α和CD63的膜转位。(PMID: 32640214)
图4.拟南芥幼苗用BFA (45 μM)处理0、30、60或90分钟,正常磷酸盐(NP;1.25 mM P i)或LP (0 mM P i)条件下,在BFA处理下或BFA冲洗后对BFA小体的观察和计数,结果显示:在NP和LP条件下,SNX1和SNX2a的内吞作用和胞吐作用水平相似;此外,与NP条件下相比,LP条件下PIN2的内吞和胞吐在pldζ2和snx1突变体或在PLD2抑制剂治疗下均未改。(PMID: 31745997)
产品名称 |
产品编号 |
简介 |
Brefeldin A (BFA, 5 mg/mL) |
蛋白转运抑制剂 |
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