Zeocin
Selection Reagent
● 産品規格
Zeocin粉末型
名稱
|
貨号
|
規格
|
貯存溫度
|
運輸溫度
|
Zeocin (幹粉)
|
RT250-F
|
100 mg
|
-20℃
|
常溫
|
Zeocin 溶解液
|
|
1 ml
|
4℃
|
常溫
|
● 産品說(shuō)明
Zeocin?
Reagent is a member of the bleomycin antibiotic family. Resistance is conferred
by the Sh ble gene which encodes a 13,665 dalton protein. In cells expressing
the protein, Zeocin? is prevented from binding and cleaving the cellular DNA.
Zeocin? is effective on most aerobic cells and can be used for selection in
mammalian and insect cell lines, yeast, and bacteria. The amount of Zeocin?
required for selection will vary between 50-2000 μg/ml (typically 300μg /ml)
depending on the cell type.
Zeocin可(kě)選擇Sh
ble基因表達的細胞。與現在使用的其他(tā)動物細胞标記物無交叉抗性。因此這種抗生(shēng)素可(kě)用來(lái)分(fēn)離(lí)對其他(tā)篩選劑(如(rú):慶大(dà)黴素,潮黴素)有抗性的克隆。Zeocin是一種屬于争光(guāng)黴素家族的糖蛋白(bái)抗生(shēng)素,在體(tǐ)内能作(zuò)用于大(dà)多數細菌(包括E. coli)、真菌(如(rú):酵母菌)、植物細胞、動物細胞。
● 液體(tǐ)Zeocin可(kě)用于細胞培養。
●
用于篩選轉化株的Zeocin濃度根據pH值和鹽濃度改變。pH越高,鹽濃度越低,Zeocin活性越大(dà)。
●
普通大(dà)腸杆菌菌株篩選可(kě)在25
μg/ml zeocin濃度的低鹽LB瓊脂培養基(yeast
extract 5 g/L, Tryptone 10 g/L, NaCl 5 g/L, Agar 15 g/L,pH 7.5)中進行,pH調至7.5
。
● 動物細胞篩選:根據不同細胞系從(cóng)100 到
750 μg/ml。
● 植物細胞篩選:根據不同的細胞種類和培養基從(cóng)50 到
250 μg/ml 。
●
酵母篩選:取決于種屬和培養基,S. cerevisiae Sh ble轉化株在50
μg/ml 濃度的YPD培養基中篩選,pH調至7.0。
● 粉末型配制方法:
取1 ml Zeocin溶解液加到Zeocin幹粉中,徹底溶解,用0.22
μm 一次性濾器抽濾除菌,即配成1
ml(100mg/ml)的Zeocin溶液,-20℃保存。
● 技術(shù)參數:
Empirical formula: C55H85O21N20S2Cu·HCl
Molecular weight: 1525
CAS:11006-33-0