技术要点 相关参数(PARAMETERS OF PRODUCTS)
中文品名: 异丙基-β-D-硫代半乳糖苷
商品名称: Isopropyl β-D-1-Thiogalactopyranoside
英文简称: IPTG
产品别名: Isopropyl β-D-Thiogalactoside
产品产地: Sigma-I5502 / Merck-420322
通用CAS : 367-93-1
产品纯度: Sigma ≥99%, Merck ≥98%
产品性状: 白色或白色粉末,溶于水后呈清亮无色液体
分子结构: 详见下图(下)
分 子 式: C9H18O5S
分 子 量: 238.30
保存温度: 2-8°C冷藏保存
包装规格: 1G, 5G, 25G, 100G, 1KG
库存信息: 备有现货,北京地区可次日交货,外地2-4天到达
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IPTG 产品性质
IPTG is commonly used in cloning procedures that require induction of β-galactosidase activity. It is used in conjunction with X-Gal or Bluo-Gal in blue-white selection of recombinant bacterial colonies that induce expression of the lac operon in Escherichia coli. IPTG functions by binding to the lacI repressor and altering its conformation, which prevents the repression of the β-galactosidase coding gene lacZ.
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[此贴子已经被作者于2009-3-4 8:53:10编辑过]