半乳糖苷X-Gal北京供货
更新时间:2017-03-31 09:39:48 信息编号:4457197 发布者IP:123.118.25.210 浏览:42次- 供应商
- 北京生科宇晟科技有限公司 商铺
- 认证
- 资质核验:已通过营业执照认证入驻顺企:第9年主体名称:北京生科宇晟科技有限公司组织机构代码:91110108769377480A
- 报价
- 人民币¥420.00元每1g
- 品牌
- Goldbio
- 型号
- X4281C
- 关键词
- X-Gal,5-溴-4-氯-3-吲哚-β-D-,半乳糖苷,北京供货,生物实验试剂,美国进口原装试剂,试剂生物试剂,
- 所在地
- 北京市海淀区清河安宁里小区一号楼北平房14号
- 联系电话
- 010-62913373
- 销售助理
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产品详细介绍
厂家:Goldbio
产品名称:X-Gal 5-溴-4-氯-3-吲哚-β-D-半乳糖苷
产品货号: X4281C
产品CAS: 7240-90-6
规格和报价:1g/420元 10g/2388元
产品描述:
5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside is most commonly known as X-Gal. X-gal is a histochemical substrate for β-galactosidase which cleaves X-Gal to yield an insoluble blue precipitate.
X-Gal is a mainstay in molecular biology cloning applications in which it is used to detect the activity of β-galactosidase. X-Gal is used to detect the insertion of foreign DNA into the lacZ region of a plasmid DNA. Insertion of DNA into the lacZ region results in the loss of β-galactosidase activity. Bacteria cells that retain active β-galactosidase will result in characteristic blue colonies. Successful disruption of the lacZα gene disrupts the α-complemtation of the β-galactosidase gene and the precipitate does not form, resulting in white colonies.
Many other applications also use X-Gal as a substrate to detect β-galactosidase activity. These include β-galactosidase -antibody linked immunoassays and immunohistochemistry, coliphage detection based on β-galactosidase induction and the detection of micrometastasis formation during tumor progession.
X-gal is commonly used in conjunction with IPTG (GoldBIo #I2481) for blue/white screening.
Product Specifications:
X-Gal;
5-Bromo-4-chloro-3-indoxyl-beta-D-galactopyranoside
MOLECULAR BIOLOGY GRADE
Formula: C14H15BrClNO6
MW: 408.63 g/mol
Purity: Greater than 99% (HPLC)
Solution: Clear (2% in DMF)
Biological Activity: Blue color with Lambda, pUC, and M13
Storage/Handling: Store at -20°C. Protect from Light.
PubChem Chemical ID: 619018
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