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IPTG
Description
IPTG is an analog of galactose that is non-metabolizable and inactivates the lac repressor to induce synthesis of β-galactosidase in E. coli. The expression of cloned genes under the control of the lac operon is induced by IPTG. It is also a substrate for thigalactoside transacetylase and has been reported to induce penicillinase in bacteria.
Product Specifications
| Catalog ID | I2481 |
|---|---|
| Name(s) | IPTG Isopropyl-beta-D-thiogalactoside |
| CAS # | 367-93-1 |
| Formula | C9H18O5S |
| MW | 238.30 g/mol |
| Grade | MOLECULAR BIOLOGY GRADE |
| Storage/Handling | Store desiccated at -20°C. Protect from light. |
IPTG Product Information
IPTG is an analog of galactose that is non-metabolizable and inactivates the lac repressor to induce synthesis of β-galactosidase in E. coli. The expression of cloned genes under the control of the lac operon is induced by IPTG. It is also a substrate for thigalactoside transacetylase and has been reported to induce penicillinase in bacteria.
IPTG is commonly used in cloning procedures that require induction of β-galactosidase and is most often used with X-Gal (Gold Bio #X4281C) or Bluo-Gal (Gold Bio #B-673) for blue/white colony screening or Magenta-Gal (Gold Bio #B-378) for red/white colony screening of bacterial colonies. IPTG is also used in the induction of recombinant proteins. In those systems, a protein of interest is encoded downstream of the IPTG inducible promoter. In the presence of IPTG, the protein of interest is induced in the cell culture. The culture can then be lysed and the protein expressed and purified through a number of methods, including His Tag or GST purification systems (for proteins with ligand tags). GoldBio IPTG is made from a synthetic, non-animal origin.
SPECIFICATIONS
IPTG
Isopropyl-beta-D-thiogalactoside
MOLECULAR BIOLOGY GRADE
Forumla: C 9H18O5S
MW: 238.30 g/mol
Purity: >99% by HPLC
Dioxane free
Storage/Handling: Store dry at -20°C. Protect from light.
PubChem Chemical ID: 656894
IPTG Resources
IPTG Protein Induction &Extraction Protocol
IPTG Induction & Extraction of proteins by Arur and Nayak. Schedl Lab, Wash U. St. Louis
IPTG Stability Report
IPTG - Stability Report 0-36 months
Blue-White Screening of Bacterial Colonies Utilizing X-Gal and IPTG Plates
Protocol for adding X-Gal and IPTG to agar or plates for Blue-White screening method of bacterial transformation
IPTG Stock Solution
IPTG Stock Solution - 100 X (100mM)
COA - I2481C
Certificate of Analysis - IPTG
SDS (MSDS) - IPTG
Safety Data Sheet
IPTG Videos
