GSTM1 Mouse, His

Glutathione S-Transferase M1 Mouse Recombinant, His Tag
Cat. No.
BT7152
Source
Escherichia Coli.
Synonyms
GST1, GTH4, GTM1, GSTM1-1, MGC26563, GSTM1a-1a, GSTM1b-1b, GSTM1, Glutathione S-transferase Mu 1, GST class-mu 1, Glutathione S-transferase GT8.7, pmGT10, GST 1-1.
Appearance
Sterile Filtered colorless solution.
Purity
Greater than 95.0% as determined by SDS-PAGE.
Usage
THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

GSTM1 Mouse Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 238 amino acids (1-218 a.a.) and having a molecular mass of 28.1kDa. The GTM1 is fused to a 20 amino acid His-Tag at N-Terminus and purified by proprietary chromatographic techniques.

Product Specs

Introduction
Glutathione S-transferases (GSTs) are a family of enzymes that play a crucial role in detoxification by catalyzing the conjugation of glutathione to a wide variety of electrophilic substrates, including carcinogens, therapeutic drugs, and products of oxidative stress. Among the various classes of GSTs, the mu class, encoded by genes located on chromosome 1p13.3, is highly polymorphic. These genetic variations can influence an individual's susceptibility to carcinogens and their response to certain drugs. Notably, individuals with null mutations in the mu class GST genes may exhibit an increased risk of developing certain types of cancer. The association between GST polymorphisms and cancer risk highlights the significance of these enzymes in cellular defense mechanisms and their potential as biomarkers for disease susceptibility.
Description
Recombinant GSTM1 from mouse, expressed in E. coli, is a purified protein. It is a single, non-glycosylated polypeptide chain with 238 amino acids (amino acids 1-218) and a molecular weight of 28.1 kDa. A 20 amino acid His-tag is present at the N-terminus of the protein. Purification is achieved through proprietary chromatographic techniques.
Physical Appearance
Clear, colorless solution that has been sterilized by filtration.
Formulation
The GSTM1 protein is supplied in a solution containing 20 mM Tris-HCl buffer at pH 8.0, 1 mM DTT (dithiothreitol), and 10% glycerol.
Stability
For short-term storage (up to 4 weeks), the product can be stored at 4°C. For extended storage, it is recommended to freeze the product at -20°C. To ensure long-term stability during frozen storage, it is advisable to add a carrier protein such as HSA (human serum albumin) or BSA (bovine serum albumin) to a final concentration of 0.1%. Repeated freezing and thawing of the product should be avoided.
Purity
The purity of the GSTM1 protein is determined to be greater than 95.0% using SDS-PAGE analysis.
Biological Activity
The specific activity of the GSTM1 enzyme is measured to be less than 11 units per milligram of protein. This activity is defined as the amount of enzyme required to catalyze the conjugation of 1.0 micromole of 1-chloro-2,4-dinitrobenzene (CDNB) with reduced glutathione per minute at a pH of 6.5 and a temperature of 25°C.
Synonyms
GST1, GTH4, GTM1, GSTM1-1, MGC26563, GSTM1a-1a, GSTM1b-1b, GSTM1, Glutathione S-transferase Mu 1, GST class-mu 1, Glutathione S-transferase GT8.7, pmGT10, GST 1-1.
Source
Escherichia Coli.
Amino Acid Sequence

MGSSHHHHHH SSGLVPRGSH MPMILGYWNV RGLTHPIRML LEYTDSSYDE KRYTMGDAPD FDRSQWLNEK FKLGLDFPNL PYLIDGSHKI TQSNAILRYL ARKHHLDGET EEERIRADIV ENQVMDTRMQ LIMLCYNPDF EKQKPEFLKT IPEKMKLYSE FLGKRPWFAG DKVTYVDFLA YDILDQYRMF EPKCLDAFPN LRDFLARFEG LKKISAYMKS SRYIATPIFS KMAHWSNK.

Product Science Overview

Glutathione S-Transferase M1 (GSTM1)

GSTM1 is one of the isoforms of GST and is encoded by the GSTM1 gene. This enzyme is particularly important in the metabolism of carcinogens, drugs, and products of oxidative stress. The GSTM1 gene is polymorphic, meaning that there are variations in the gene sequence among individuals, which can affect the enzyme’s activity and, consequently, an individual’s susceptibility to certain diseases.

Recombinant GSTM1

Recombinant GSTM1 refers to the enzyme produced through recombinant DNA technology. This involves inserting the GSTM1 gene into an expression vector, which is then introduced into a host organism, such as E. coli, to produce the enzyme in large quantities. The recombinant enzyme can be tagged with a histidine tag (His Tag) to facilitate its purification and detection.

His Tag

A His Tag is a string of histidine residues (usually six) added to either the N- or C-terminus of a protein. This tag allows for easy purification of the recombinant protein using metal affinity chromatography, as histidine residues have a high affinity for divalent metal ions like nickel or cobalt. The His Tag also aids in the detection of the protein using anti-His antibodies.

Production and Purification

The production of recombinant GSTM1 involves cloning the GSTM1 gene into an expression vector that includes a His Tag sequence. The vector is then introduced into a host organism, such as E. coli, where the recombinant protein is expressed. The His Tag allows for the purification of the protein using nickel or cobalt affinity chromatography .

Applications

Recombinant GSTM1 with a His Tag is widely used in research to study the enzyme’s function, structure, and interactions with other molecules. It is also used in drug development to screen for potential inhibitors of GSTM1, which could be used to enhance the efficacy of chemotherapy drugs by preventing the detoxification of these drugs by GSTM1.

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