GADD45G Human

Growth Arrest and DNA-Damage-Inducible Gamma Human Recombinant
Cat. No.
BT30766
Source
Escherichia Coli.
Synonyms
DDIT2, GADD45gamma, GADD45G, Growth arrest and DNA-damage-inducible protein GADD45 gamma, Cytokine-responsive protein CR6, DNA-damage-inducible transcript 2, DDIT-2, CR6, GRP17.
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

GADD45G Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 159 amino acids and having a molecular mass of 17.1 kDa.

Product Specs

Introduction
Belonging to the nuclear protein family, GADD45G interacts with various proteins whose transcript levels increase in response to stressful growth arrest conditions and DNA-damaging agents. GADD45G plays a role in cellular response to environmental stresses by mediating the activation of the p38/JNK pathway. This is achieved through protein binding and activation of MTK1/MEKK4 kinase, an upstream activator of both p38 and JNK MAPKs. While GADD45G acts as a novel tumor suppressor, it is frequently epigenetically inactivated in various tumors. Notably, GADD45G mRNA expression is down-regulated in hepatocellular carcinoma. When transfected into Hep-G2 cells, GADD45G induces cell cycle arrest at the G2/M transition. Androgen-induced GADD45 Gamma expression involves de novo protein synthesis. Overexpression of GADD45 Gamma in prostate cell lines leads to growth inhibition and morphological changes, indicating its role in androgen-induced differentiation.
Description
Recombinant human GADD45G, produced in E. coli, is a single, non-glycosylated polypeptide chain consisting of 159 amino acids. It has a molecular weight of 17.1 kDa.
Physical Appearance
The product is a clear, colorless solution that has been sterilized by filtration.
Formulation
The GADD45G protein solution is provided at a concentration of 1 mg/ml in a buffer consisting of 20 mM Tris-HCl at pH 7.
Stability
For short-term storage (up to 2-4 weeks), the product should be kept at 4°C. For extended storage, it is recommended to store the product frozen at -20°C.
To ensure long-term stability, the addition of a carrier protein (either HSA or BSA) at a concentration of 0.1% is advised.
Repeated freezing and thawing of the product should be avoided.
Purity
The purity of the GADD45G protein is greater than 95.0% as determined by SDS-PAGE analysis.
Synonyms
DDIT2, GADD45gamma, GADD45G, Growth arrest and DNA-damage-inducible protein GADD45 gamma, Cytokine-responsive protein CR6, DNA-damage-inducible transcript 2, DDIT-2, CR6, GRP17.
Source
Escherichia Coli.
Amino Acid Sequence
MTLEEVRGQD TVPESTARMQ GAGKALHELL LSAQRQGCLT AGVYESAKVL NVDPDNVTFC VLAAGEEDEG DIALQIHFTL IQAFCCENDIDIVRVGDVQR LAAIVGAGEE AGAPGDLHCI LISNPNEDAW KDPALEKLSL FCEESRSVND WVPSITLPE.

Product Science Overview

Gene and Protein Structure

The GADD45G gene is located on chromosome 9 in humans . It is also known by several aliases, including CR6, DDIT2, GRP17, and OIG37 . The protein encoded by this gene is involved in several processes, including sexual development, human-specific brain development, tumor suppression, and the cellular stress response .

Function and Mechanism

GADD45G plays a crucial role in the regulation of growth and apoptosis. It mediates the activation of stress-responsive MTK1/MEKK4 MAPKKK pathways . This protein responds to environmental stresses by activating the p38/JNK pathway via MTK1/MEKK4 kinase . The activation of these pathways leads to various cellular responses, including DNA repair, cell cycle arrest, and apoptosis.

Expression and Regulation

The expression of GADD45G is highly induced under stressful growth arrest conditions and treatment with DNA-damaging agents . It is highly expressed in the placenta and other tissues . The protein interacts with several other proteins involved in DNA repair, cell cycle control, apoptosis, and senescence .

Clinical Significance

Low expression of GADD45G has been associated with various types of cancer . Its role as a tumor suppressor was discovered in 1999 . The protein’s ability to mediate stress responses and regulate cell cycle arrest makes it a critical component in maintaining cellular integrity and preventing tumorigenesis.

Historical Background

GADD45G was originally cloned by Beadling under the name CR6 in 1993 . It was identified as an immediate early response gene in T lymphocytes induced by IL-2 . Its role as a tumor suppressor and its regulation by Oncostatin M were later discovered, leading to its current understanding as a critical stress response protein .

Research and Applications

Research on GADD45G continues to explore its role in various cellular processes and its potential therapeutic applications. The recombinant form of this protein is used in various research studies to understand its function and mechanism in greater detail.

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