EGF Rat

Epidermal Growth Factor Rat Recombinant
Cat. No.
BT3957
Source
Escherichia Coli.
Synonyms
Urogastrone, URG, EGF.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
Greater than 98.0% as determined by(a) Analysis by RP-HPLC.
(b) Analysis 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

Epidermal Growth Factor Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 53 amino acids and having a molecular mass of 6151 Dalton.
The Rat EGF is purified by proprietary chromatographic techniques.

Product Specs

Introduction
Epidermal growth factor (EGF) plays a crucial role in cell differentiation, particularly in specific cell types within living organisms. It acts as a strong mitogenic factor, stimulating cell division in various cultured cells originating from both ectodermal and mesodermal lineages. The EGF precursor is thought to be a membrane-bound molecule that undergoes proteolytic cleavage to produce the active 53-amino acid peptide hormone responsible for promoting cell division.
Description
Recombinant Rat Epidermal Growth Factor, produced in E. coli, is a single-chain polypeptide that lacks glycosylation. It comprises 53 amino acids, resulting in a molecular weight of 6151 Daltons. The purification process of Rat EGF involves proprietary chromatographic techniques.
Physical Appearance
White, lyophilized powder that has been sterile filtered.
Formulation
Rat EGF undergoes lyophilization from a 0.2 µm filtered solution concentrated to 1.0 mg/ml in phosphate-buffered saline (PBS) at pH 7.4.
Solubility
For reconstitution of lyophilized Rat EGF, it is advised to use sterile water at a concentration of at least 100 µg/ml. This solution can then be further diluted into other aqueous solutions as needed.
Stability
Lyophilized Rat EGF demonstrates stability at room temperature for a period of 3 weeks; however, it is recommended to store it desiccated at a temperature below -18°C. After reconstitution, Rat EGF should be kept at 4°C for 2-7 days. For long-term storage, freezing below -18°C is recommended. To enhance stability during storage, adding a carrier protein such as 0.1% HSA or BSA is advisable. It is important to avoid repeated freeze-thaw cycles.
Purity
The purity of Rat EGF is determined to be greater than 98.0% using the following methods: (a) Reverse-phase high-performance liquid chromatography (RP-HPLC) analysis and (b) Sodium dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) analysis.
Biological Activity
The ED50 value, calculated based on the dose-dependent proliferation of murine BALB/c 3T3 cells, is less than 0.1 ng/ml. This corresponds to a specific activity greater than 10,000,000 units/mg.
Synonyms
Urogastrone, URG, EGF.
Source
Escherichia Coli.
Amino Acid Sequence
NSNTGCPPSY DGYCLNGGVC MYVESVDRYV CNCVIGYIGE RCQHRDLRWW KLR.

Product Science Overview

Introduction

Epidermal Growth Factor (EGF) is a potent mitogenic factor that plays a crucial role in the regulation of cell growth, proliferation, and differentiation. Initially discovered by Stanley Cohen and Rita Levi-Montalcini, EGF has since been extensively studied for its biological significance and therapeutic potential . The recombinant form of EGF derived from rats (Rat Recombinant EGF) has been widely used in research to understand its molecular attributes and signaling pathways.

Molecular Structure and Production

Rat Recombinant EGF is a non-glycosylated polypeptide chain consisting of 53 amino acids with a molecular mass of approximately 6.3 kDa . It is produced in Escherichia coli (E. coli) using recombinant DNA technology, which involves inserting the gene encoding EGF into the bacterial cells. The bacteria then express the EGF protein, which is subsequently purified using chromatographic techniques .

Biological Activity

EGF exerts its effects by binding to the Epidermal Growth Factor Receptor (EGFR), a receptor tyrosine kinase on the cell surface. This binding triggers a cascade of downstream signaling pathways that promote cell proliferation and differentiation . The biological activity of Rat Recombinant EGF is determined by its ability to stimulate the proliferation of mouse BALB/c 3T3 cells, with an effective dose (ED50) of less than 0.1 ng/mL .

Applications in Research

Rat Recombinant EGF has been instrumental in various research applications, including:

  • Cell Culture Studies: EGF is used to stimulate the growth of epithelial and epidermal cells in vitro, providing a model to study cell signaling and proliferation .
  • Wound Healing: EGF has been investigated for its potential to enhance wound healing by promoting cell migration and proliferation at the wound site .
  • Cancer Research: Given its role in cell proliferation, EGF and its receptor EGFR are studied in the context of cancer to understand tumor growth and develop targeted therapies .
Storage and Stability

Lyophilized Rat Recombinant EGF is stable at room temperature for up to three weeks but should be stored desiccated below -18°C for long-term storage . Upon reconstitution, it should be stored at 4°C for short-term use and below -18°C for long-term use, with the addition of a carrier protein to prevent freeze-thaw cycles .

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