VEGF (121 a.a.) Mouse

Vascular Endothelial Growth Factor (121 a.a.) Mouse Recombinant
Cat. No.
BT6238
Source
Escherichia Coli.
Synonyms
Vascular endothelial growth factor A, VEGF-A, Vascular permeability factor, VPF, VEGF, MGC70609.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
Greater than 97.0% 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

Vascular Endothelial Growth Factor-121 Mouse Recombinant produced in E.Coli is a homodimer, non-glycosylated, polypeptide chain containing 121 amino acids and having a molecular mass of 28.4 kDa.
Recombinant Mouse VEGF-121 is a truncated version of Murine VEGF-165.
The VEGF-121 is purified by proprietary chromatographic techniques.

Product Specs

Introduction
Vascular endothelial growth factor (VEGF) is a key signaling protein for vasculogenesis and angiogenesis. Although primarily known for its effects on vascular endothelial cells, VEGF also influences other cell types like monocytes/macrophages, neurons, cancer cells, and kidney epithelial cells. VEGF contributes to increased vascular permeability, angiogenesis, vasculogenesis, endothelial cell growth, cell migration, and apoptosis inhibition. In vitro studies demonstrate its ability to stimulate endothelial cell mitogenesis and migration. VEGF, initially known as vascular permeability factor, acts as a vasodilator and enhances microvascular permeability. Elevated levels of VEGF are linked to POEMS syndrome (Crow-Fukase syndrome), while mutations in the VEGF gene are associated with both proliferative and nonproliferative diabetic retinopathy.
Description
Recombinant Mouse VEGF-121, produced in E. coli, is a non-glycosylated, homodimeric polypeptide chain comprising 121 amino acids. This truncated version of Murine VEGF-165 has a molecular mass of 28.4 kDa. Purification is achieved through proprietary chromatographic techniques.
Physical Appearance
Sterile Filtered White lyophilized powder.
Formulation
The protein solution (1 mg/ml) was lyophilized without any additives.
Solubility
For reconstitution, dissolve the lyophilized VEGF-121 in sterile 18 MΩ-cm H2O to a concentration of at least 100 µg/ml. Further dilutions can be prepared using other aqueous solutions.
Stability
Lyophilized VEGF-121 remains stable at room temperature for up to 3 weeks. For long-term storage, store desiccated below -18°C. After reconstitution, store VEGF-121 at 4°C for 2-7 days. For future use, store below -18°C. Adding a carrier protein (0.1% HSA or BSA) is recommended for extended storage. Avoid repeated freeze-thaw cycles.
Purity
Purity exceeding 97.0% as determined by: (a) RP-HPLC analysis. (b) SDS-PAGE analysis.
Synonyms
Vascular endothelial growth factor A, VEGF-A, Vascular permeability factor, VPF, VEGF, MGC70609.
Source
Escherichia Coli.
Amino Acid Sequence
MAPTTEGEQK SHEVIKFMDV YQRSYCRPIE TLVDIFQEYP DEIEYIFKPS CVPLMRCAGC CNDEALECVP TSESNITMQI MRIKPHQSQH IGEMSFLQHS RCECRPKKDR TKPEKCDKRPR R.

Product Science Overview

Introduction

Vascular Endothelial Growth Factor (VEGF) is a signal protein that stimulates the formation of blood vessels. It plays a crucial role in both vasculogenesis (the formation of the circulatory system) and angiogenesis (the growth of blood vessels from pre-existing vasculature). VEGF is essential for the growth and development of tissues and organs, as well as for wound healing and the formation of granulation tissue.

Structure and Isoforms

VEGF exists in several isoforms, which are produced through alternative splicing of mRNA. The most common isoforms are VEGF121, VEGF165, VEGF189, and VEGF206. These isoforms differ in their molecular weight and their ability to bind to cell surface receptors and the extracellular matrix.

The VEGF121 isoform, specifically, is a truncated version of the more common VEGF165. It consists of 121 amino acids and lacks the heparin-binding domain present in the longer isoforms. This makes VEGF121 more diffusible and less likely to be sequestered by the extracellular matrix .

Production and Purification

Recombinant VEGF121 (Mouse) is typically produced in bacterial systems such as E. coli. The recombinant protein is expressed as a homodimer, non-glycosylated polypeptide chain containing 121 amino acids, with a molecular mass of approximately 28.4 kDa . The purification process involves proprietary chromatographic techniques to ensure high purity and bioactivity .

Biological Function

VEGF121 retains the ability to bind to VEGF receptors (VEGFR-1 and VEGFR-2) on the surface of endothelial cells. This binding activates signaling pathways that promote endothelial cell proliferation, migration, and new blood vessel formation. VEGF121 is particularly important in pathological conditions where angiogenesis is required, such as in tumor growth, diabetic retinopathy, and rheumatoid arthritis.

Therapeutic Applications

Recombinant VEGF121 has been studied for its potential therapeutic applications. For instance, it has been shown to attenuate autoantibody-induced features of pre-eclampsia in pregnant mice. Pre-eclampsia is a serious hypertensive disorder of pregnancy characterized by excessive production of a soluble form of the VEGF receptor-1 (sFlt-1). Infusion of recombinant VEGF121 in pregnant mice significantly reduced hypertension, proteinuria, and glomerular damage induced by autoantibodies .

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