PLGF1 Human, Sf9

Placental Growth Factor-1 Human Recombinant, Sf9
Cat. No.
BT28596
Source
Insect Cells.
Synonyms

PIGF, PGF, PLGF-1.

Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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

Placenta Growth Factor-1 Human Recombinant produced in insect cells is a homodimer, glycosylated polypeptide chain containing 2 x 131 amino acids and having a total molecular mass of approximately 34 kDa.
The PLGF-1 is purified by proprietary chromatographic techniques.

Product Specs

Introduction
PLGF is a growth factor that plays a role in angiogenesis and endothelial cell growth by promoting proliferation and migration. It exerts its effects by binding to the receptor vegfr-1/flt1.
Description
Recombinant Human Placenta Growth Factor-1, produced in insect cells, is a glycosylated homodimeric polypeptide chain consisting of two chains of 131 amino acids each. Its total molecular mass is approximately 34 kDa. The purification of PLGF-1 is achieved using proprietary chromatographic methods.
Physical Appearance
White, sterile-filtered powder in lyophilized (freeze-dried) form.
Formulation
Lyophilized from a solution with a concentration of 1 mg/ml, containing 50 mM acetic acid.
Solubility
To reconstitute the lyophilized Placenta Growth Factor 1, it is recommended to dissolve it in sterile 0.1 M acetic acid at a concentration of at least 100 μg/ml. This reconstituted solution can then be further diluted with other aqueous solutions as needed.
Stability
Lyophilized Placenta Growth Factor 1 remains stable at room temperature for a period of 3 weeks. However, for long-term storage, it is recommended to store it in a desiccated state at a temperature below -18 °C. After reconstitution, PLGF1 should be stored at 4 °C for 2-7 days. For storage beyond this period, it should be kept at a temperature below -18 °C. It is important to avoid repeated freeze-thaw cycles.
Purity
Determined by SDS-PAGE analysis, the purity is greater than 95.0%.
Biological Activity
The ED50 value, which represents the effective concentration at which 50% of the maximal response is observed, is determined by the ability of PLGF-1 to bind to immobilized rh-sFlt-1 in a functional ELISA assay. Recombinant human PLGF-1 exhibits a linear binding range to immobilized rh-sFlt-1 (100 ng/well) at concentrations between 0.5 and 10 ng/ml. This corresponds to a specific activity of 1 x 105 - 2 x 106 units/mg.
Synonyms

PIGF, PGF, PLGF-1.

Source
Insect Cells.
Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Met-Leu-Pro-Ala-Val.

Product Science Overview

Introduction

Placental Growth Factor-1 (PLGF-1) is a member of the vascular endothelial growth factor (VEGF) family, which plays a crucial role in angiogenesis and vasculogenesis. This protein is particularly significant in the context of pregnancy, where it contributes to the development of the placenta and the establishment of a healthy blood supply to the fetus.

Structure and Production

PLGF-1 is a glycosylated polypeptide chain that forms a homodimer. The human recombinant version of PLGF-1 produced in Sf9 insect cells consists of two polypeptide chains, each containing 131 amino acids, resulting in a total molecular mass of approximately 34 kDa . The recombinant protein is purified using proprietary chromatographic techniques to ensure high purity and activity .

Biological Function

PLGF-1 is primarily involved in the regulation of angiogenesis, the process by which new blood vessels form from pre-existing vessels. This is essential for the proper development of the placenta during pregnancy. PLGF-1 binds to the VEGF receptor-1 (VEGFR-1), promoting endothelial cell proliferation, migration, and survival. It also enhances the permeability of blood vessels, facilitating the exchange of nutrients and waste products between the mother and the fetus.

Clinical Significance

PLGF-1 has been extensively studied for its role in various pathological conditions, particularly in pregnancy-related disorders such as pre-eclampsia. Pre-eclampsia is characterized by high blood pressure and proteinuria, and it can lead to serious complications for both the mother and the baby if not properly managed. PLGF-based diagnostic tests are used to help diagnose and monitor pre-eclampsia, providing valuable information for clinical decision-making .

Applications in Research and Medicine

The recombinant form of PLGF-1 is widely used in research to study its biological functions and potential therapeutic applications. It is also used in the development of diagnostic assays for pre-eclampsia and other conditions associated with abnormal angiogenesis. The availability of high-quality recombinant PLGF-1 allows researchers to conduct detailed studies on its mechanisms of action and interactions with other proteins.

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