BD 1 Rat

Beta Defensin -1 Rat Recombinant
Cat. No.
BT13673
Source
Escherichia Coli.
Synonyms
Beta-defensin 1, BD-1, rBD-1, Defensin beta 1, Defb1.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
Greater than 95.0% 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

BD-1 Rat Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 37 amino acids and having a molecular mass of 4.1kDa.
The BD-1 is purified by proprietary chromatographic techniques.

Product Specs

Introduction
Beta-defensin 1 is an antimicrobial peptide that plays a crucial role in the immune system's defense against microbial infections. It exhibits potent activity against a broad spectrum of microorganisms, including bacteria, fungi, and viruses. Beta-defensin 1 is primarily produced by epithelial cells and neutrophils, which are key players in the innate immune response. Its expression is upregulated in response to infection or inflammation, contributing to the body's natural defenses. Beta-defensin 1 is also involved in the regulation of the adaptive immune response, linking the innate and adaptive immune systems. Dysregulation of beta-defensin 1 expression has been implicated in various diseases, including inflammatory bowel disease, cystic fibrosis, and cancer.
Description
Recombinant BD-1 from rat is a single, non-glycosylated polypeptide chain containing 37 amino acids, with a molecular weight of 4.1 kDa. It is produced in E. coli and purified using proprietary chromatographic techniques.
Physical Appearance
Sterile Filtered White lyophilized powder.
Formulation
BD-1 protein was lyophilized from a 0.2µm filtered solution in phosphate-buffered saline (PBS) at pH 7.4.
Solubility
Reconstitute the lyophilized BD-1 in sterile 18 MΩ-cm H₂O to a concentration of at least 100 µg/ml. This solution can be further diluted in other aqueous solutions as needed.
Stability
Lyophilized BD-1 is stable at room temperature for 3 weeks. However, for long-term storage, it is recommended to store it desiccated below -18°C. Upon reconstitution, BD-1 should be stored at 4°C for 2-7 days. For extended storage, add a carrier protein (0.1% HSA or BSA) and store below -18°C. Avoid repeated freeze-thaw cycles.
Purity
Purity greater than 95.0% as determined by: (a) Reverse-phase high-performance liquid chromatography (RP-HPLC) analysis and (b) Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis.
Biological Activity
The biological activity of BD-1 is assessed by its ability to chemoattract CD34+ dendritic cells. The chemoattractant activity is measured using a concentration range of 0.1-1.0 µg/ml.
Synonyms
Beta-defensin 1, BD-1, rBD-1, Defensin beta 1, Defb1.
Source
Escherichia Coli.
Amino Acid Sequence
DQYRCLQNGG FCLRSSCPSH TKLQGTCKPD KPNCCRS.

Product Science Overview

Structure and Characteristics

Beta Defensin-1 is characterized by its six-cysteine motif, which forms three intra-molecular disulfide bonds. This structure is essential for its stability and function. The recombinant form of Rat Beta Defensin-1 is typically produced in E. coli and consists of a single non-glycosylated polypeptide chain containing 37 amino acids, with a molecular weight of approximately 4.1 kDa .

Biological Activity

Beta Defensin-1 exhibits potent antimicrobial properties. It interacts with the negatively charged membranes of invading microbes, leading to membrane destabilization and microbial death. Additionally, Beta Defensin-1 enhances the adaptive immune response by promoting the chemotaxis of immune cells such as monocytes, T-lymphocytes, dendritic cells, and mast cells to the site of infection .

Applications

Recombinant Rat Beta Defensin-1 is widely used in research to study its antimicrobial properties and its role in the immune system. It is also utilized in various bioassays to evaluate its biological activity, particularly in chemotaxis assays using CD34+ dendritic cells .

Storage and Handling

The recombinant protein is typically supplied as a lyophilized powder and should be reconstituted in sterile distilled water or an appropriate buffer. It is recommended to store the reconstituted protein in aliquots at -20°C to -80°C to avoid repeated freeze-thaw cycles, which can degrade the protein .

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