MIF Rat

Macrophage Migration Inhibitory Factor Rat Recombinant
Cat. No.
BT23483
Source
Escherichia Coli.
Synonyms
Macrophage migration inhibitory factor, MIF, Glutathione-binding 13 kDa protein, L-dopachrome isomerase, L-dopachrome tautomerase, Phenylpyruvate tautomerase.
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

MIF Rat Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 115 amino acids and having a molecular mass of 12.5kDa.
The MIF is purified by proprietary chromatographic techniques.

Product Specs

Introduction
Macrophage migration inhibitory factor (MIF) is a cytokine secreted by the pituitary gland and monocyte/macrophage cells. It plays a crucial role in the body's response to endotoxic shock. Uniquely, MIF is released from macrophages and T cells when exposed to typical levels of glucocorticoids. However, this release is strictly controlled and diminishes at higher, anti-inflammatory steroid concentrations.
Description
Recombinant Rat MIF, produced in E. coli, is a single-chain polypeptide that lacks glycosylation. It comprises 115 amino acids and has a molecular weight of 12.5 kDa. The purification process involves specialized chromatographic techniques.
Physical Appearance
White, lyophilized (freeze-dried) powder that has been sterilized through filtration.
Formulation
The product is lyophilized from a 0.2 µm filtered solution concentrated in 1x PBS with a pH of 7.4 and containing 5% trehalose.
Solubility
To reconstitute the lyophilized MIF, it is recommended to dissolve it in sterile 18 MΩ-cm H₂O at a concentration of at least 100 µg/ml. This solution can then be diluted further using other aqueous solutions.
Stability
While the lyophilized MIF remains stable at room temperature for up to 3 weeks, it's best stored desiccated at a temperature below -18°C. Once reconstituted, MIF can be stored at 4°C for 2-7 days. For extended storage, freezing below -18°C is recommended, ideally with the addition of a carrier protein (0.1% HSA or BSA). Repeated freeze-thaw cycles should be avoided.
Purity
The purity of the MIF is greater than 95.0% as determined by the following methods: (a) Analysis using RP-HPLC (Reverse Phase High-Performance Liquid Chromatography). (b) Analysis using SDS-PAGE (Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis).
Synonyms
Macrophage migration inhibitory factor, MIF, Glutathione-binding 13 kDa protein, L-dopachrome isomerase, L-dopachrome tautomerase, Phenylpyruvate tautomerase.
Source
Escherichia Coli.
Amino Acid Sequence
MPMFIVNTNV PRASVPEGFL SELTQQLAQA TGKPAQYIAV HVVPDQLMTF SGTSDPCALC SLHSIGKIGG AQNRNYSKLL CGLLSDRLHI SPDRVYINYY DMNAANVGWN GSTFA.

Product Science Overview

Structure and Production

Rat recombinant MIF (rrMIF) is produced in Escherichia coli (E. coli) and is a single, non-glycosylated polypeptide chain containing 115 amino acids. It has a molecular mass of approximately 12.5 kDa . The recombinant form is used in research to study its biological functions and potential therapeutic applications.

Biological Functions

MIF is involved in several key biological processes:

  1. Immune Response: MIF is a critical mediator in the immune system. It is released by macrophages and T cells in response to physiological concentrations of glucocorticoids, counteracting their anti-inflammatory effects . This makes MIF a unique cytokine that can modulate the immune response during stress.

  2. Inflammation: MIF induces the production of various proinflammatory molecules, including tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and interleukin-6 (IL-6). It plays a significant role in the pathogenesis of inflammatory diseases by promoting inflammation and angiogenesis .

  3. Endotoxic Shock: MIF has been identified as a key player in endotoxic shock, a severe inflammatory response to bacterial endotoxins. It is secreted by the pituitary gland and macrophages, contributing to the systemic inflammatory response .

Research and Applications

Research on MIF has expanded our understanding of its role in various diseases and potential therapeutic applications:

  • Spinal Cord Injury: Studies have shown that MIF facilitates the production of prostaglandin E2 (PGE2) and chemokine CCL5 in astrocytes following spinal cord injury. This helps tune the inflammatory milieu and maintain homeostasis in the central nervous system .

  • Therapeutic Target: Due to its involvement in inflammation and immune response, MIF is being investigated as a potential therapeutic target for treating inflammatory diseases, autoimmune disorders, and cancer.

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