Endotoxin-Free Protein Production Service

      • Overview
      • Service Details
      • Service Highlights
      • Related Services
      • Case Study
      • How to order
      Overview

      SERVICE NO: TSS035

      Endotoxins, known as lipopolysaccharides (LPS), are components of the outer membrane of the cell wall of Gram-negative bacteria. It is extremely hard to remove them by simple sterilization. Endotoxins can initiate a strong immune response that may lead to severe complications such as endotoxin shock, organ failure, tissue injury, et al. Due to the harmful effects of endotoxins, controlling the protein endotoxin level has become a critical focus in the medical field. E. Coli is a preferred system for recombinant protein production because it generally provides the most cost-effective solution. However, there are several limitations, include difficultly in producing proteins with strict endotoxin condition requirements and low secretion efficiency of secretory proteins. To overcome these limitations, BOT Bioscience has developed an Endotoxin-Free Expression System, which is able to express a wide variety of proteins and oligonucleotides that are identical to their wild-type counterparts.


      Service Details

      Phase

      Procedure

      Gene synthesis

      Codon optimization; gene synthesis

      Protein expression & purification

      Transformation and strain screening

      Target protein expression

      Protein purification

      Endotoxin removal

      Endotoxin affinity chromatography

      Ion exchange chromatography

      Hydrophobic chromatography

      Gel filtration chromatography and ultrafiltration

      Triton X-114 phase separation

      Endotoxin detection

      LAL gel-clot assay

      LAL turbidimetric assay

      LAL chromogenic assay


      Service Highlights
      Related Services
      Case Study
      How to order

      Contact us or send an email at info@bot-bioscience.com for project quotations and more detailed information.

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