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Recombinant Protein Services

Overview

Genemed’s proprietary mammalian cell protein expression system is both robust and versatile and has successfully produced significant expression in over 70% of the genes tested so far. This system typically results in high expression levels that not only reduces the production cost but also the time it takes to produce milligram quantity of high-quality functional proteins. PlexBio’s protein production team is highly experienced in protein production and purification and particularly knowledgeable in maintaining and preserving the native conformation of proteins.

Workflow

Production of your protein of interest takes about 10 weeks total: 5 weeks for codon optimization and gene synthesis and 5 weeks for protein expression.


SDS-PAGE and Bioactivity

The following are SDS-PAGE and bioactivity data for two sample proteins expressed through our proprietary mammalian cell expression system:

GM-CSF

The purity of hGM-CSF was determined by SDS-PAGE to be >90%, and the ED50 was determined to be 0.005 ng/ml in a cell-proliferation assay using the human growth factor-dependent TF-1 cell line.

 

TNF-b

The purity of TNF-b was determined by SDS-PAGE to be >90%, and the ED50 was determined to be 2 ng/ml in a cytotoxicity assay using the L979 cell line.



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