| Literature DB >> 18377922 |
Louise Bjerremann Jensen1, Anna Maria Torp, Sven Bode Andersen, Per Stahl Skov, Lars K Poulsen, Edward F Knol, Els van Hoffen.
Abstract
The application of recombinant (His)(6)-tagged proteins in cell culture assays is associated with problems due to lipopolysaccharide (LPS) contamination. LPS stimulates cells of the immune system, thereby masking antigen-specific activation of T cells. Due to the affinity of LPS for histidine it is associated with difficulties to remove LPS from recombinant (His)(6)-tagged proteins. Here we describe that the Triton X-114 phase separation method can be used to remove LPS from (His)(6)-tagged proteins and that the recombinant proteins retain their biological activity.Entities:
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Year: 2008 PMID: 18377922 DOI: 10.1016/j.jim.2008.02.012
Source DB: PubMed Journal: J Immunol Methods ISSN: 0022-1759 Impact factor: 2.303