Production of Monoclonal Antibody Against Human 14 - 3 - 3 Zeta Isoform Expressed in Escherichia coli / 대한면역학회지
Korean Journal of Immunology
;
: 391-398, 1997.
Article
in Korean
| WPRIM
| ID: wpr-30623
ABSTRACT
14-3-3 proteins are cytoplasmic proteins of about 29 kDa and have a minimum of seven isoforms. This protein is important in signal transduction with the ability of binding with phosphoserine of many signalling proteins. We expressed 14-3-3 protein tagged with 6 histidine residues in E. coli and purified the protein by nickel affinity chromatography. Using this purified protein as an antigen, we made rabbit antisera and mouse monoclonal antibodies to 14-3-3 zeta isoform. We subcloned cDNA of 14-3-3 zeta isoform derived from HeLa cell lamda gt 11 library into an E. coli expression vector which is designed to express heterologous protein with N- terminal 6 hidtidine tag. BALB/c mice were immunized with purified 14-3-3 protein and the hybridoma clones which produce monoclonal antibodies angainst 14-3-3 protein were selected. These monoclonal antibodies reacted with the recombinant protein expressed in E. coli as well as the 29-kDa native protein in various cell lines. However, they did not immunoprecipitate 14-3-3 protein. The monoclonal antibodies produced in this study can be valuable tools for the identification of the 14-3-3 in signal transduction study.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phosphoserine
/
Staphylococcal Protein A
/
HeLa Cells
/
Signal Transduction
/
Cell Line
/
Chromatography, Affinity
/
Clone Cells
/
DNA, Complementary
/
Protein Isoforms
/
Cytoplasm
Limits:
Animals
/
Humans
Language:
Korean
Journal:
Korean Journal of Immunology
Year:
1997
Type:
Article
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