Characterization of a Monoclonal Antibody Specific to Human Siah-1 Interacting Protein
Immune Network
;
: 23-30, 2004.
Article
in Korean
| WPRIM
| ID: wpr-160487
ABSTRACT
BACKGROUND:
A human orthologue of mouse S100A6-binding protein (CacyBP), Siah- 1-interacting protein (SIP) had been shown to be a component of novel ubiquitinylation pathway regulating beta-catenin degradation. The role of the protein seems to be important in cell proliferation and cancer evolution but the expression pattern of SIP in actively dividing cancer tissues has not been known. For the elucidation of the role of SIP protein in carcinogenesis, it is essential to produce monoclonal antibodies specific to the protein.METHODS:
cDNA sequence coding for ORF region of human SIP gene was amplified and cloned into an expression vector to produce His-tag fusion protein. Recombinant SIP protein and monoclonal antibody to the protein were produced. The N-terminal specificity of anti-SIP monoclonal antibody was conformed by immunoblot analysis and enzyme linked immunosorbent assay (ELISA). To study the relation between SIP and colon carcinogenesis, the presence of SIP protein in colon carcinoma tissues was visualized by immunostaining using the monoclonal antibody produced in this study.RESULTS:
His-tag-SIP (NSIP) recombinant protein was produced and purified. A monoclonal antibody (Korea patent pending; #2003-45296) to the protein was produced and employed to analyze the expression pattern of SIP in colon carcinoma tissues.CONCLUSION:
The data suggested that anti-SIP monoclonal antibody produced here was valuable for the diagnosis of colon carcinoma and elucidation of the mechanism of colon carcinogenesis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Enzyme-Linked Immunosorbent Assay
/
Colorectal Neoplasms
/
Sensitivity and Specificity
/
Clone Cells
/
Colon
/
DNA, Complementary
/
Cell Proliferation
/
Diagnosis
/
Ecthyma, Contagious
/
Beta Catenin
Type of study:
Diagnostic study
Limits:
Animals
/
Humans
Language:
Korean
Journal:
Immune Network
Year:
2004
Type:
Article
Similar
MEDLINE
...
LILACS
LIS