Back to Search
Start Over
Three distinct anti-allergic drugs, amlexanox, cromolyn and tranilast, bind to S100A12 and S100A13 of the S100 protein family
- Source :
- Biochemical Journal. 338:583-589
- Publication Year :
- 1999
- Publisher :
- Portland Press Ltd., 1999.
-
Abstract
- To investigate the roles of calcium-binding proteins in degranulation, we used three anti-allergic drugs, amlexanox, cromolyn and tranilast, which inhibit IgE-mediated degranulation of mast cells, as molecular probes in affinity chromatography. All of these drugs, which have different structures but similar function, scarcely bound to calmodulin in bovine lung extract, but bound to the same kinds of calcium-binding proteins, such as the 10-kDa proteins isolated in this study, calcyphosine and annexins I–V. The 10-kDa proteins obtained on three drug-coupled resins and on phenyl-Sepharose were analysed by reversed-phase HPLC. It was found that two characteristic 10-kDa proteins, one polar and one less polar, were bound with all three drugs, although S100A2 (S100L), of the S100 family, was bound with phenyl-Sepharose. The cDNA and deduced amino acid sequence proved our major polar protein to be identical with the calcium-binding protein in bovine amniotic fluid (CAAF1, S100A12). The cDNA and deduced amino acid sequence of the less-polar protein shared 95% homology with human and mouse S100A13. In addition, it was demonstrated that the native S100A12 and recombinant S100A12 and S100A13 bind to immobilized amlexanox. On the basis of these findings, we speculate that the three anti-allergic drugs might inhibit degranulation by binding with S100A12 and S100A13.
- Subjects :
- DNA, Complementary
Calmodulin
Tranilast
Molecular Sequence Data
Aminopyridines
Biology
Biochemistry
Chromatography, Affinity
law.invention
Affinity chromatography
law
Complementary DNA
Anti-Allergic Agents
Cromolyn Sodium
medicine
Animals
Humans
ortho-Aminobenzoates
Amino Acid Sequence
Molecular Biology
Peptide sequence
Chromatography, High Pressure Liquid
Base Sequence
Calcium-Binding Proteins
S100 Proteins
S100A12 Protein
Degranulation
Cell Biology
Molecular biology
Recombinant Proteins
Molecular Weight
Amlexanox
biology.protein
Recombinant DNA
Cattle
Protein Binding
Research Article
medicine.drug
Subjects
Details
- ISSN :
- 14708728 and 02646021
- Volume :
- 338
- Database :
- OpenAIRE
- Journal :
- Biochemical Journal
- Accession number :
- edsair.doi.dedup.....5afcfffb8cfe4966f5fc633a3e02eef8