Anti-CD23/FCER2 Antibody Picoband®

MRNA export factor is a protein that in humans is encoded by the RAE1 gene. Mutations in the Schizosaccharomyces pombe Rae1 and Saccharomyces cerevisiae Gle2 genes have been shown to result in accumulation of poly (A) -containing mRNA in the nucleus, suggesting that the encoded proteins are involved in RNA export. The protein encoded by this gene is a homolog of yeast Rae1. It contains four WD40 motifs, and has been shown to localize to distinct foci in the nucleoplasm, to the nuclear rim, and to meshwork-like structures throughout the cytoplasm. This gene is thought to be involved in nucleocytoplasmic transport, and in ly or inly attaching cytoplasmic mRNPs to the cytoskeleton. Alternatively spliced transcript variants encoding the same protein have been found for this gene.

Low affinity immunoglobulin epsilon Fc receptor; BLAST-2; C-type lectin domain family 4 member J; Fc-epsilon-RII; Immunoglobulin E-binding factor; Lymphocyte IgE receptor; CD23; Low affinity immunoglobulin epsilon Fc receptor membrane-bound form; Low affinity immunoglobulin epsilon Fc receptor soluble form; FCER2; CD23A; CLEC4J; FCE2; IGEBF

Highly expressed on high endothelial venules (HEV) and lamina propia venules found in the small intestine, and to a lesser extent in the colon and spleen. Very low levels of expression found in pancreas and brain. Not expressed in the thymus, prostate, ovaries, testis, heart, placenta, lung, liver, skeletal muscle, kidney or peripheral blood leukocytes.

Low-affinity receptor for immunoglobulin E (IgE) and CR2/CD21. Has essential roles in the regulation of IgE production and in the differentiation of B-cells (it is a B-cell-specific antigen) .

1. Lichtman AH, Abbas AK (2003) . Cellular and molecular immunology. Philadelphia: Saunders. pp. 324–325. 2. Weskamp, G., Ford, J. W., Sturgill, J., Martin, S., Docherty, A. J. P., Swendeman, S., Broadway, N., Hartmann, D., Saftig, P., Umland, S., Sehara-Fujisawa, A., Black, R. A., Ludwig, A., Becherer, J. D., Conrad, D. H., Blobel, C. P.ADAM10 is a principal 'sheddase' of the low-affinity immunoglobulin E receptor CD23.Nature Immun. 7: 1293-1298, 2006.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.