Full Name
Membrane Spanning 4-Domains A1
Background
This gene encodes a member of the membrane-spanning 4A gene family. Members of this nascent protein family are characterized by common structural features and similar intron/exon splice boundaries and display unique expression patterns among hematopoietic cells and nonlymphoid tissues. This gene encodes a B-lymphocyte surface molecule which plays a role in the development and differentiation of B-cells into plasma cells. This family member is localized to 11q12, among a cluster of family members. Alternative splicing of this gene results in two transcript variants which encode the same protein. [provided by RefSeq, Jul 2008]
Alternative Names
MS4A1; membrane-spanning 4-domains, subfamily A, member 1; B1; S7; Bp35; CD20; CVID5; MS4A2; LEU-16; B-lymphocyte antigen CD20; CD20 antigen; CD20 receptor; leukocyte surface antigen Leu-16; B-lymphocyte cell-surface antigen B1;
Cellular Localization
Plasma membrane
Involvement in Disease
Its related pathways are Hematopoietic cell lineage and Hematopoietic Stem Cells and Lineage-specific Markers.
Related Pathways
b lymphocyte-specific membrane protein, which is involved in the regulation of cellular calcium influx necessary for the development, differentiation and activation of b lymphocytes (PubMed:3925015, PubMed:7684739, PubMed:12920111). After activation of b-cell receptor/BCR, it acts as a component of stored and operated calcium (SOC) channels to promote calcium influx (PubMed:7684739, PubMed:12920111, PubMed:18474602).
Function
Cancer antibody; Developmental Biology antibody; Immune System antibody; B cell Marker antibody; Immature B Cell Marker antibody; Inflammatory Cell Marker antibody; Tumor-infiltrating Lymphocyte Study antibody
Field of research
Phosphorylated. Might be functionally regulated by protein kinase(s).
Biologic Classification
Protein Based Therapies
Monoclonal antibody (mAb)
Antibody Clone
Ibritumomab
Description
Recombinant monoclonal antibody to Human CD20. Ibritumomab tiuxetan, sold under the trade name Zevalin, is a monoclonal antibody radioimmunotherapy treatment for relapsed or refractory, low grade or transformed B cell non-Hodgkin's lymphoma, a lymphoproliferative disorder and thus affects the lymphatic system. The drug uses the monoclonal mouse IgG1 antibody ibritumomab (pronounced as ) in conjunction with the chelator tiuxetan, to which a radioactive isotope (either yttrium-90 or indium-111) is added. Tiuxetan is a modified version of DTPA whose carbon backbone contains an isothiocyanatobenzyl and a methyl group
