背景：CD20 (membrane-spanning 4-domains; subfamily A; member 1); also known as MS4A1; is 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. CD20 / MS4A1 is expressed on all stages of B cell development except the first and last. CD20 / MS4A1 is present from pre-pre B cells through memory cells; but not on either pro-B cells or plasma cells. It is a B-lymphocyte surface molecule which plays a role in the development and differentiation of B-cells into plasma cells. CD20 / MS4A1may be involved in the regulation of B-cell activation and proliferation. Defects in CD20 / MS4A1 are the cause of immunodeficiency common variable type 5(CVID5). CVID5 is a primary immunodeficiency characterized by antibody deficiency; hypogammaglobulinemia; recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B-cells is usually in the normal range; but can be low.Immune Checkpoint Immunotherapy Cancer Immunotherapy Targeted Therapy
仕様
サイズ：100ug
種由来：Human
発現宿主：E.coli
純度：> 80 % as determined by reducing SDS-PAGE.
エンドトキシン濃度：Please contact us for more information.
アクセッションＮｏ．：NP_068769.2
タグ種類：N-TrxA
アミノ酸配列：Ile 141-Ser 188
遺伝子構造：A DNA sequence encoding the human MS4A1 (NP_068769.2) (Ile141-Ser188) was expressed with a TrxA tag at the N-terminus.
別名（遺伝子名）：B1;Bp35;CD20;CVID5;LEU-16;MS4A1;MS4A2;S7
分子量：23.9 kDa
組成：Lyophilized from sterile 50 mM Tris; 150 mM NaCl; 1 mM EDTA; pH 8.0
保存条件：Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
