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Mouse CD223 Protein, His Tag

Mouse CD223 Protein, His Tag

产品编号

KMP2341

别名

淋巴细胞活化基因3, Lymphocyte activation gene 3 protein, LAG3

规格
  • 50ug
  • 100ug
  • 200ug
产品介绍
Catalog NumberKMP2341
Alias淋巴细胞活化基因3, Lymphocyte activation gene 3 protein, LAG3
Size50ug, 100ug, 200ug
Product DescriptionThe Mouse CD223 Protein(KMP2341) is produced in HEK293 Cells and the target gene encoding Ser23-Leu442 is expressed with a 6His tag at the C-terminus.
Molecular NameCD223
Product IntroductionCD223(LAG-3):免疫调节受体,以跨膜形式表达于免疫细胞,参与T细胞功能调控。
Molecular Weight46.16 kDa
Expression SystemHEK293 Cells
SpeciesMouse
Purity>95%
SDS-PAGE
PurificationAffinity Purification
Uniprot IDQ61790
Storage ConditionAliquot and store at -20℃ to -80℃. Avoid repeated freezing and thawing cycles.
FormulationPBS, pH7.4
Shipping ConditionIn general, the proteins are provided as lyophilized powder which are shipped at ambient temperature. They are shipped out in dry ice if supplied in liquid form.
BackgroundLymphocyte-activation gene 3(LAG3), also known as CD223, is a type I transmembrane protein with four extracellular Ig-like domains, designated D1 to D4 and belongs to the immunoglobulin superfamily. The gene for LAG3 lies adjacent to the gene for CD4 on human chromosome 12p13.32 and shares approximately 20% identical to the CD4 gene. LAG3 is expressed on activated T cells, natural killer cells, B cells and plasmacytoid dendritic cells. LAG3 binds with high affinity to MHC class II molecules, and it interferes competitively with the binding of CD4 to MHC class II and thereby blocks the transduction of stimulatory signals mediated by this interaction. LAG3 negatively regulates cellular proliferation, activation, and homeostasis of T cells, and plays an important role in Treg suppressive function. LAG3 is the target of various drug development programs to develop new treatments for cancer and autoimmune disorders. The soluble form, sLAG-3, is being developed as a cancer drug.
Endotoxin<1.0 EU/ug determined by the LAL method
Product Declaration该产品仅供科研使用,不可直接用于人体或注射。
FAQ
  • 蛋白溶解后浓度偏低,如何调整?

    低速离心:12,000 rpm, 5分钟,去除不溶物。缓冲液置换:使用超滤离心管(如10 kDa截留分子量)浓缩。

  • 如何提高重组蛋白的可溶性表达?

    可优化表达条件(如降低诱导温度、调整IPTG浓度)、使用促溶标签(如SUMO、GST)、共表达分子伴侣,或尝试不同宿主系统(如哺乳动物细胞或昆虫细胞)以提高可溶性蛋白产量。

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