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Human CD40L Protein

Human CD40L Protein

产品编号

KMP2375

别名

肿瘤坏死因子相关激活蛋白, Tumor Necrosis Factor Ligand Superfamily Member 5, CD154

规格
  • 50ug
  • 100ug
  • 200ug
产品介绍
Catalog NumberKMP2375
Alias肿瘤坏死因子相关激活蛋白, Tumor Necrosis Factor Ligand Superfamily Member 5, CD154
Size50ug, 100ug, 200ug
Product DescriptionThe Human CD40L Protein(KMP2375) is produced in HEK293 Cells and the target gene encoding Met113-Leu261 is expressed.
Molecular NameCD40L
Product IntroductionCD40L(CD154):一种II型跨膜蛋白,作为CD40的天然配体,在活化T细胞表面表达,参与B细胞活化和抗体产生。
Molecular Weight16.19 kDa
Expression SystemHEK293 Cells
SpeciesHuman
Purity>95%
SDS-PAGE
PurificationAffinity Purification
Uniprot IDA0A0S2Z3C7
Storage ConditionAliquot and store at -20℃ to -80℃. Avoid repeated freezing and thawing cycles.
Formulation20mM PB, 200mM NaCl, 0.1mM EDTA, pH7.0
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.
BackgroundCD40 Ligand(CD40LG) is a type II transmembrane glycoprotein that belongs to the TNF superfamily. Like other TNF superfamily members, CD40LG exists as a trimer in membrane bound and soluble form, both of which are bioactive. CD40LG is a ligand for CD40; its ligation also initiates signal transduction in CD40LG expressing cells. CD40LG is a differentiation antigen that is expressed on the surface of T-cells. It stimulates B-cell proliferation and secretion of all immunoglobulin isotypes in the presence of cytokines. CD40LG has been shown to induce cytokine production and tumoricidal activity in peripheral blood monocytes. It also co-stimulates proliferation of activated T-cells and this is accompanied by the production of IFN-gamma, TNF-alpha, and IL2.
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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