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Rat CD80 Protein, His Tag

Rat CD80 Protein, His Tag

产品编号

KMP2332

别名

T淋巴细胞活化抗原CD80, T-lymphocyte activation antigen CD80, Activation B7-1 antigen

规格
  • 50ug
  • 100ug
  • 200ug
产品介绍
Catalog NumberKMP2332
AliasT淋巴细胞活化抗原CD80, T-lymphocyte activation antigen CD80, Activation B7-1 antigen
Size50ug, 100ug, 200ug
Product DescriptionThe Rat CD80 Protein(KMP2332) is produced in HEK293 Cells and the target gene encoding Vla30-Gln248 is expressed with a 6His tag at the C-terminus.
Molecular NameCD80
Product IntroductionCD80(B7-1):免疫球蛋白超家族跨膜蛋白,作为CD28/CTLA-4的配体,在抗原呈递细胞表面表达。
Molecular Weight24.75 kDa
Expression SystemHEK293 Cells
SpeciesRat
Purity>95%
SDS-PAGE
PurificationAffinity Purification
Uniprot IDO35187
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.
BackgroundCluster of Differentiation 80, also called B7-1, is a member of cell surface immunoglobulin superfamily which plays key, yet distinct roles in the activation of T cells. B7-1/CD80 and B7-2/CD86, together with their receptors CD28 and CTLA4, constitute one of the dominant co-stimulatory pathways that regulate T- and B- cell responses. CD80 is mostly expressed on the surface of antigen-presenting cells including activated B cells, macrophages and dendritic cells. Although both CTLA-4 and CD28 can bind to the same ligands, CTLA-4 binds to B7-1 and B7-2 with a 20-100 fold higher affinity than CD28 and is involved in the down-regulation of the immune response.
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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