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Biotinylated Recombinant Human Macrophage Migration Inhibitory Factor, His, Avi

 
Catalog No.
P1661
生物素化重组人巨噬细胞迁移抑制因子,His,Avi
组合的产品项目
规格价格库存 数量
10ug
¥ 2,214.00
Ship with 5-10 days
100ug
¥ 9,312.00
Ship with 5-10 days
500ug
¥ 33,616.00
Ship with 5-10 days

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A

背景

迁移抑制因子(MIF)是一种没有可切割信号序列的分泌型蛋白质,通过一种特殊的、非经典的途径分泌。它由巨噬细胞在细菌脂多糖或结核分枝杆菌抗原刺激下分泌。MIF由两个α-螺旋和六个β-链组成,其中四个形成β-Sheet。剩下的两条β链与其他mif分子相互作用,形成一个三聚体。结构-功能研究表明,MIF具有双功能,具有分离的拓扑结构。N-末端和C-末端是酶活性的中介体(理论上)。苯丙酮酸互变异构酶活性(烯醇-酮基)已被证明,并依赖于第1位的Pro。也被认为含有硫醇蛋白氧化还原酶活性。MIF的促炎细胞因子活性集中在49-65(A.A.)。在成纤维细胞上,MIF诱导IL-1、IL-8和基质金属蛋白酶的表达,在巨噬细胞上,MIF刺激NO的产生和肿瘤坏死因子-α的释放,继而激活干扰素-γ。MIF显然通过CD74和CD44发挥作用,可能是以某种形式的三聚体相互作用。人MIF在小鼠细胞上是活性的。人的MIF分别为90%、94%、95%和90%。分别与小鼠、牛、猪和大鼠的MIF相同。

Information

SourceEscherichia coli.
M.WtApproximately 15.4 kDa, a single non-glycosylated polypeptide chain containing 136 amino acids, with 6 × His and Avi tag at the C-terminus.
AA SequenceMPMFIVNTNV PRASVPDGFL SELTQQLAQA TGKPPQYIAV HVVPDQLMAF GGSSEPCALC SLHSIGKIGG AQNRSYSKLL CGLLAERLRI SPDRVYINYY DMNAANVGWN NSTFAHHHHH HGLNDIFEAQ KIEWHE
AppearanceSterile Filtered White lyophilized (freeze-dried) powder.
Stability & StorageUse a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
FormulationLyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.0, 5 % Trehalose, 0.02 % Tween-20.
ReconstitutionWe recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 ℃. Further dilutions should be made in appropriate buffered solutions.
Biological ActivityFully biologically active when compared to standard. The specific activity is determined by binding rhCD74 in a functional ELISA.
Shipping ConditionGel pack.
HandlingCentrifuge the vial prior to opening.
UsageFor Research Use Only! Not to be used in humans.

质量控制

质量控制和DataSheet

批次:
    纯度 > 97 % by SDS-PAGE and HPLC analyses.
    Endotoxin: Less than 0.1 EU/μg of rHuMIF, His, Avi, Biotinylated as determined by LAL method.
  • Datasheet