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产品名称：重组HCoV-HKU1 S蛋白
英文名称：coronavirus HKU1 (isolate N5) (HCoV-HKU1) Spike Protein (S1+S2 ECD, His Tag)
产品货号：Q20132
产品规格：100μg

纯度：> 75% as determined by SDS-PAGE.
内毒素：<1.0 EU per μg protein as determined by the LAL method.
表达宿主：Baculovirus-Insect Cells
种属：HCoV-HKU1
预测N端：Ala 13

蛋白构建：
A DNA sequence encoding the human coronavirus HKU1 (isolate N5) (HCoV-HKU1) spike protein (S1+S2 ECD) (Q0ZME7.1) (Met1-Pro1295) was expressed with a polyhistidine tag at the C-terminus.

分子量：
The recombinant human coronavirus HKU1 (isolate N5) (HCoV-HKU1) spike protein (S1+S2 ECD,His Tag) consists of 1294 amino acids and predicts a molecular mass of 144.4kDa.

缓冲液：
Lyophilized from sterile 20mM PB,300mM NaCl,10% glycerol,pH7.5
Please contact us for any concerns or special requirements.
Normally 5% - 8% trehalose,mannitol and 0.01% Tween80 are added as protectants before lyophilization.

运输方式：
In general,recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid.They are shipped out with blue ice unless customers require otherwise.

稳定性&储存条件：
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃.It is recommended that the protein be aliquoted for optimal storage.Avoid repeated freeze-thaw cycles.

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名称：重组人趋化因子CXCL4
货号：JN0328
规格：10μg|50μg|500μg|1mg
本品由我们的哺乳动物表达系统制备，目的基因编码的Glu32-Ser101在C端含有His标签。

CXCL4/PF4质量控制：＞95%(还原性SDS-PAGE)。

CXCL4/PF4制剂：0.2μm过滤冻干

CXCL4/PF4保存：
冻干蛋白可在-20℃长期保存，室温也可稳定保存3周。
复溶蛋白溶液可在4～7℃保存2～7天。
复溶后建议分装冻存在-20℃，可保存3个月，应避免反复冻融。

CXCL4/PF4复溶：
1、试剂开盖前请先离心。
2、复溶浓度应大于100μg/ml.
3、冻干蛋白溶于ddH2O中
4、复溶后根据使用量分装保存，避免反复冻融。

关于CXCL4/PF4：
Human Chemokine (C-X-C motif) Ligand 4 (CXCL4) is expressed in megakaryocytes and stored in the alpha-granules of platelets.CXCL4 contains several heparin-binding sites at the C-terminal region and binds heparin with high affinity.The active CXCL4 protein is a tetramer.Human and mouse CXCL4 share 64% sequence identity.CXCL4 is chemotactic for neutrophils,fibroblasts and monocytes and plays a critical role in inflammation and wound repair.CXCL4 functions via a splice variant of the chemokine receptor CXCR3,known as CXCR3B.The major physiologic role of CXCL4 appears to be neutralization of heparin-like molecules on the endothelial surface of blood vessels,thereby inhibiting local antithrombin III activity and promoting coagulation.In contrast to other CXC chemokines,CXCL4 lacks chemotactic activity for polymorphonuclear granulocytes.