- SynonymPROCR,EPCR,CD201,APC receptor,CCCA,CCD41
- SourceHuman PROCR, Fc Tag (PRR-H5254) is expressed from human 293 cells (HEK293). It contains AA Ser 18- Thr 209 (Accession # AAH14451).Predicted N-terminus: Ser 18Request for sequence
- Molecular Characterization
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 48.6 kDa. The protein migrates as 60-66 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
- EndotoxinLess than 1.0 EU per μg by the LAL method.
- Purity
>95% as determined by SDS-PAGE.
- Formulation
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
- Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
- Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
Human PROCR, Fc Tag on SDS-PAGEunder reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
- BackgroundEndothelial protein C receptor (PROCR) is also known as Activated protein C receptor (APC receptor), Endothelial cell protein C receptor, CD antigen CD201. PROCR / EPCR / CD201 is a N-glycosylated protein, with a soluble form exists. PROCR is probably released by a metalloprotease. PROCR seems to have the same activity as the membrane-bound form. PROCR / EPCR / CD201 is expressed strongly in the endothelial cells of arteries and veins in heart and lung. PROCR binds activated protein C and enhances protein C activation by the thrombin - thrombomodulin complex. PROCR plays a role in the protein C pathway controlling blood coagulation.
- References
- (1)Fukudome K., et al., 1994, J. Biol. Chem. 269:26486-26491.
- (2)Oganesyan V., et al., 2002, J. Biol. Chem. 277:24851-24854.
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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CD11C:树突细胞,单核细胞,巨噬细胞,中性粒细胞
有几个疑问
1:荧光标记到细胞是标记到细胞表面还是细胞质内?
2:荧光应该随着细胞的分化和增殖逐渐消失?是不是分化增殖越快,荧光消失速度越快?
3:有哪些容易操作,成本便宜的荧光物质?
谢谢各位战友
可以用CCR3的抗体标记其他细胞,再反推中性粒细胞所占的比例吗?肺泡灌洗液中主要有嗜酸性粒细胞,淋巴细胞,中性粒细胞和巨噬细胞。
(2)荧光标记法 : 使用二乙酸荧光素(FDP)、碘化丙啶(PI)或异硫氰酸荧光素钠标记的荧光染料与细胞共孵育,用流式细胞仪检测荧光染色阳性细胞的比率。此法其实是(1)法的“荧光”版,但其在灵敏性和准确性方面明显要优于后者。
(3)硝酸镧(La)示踪法: 在正常的生物组织中镧微粒可沉积于细胞间隙,但不能穿过具有1~ 2nm 微小间隙的细胞膜性结构(包括细胞膜和细胞器膜),也不能穿过细胞间的紧密连接。在膜性结构通透性增高时, 镧微粒则可进入细胞、细胞器和紧密连接内, 并在电镜下显示, 镧盐标记技术被认为是一种有效的监测细胞膜通透性变化的标记技术。
(4)LDH释放法: 在正常情况下,细胞内大分子物质LDH 是不能通过细胞膜的, 但在细胞膜受损伤而通透性增加时,可通过受损的细胞膜释放出来。LDH 能较好地反映细胞膜损伤程度。类似的还有检测细胞外K+的漏出率等。