产品名：重组人PDGF-BB

产品号：LT-0187

产品信息： 

血小板衍生因子（PDGF）可分为分子量为31KD含有7%糖的PDGFI及28KD含4%糖的PDGFⅡ。两者均由两条高度同源的A链及B链组成，这使PDGF具有三种形式的二聚体结构，即PDGF-AA，PDGF-BB及PDGF-AB。体内单核/巨噬细胞是主要合成PDGF的细胞。在生理状态下，PDGF以α颗粒的形式储存于血小板中，肝脏受损时，巨噬细胞、血小板、浸润的炎细胞、受损的内皮细胞及激活的肝星形细胞均可以分泌PDGF。以 自分泌、旁分泌的方式发挥作用。重组人PDGF-BB是分子量为24.3kDa的蛋白，2条β链（总共218个氨基酸）通过二硫键连接。

别名：

Platelet-Derived Growth Factor-BB, Glioma-derived growth factor (GDGF), Osteosarcoma-derived Growth Factor (ODGF)

英文描述:

PDGFs are disulfide-linked dimers consisting of two 12.0-13.5 kDa polypeptide chains, designated PDGF-A and PDGF-B chains. The three naturally occurring PDGFs, PDGF-AA, PDGF-BB and PDGF-AB, are potent mitogens for a variety of cell types, including smooth muscle cells, connective tissue cells, bone and cartilage cells, and some blood cells. The PDGFs are stored in platelet α-granules, and are released upon platelet activation. The PDGFs are involved in a number of biological processes, including hyperplasia, chemotaxis, embryonic neuron development, and respiratory tubule epithelial cell development. Two distinct signaling receptors used by PDGFs have been identified and named PDGFR-α and PDGFR-β. PDGFR-α is a high-affinity receptor for each of the three PDGF forms. On the other hand, PDGFR-β interacts with only PDGF-BB and PDGF-AB. Recombinant Human PDGF-BB is a 24.3 kDa disulfide-linked homodimer of two β chains (218 total amino acids). 

氨基酸序列:

SLGSLTIAEP AMIAECKTRT EVFEISRRLI DRTNANFLVW PPCVEVQRCS GCCNNRNVQC RPTQVQLRPV QVRKIEIVRK KPIFKKATVT LEDHLACKCE TVAAARPVT

表达宿主来源:

E.coli

保存条件：

4℃保存6个月，-20℃保存一年或者-80℃长期保存。

纯度&内毒素:

Greater than 95% by SDS-PAGE gel and HPLC analyses.

Endotoxin level <0.5EU/ug

The purity of rhPDGF-BB was determined by SDS-PAGE of non-reduced rhPDGF-BB  and staining overnight with Coomassie Blue.