推荐产品
生物来源
human
质量水平
重组
expressed in Sf21 cells
检测方案
≥90% (SDS-PAGE)
形式
lyophilized powder
效能
0.1-0.4 mg per mL
分子量
31 kDa
包装
pkg of 25 μg
储存条件
avoid repeated freeze/thaw cycles
技术
cell culture | mammalian: suitable
杂质
endotoxin, tested
UniProt登记号
储存温度
−20°C
基因信息
human ... FST(10468)
一般描述
FST (follistatin) is an activin-binding protein, and exists in two isoforms due to alternate splicing, FS288 and FS315. It is a glycoprotein with a single chain, and acts as an activin antagonist. It has a high level of expression in fetal membranes and placenta.
应用
FST (follistatin) has been used for trophoblast fusion assay and the measure of hCG (human chorionic gonadotropin) concentration in hormone assays. It is also suitable for the development of chondrocytes from hESc (human embryonic stem cells) by a new 3-Stage directed differentiation protocol (DDP).
生化/生理作用
FST (follistatin) binds to and regulates activins, which in turn are TGF (transforming growth factor)-β superfamily members. The expression level of FST and its binding partner activin A is elevated in inflammatory disorders. The activin A-follistatin system plays an essential role in the modulation of glucose and lipid metabolism, which might have an overall effect on fetal growth. In adipose tissue, it facilitates the adipogenic differentiation of progenitor cells.
High-affinity activin-binding protein that can act as an activin antagonist.
外形
Lyophilized from a solution in 30% acetonitrile and 0.1% trifluoroacetic acid containing 1.25 mg bovine serum albumin.
分析说明
The biological activity is measured by its ability to neutralize activin-induced bioactivity on K562 cells (erythroid differentiation).
警示用语：
Danger
危险声明
危险分类
Eye Dam. 1 - Skin Irrit. 2
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
新产品
O Hashimoto et al.
The Journal of biological chemistry, 272(21), 13835-13842 (1997-05-23)
There are two types of the activin-binding protein follistatin (FS), FS-288 and FS-315. These result from alternative splicing of mRNA. FS-288 exhibits high affinity for cell-surface heparan sulfate proteoglycans, whereas FS-315 shows low affinity. To understand the physiological role of
Rachel A Oldershaw et al.
StemBook, 2012 Jun 10 (2013-05-10)
We have developed for hESc a new 3-Stage directed differentiation protocol (DDP) to generate chondrocytes, the specialized cells that form cartilage tissue. The protocol is segmented into stages that mimic the developmental processes that occur in cell lineage specification during
S Iemura et al.
Proceedings of the National Academy of Sciences of the United States of America, 95(16), 9337-9342 (1998-08-05)
In early development of Xenopus laevis, it is known that activities of polypeptide growth factors are negatively regulated by their binding proteins. In this study, follistatin, originally known as an activin-binding protein, was shown to inhibit all aspects of bone
Q Guo et al.
Molecular endocrinology (Baltimore, Md.), 12(1), 96-106 (1998-01-24)
Follistatin is an activin-binding protein that can act as an activin antagonist in vitro. Follistatin also binds heparin sulfate proteoglycans and may function as a reservoir for activins in vivo. In the mouse, follistatin mRNA is first detected in the
Rita Linko et al.
BMC infectious diseases, 14, 253-253 (2014-06-03)
Activin A and its binding protein follistatin (FS) are increased in inflammatory disorders and sepsis. Overexpression of activin A in the lung causes similar histopathological changes as acute respiratory distress syndrome (ARDS). ARDS and severe respiratory failure are complications of
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