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F2177

Sigma-Aldrich

Follistatin 288 from mouse

>95% (SDS-PAGE), recombinant, expressed in baculovirus infected Sf21 cells, lyophilized powder

Synonym(s):

FS-288

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About This Item

MDL number:
MFCD03456879
UNSPSC Code:
51111800
NACRES:
NA.32

biological source

mouse

Quality Level

100

recombinant

expressed in baculovirus infected Sf21 cells

Assay

>95% (SDS-PAGE)

form

lyophilized powder

potency

0.04-0.4 mg per mL

mol wt

calculated mol wt ~31 kDa

packaging

pkg of 25 μg

storage condition

avoid repeated freeze/thaw cycles

impurities

endotoxin, tested

UniProt accession no.

P47931

storage temp.

−20°C

Gene Information

mouse ... Fst(14313)

General description

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.

Biochem/physiol Actions

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.

Physical form

Recombinant Mouse Follistatin 288 is supplied as a approximately 25 μg of protein lyophilized from a 0.2 μm filtered solution in 30% acetonitrile and 0.1% TFA containing 1.25 mg of bovine serum albumin.

Analysis Note

The biological activity is measured by its ability to neutralize activin-induced erythroid differentiation on K562 cells.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H315,H318

Precautionary Statements

P280 - P305 + P351 + P338 + P310

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
S Dasgupta et al.
Journal of postgraduate medicine, 58(3), 190-193 (2012-10-02)
Out of a panel of 37 candidate genes tested for linkage with polycystic ovary syndrome (PCOS), the strongest evidence of linkage was reported in the follistatin (FST) gene region. Subsequently, a couple of studies outside India investigated the FST gene
Silvia Näf et al.
PloS one, 9(4), e92175-e92175 (2014-04-26)
The Activin A-Follistatin system has emerged as an important regulator of lipid and glucose metabolism with possible repercussions on fetal growth. To analyze circulating activin A, follistatin and follistatin-like-3 (FSTL3) levels and their relationship with glucose metabolism in pregnant women

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