Recombinant Human FGF-4/FGF4 Protein

Specifications

Catalog number

PKSH032442-01

Size / count

10 µg

Dry ice

No

Hazardous

No

Discontinued

No

Background

Fibroblast growth factor 4 (FGF-4) is a heparin binding member of the FGF family. The human FGF4 cDNA encodes 206 amino acids (aa) with a 33 aa signal sequence and a 173 aa mature protein with an FGF homology domain that contains a heparin binding region near the C-terminus. Mature human FGF4 shares 91%, 82%, 94% and 91% aa identity with mouse, rat, canine and bovine FGF4, respectively. Human FGF-4 has been shown to exhibit cross species activity. Expression of FGF-4 and its receptors, FGF R1c, 2c, 3c and 4, is spatially and temporally regulated during embryonic development. FGF-4 is proposed to play a physiologically relevant role in human embryonic stem cell selfrenewal. It promotes stem cell proliferation, but may also aid differentiation depending on context and concentration, and is often included in embryonic stem cell media in vitro. FGF-4 is mitogenic for fibroblasts and endothelial cells in vitro and has autocrine transforming potential. It is a potent angiogenesis promoter in vivo and has been investigated as therapy for coronary artery disease.

Abbreviation

FGF-4

Synonyms

FGF-4; FGF4; Fibroblast growth factor 4; HBGF-4; HST; HST-1; HSTF-1; HSTF1; Heparin secretory-transforming protein 1; Heparin-binding growth factor 4; KS3 ; Transforming protein KS3

UniProt

P08620

Accession Number

P08620

Expression System

E.coli

Tag

None

Sequence

Ser54-Leu206

Applications

Cell culture

Field of Research

Signal Transduction; Cardiovascular; Cancer

Endotoxin

< 0.01 EU per μg of the protein as determined by the LAL method.

Purity

> 95 % as determined by reducing SDS-PAGE.

Bioactivity

50

Reconstitution

Please refer to the printed manual for detailed information.

Shipping Conditions

This product is provided as lyophilized powder which is shipped with ice packs.

Storage Conditions

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Calculated Molecular Weight

16.9 kDa

Observed Molecular Weight

16 kDa

Species

Human