Recombinant Human Follistatin (Human Follistatin)_C230349

Description

Follistatin (FS) was initially identified as a follicle-stimulating hormone inhibiting substance found in ovarian follicular fluid. It has since been shown that FS is a high‑affinity activin-binding protein that can act as an activin antagonist. Two alternatively spliced follistatin mRNAs, encoding mature FS with 288 amino acid (aa) residues (FS‑288) and 315 aa residues (FS‑315), exist. Natural FS purified from porcine ovaries is primarily a carboxy-terminal truncated form of FS‑315 composed of 300 aa residues. Cell surface-associated FS has been suggested to play a role in the clearance and bioavailability of activin in vivo. Besides activin, FS has also been shown to bind with multiple BMPs and to inhibit BMP activity in early Xenopus embryos. FS deficient mice have been shown to have multiple embryonic defects that will result in death shortly after birth.

Product Properties

Synonyms

FS; FSActivin-binding protein; FST
Accession
P19883
GeneID
10468
Source
E.coli-derived Human Follistatin, Gly30-Asn317.
Molecular Weight
Approximately 31.5 kDa.
AA Sequence
GNCWLRQAKN GRCQVLYKTE LSKEECCSTG RLSTSWTEEDVNDNTLFKWM IFNGGAPNCI PCKETCENVD CGPGKKCRMN KKNKPRCVCA PDCSNITWKG PVCGLDGKTY RNECALLKAR CKEQPELEVQ YQGRCKKTCR DVFCPGSSTC VVDQTNNAYC VTCNRICPEP ASSEQYLCGN DGVTYSSACH LRKATCLLGR SIGLAYEGKC IKAKSCEDIQ CTGGKKCLWD FKVGRGRCSL CDELCPDSKS DEPVCASDNA TYASECAMKE AACSSGVLLE VKHSGSCN
Tag
None
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
> 95% by SDS-PAGE and HPLC analyses.
Biological Activity
Testing in Progress.
Endotoxin
< 1.0 EU per 1μg of the protein by the LAL method.
Formulation
Lyophilized from a 0.2 mm filtered concentrated solution in 20mM Tris-HCl, pH 8.5, 150 mM NaCl.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriate buffered solutions.

 

Shipping and Storage

The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.

Cautions

1. Avoid repeated freeze-thaw cycles.
2. For your safety and health, please wear lab coats and disposable gloves for operation.
3. For research use only!

Recombinant Human Follistatin (Human Follistatin)_C230349

Product form

SKU: C230349E

$82.00

      • Tell a unique detail about this product

      Description

      Follistatin (FS) was initially identified as a follicle-stimulating hormone inhibiting substance found in ovarian follicular fluid. It has since been shown that FS is a high‑affinity activin-binding protein that can act as an activin antagonist. Two alternatively spliced follistatin mRNAs, encoding mature FS with 288 amino acid (aa) residues (FS‑288) and 315 aa residues (FS‑315), exist. Natural FS purified from porcine ovaries is primarily a carboxy-terminal truncated form of FS‑315 composed of 300 aa residues. Cell surface-associated FS has been suggested to play a role in the clearance and bioavailability of activin in vivo. Besides activin, FS has also been shown to bind with multiple BMPs and to inhibit BMP activity in early Xenopus embryos. FS deficient mice have been shown to have multiple embryonic defects that will result in death shortly after birth.

      Product Properties

      Synonyms

      FS; FSActivin-binding protein; FST
      Accession
      P19883
      GeneID
      10468
      Source
      E.coli-derived Human Follistatin, Gly30-Asn317.
      Molecular Weight
      Approximately 31.5 kDa.
      AA Sequence
      GNCWLRQAKN GRCQVLYKTE LSKEECCSTG RLSTSWTEEDVNDNTLFKWM IFNGGAPNCI PCKETCENVD CGPGKKCRMN KKNKPRCVCA PDCSNITWKG PVCGLDGKTY RNECALLKAR CKEQPELEVQ YQGRCKKTCR DVFCPGSSTC VVDQTNNAYC VTCNRICPEP ASSEQYLCGN DGVTYSSACH LRKATCLLGR SIGLAYEGKC IKAKSCEDIQ CTGGKKCLWD FKVGRGRCSL CDELCPDSKS DEPVCASDNA TYASECAMKE AACSSGVLLE VKHSGSCN
      Tag
      None
      Physical Appearance
      Sterile Filtered White lyophilized (freeze-dried) powder.
      Purity
      > 95% by SDS-PAGE and HPLC analyses.
      Biological Activity
      Testing in Progress.
      Endotoxin
      < 1.0 EU per 1μg of the protein by the LAL method.
      Formulation
      Lyophilized from a 0.2 mm filtered concentrated solution in 20mM Tris-HCl, pH 8.5, 150 mM NaCl.
      Reconstitution
      We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriate buffered solutions.

       

      Shipping and Storage

      The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
      Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.

      Cautions

      1. Avoid repeated freeze-thaw cycles.
      2. For your safety and health, please wear lab coats and disposable gloves for operation.
      3. For research use only!

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