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Recombinant Human SPAM1/PH20 hyaluronidase Protein, His Tag, 25µg  

Recombinant Human SPAM1/PH20 hyaluronidase Protein, His Tag, 25µg

Recombinant Human SPAM1 /PH20 Protein, Leu 36 - Tyr 482, produced in human 293 cells (HEK293), His Tag (active enzyme)

recombinant, human, protein, SPAM1, PH-20, HYAL3, HYA1, HYAL1, HYAL5, SPAG15

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378,00 €

Hyaluronidase PH-20 also known as Sperm adhesion molecule 1 (SPAM1) and Sperm surface protein PH-20, which belongs to the glycosyl hydrolase 56 family, SPAM1 / PH-20 is expressed in testis. SPAM-1 / PH20 random hydrolysis of (1->4)-linkages between N – acetyl – beta – D – glucosamine and D-glucuronate residues in hyaluronate. SPAM-1 / PH20 involved in sperm-egg adhesion. Upon fertilization sperm must first penetrate a layer of cumulus cells that surrounds the egg before reaching the zona pellucida. The cumulus cells are embedded in a matrix containing hyaluronic acid which is formed prior to ovulation. SPAM1 aids in penetrating the layer of cumulus cells by digesting hyaluronic acid.

Recombinant Human SPAM1 /PH20 Protein (rhPH20), His Tag (PH0-H5225) is expressed from human 293 cells (HEK293). It contains AA Leu 36 - Tyr 482 (Accession # P38567-1).
Predicted N-terminus: Leu 36

Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 53.0 kDa. The protein migrates as 60-66 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Less than 1.0 EU per μg of the rhPH20 by the LAL method.

>95% purity as determined by SDS-PAGE of reduced rhPH20.

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM NaCl, pH7.0-7.4. Normally Mannitol or Trehalose are added as protectants before lyophilization.

See Certificate of Analysis for details of reconstitution instruction and specific concentration.

Avoid repeated freeze-thaw cycles.
No activity loss was observed after storage at:
In lyophilized state for 1 year (4C-8C); After reconstitution under sterile conditions for 1 month (4C-8C) or 3 months (-20C to -70C).

Please refer to product data sheet.


(1) Lin Y., et al., 1993, Proc. Natl. Acad. Sci. U.S.A. 90:10071-10075.
(2) Gmachl M., et al., 1993, FEBS Lett. 336:545-548.
(3) Arming S., et al., 1997, Eur. J. Biochem. 247:810-814.