Intra-assay Precision (Precision within an assay): CV%<8%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10%
Three samples of known concentration were tested in twenty assays to assess.
To assess the linearity of the assay, samples were spiked with high concentrations of human SPAM1 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
The recovery of human SPAM1 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Average % Recovery
EDTA plasma (n=4)
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
We wonder whether this kit could be used in detection of recommbinant Hyaluronidase by CHO. We look forward to your reply.
Thanks for your inquiry! CSB-EL022471HU Human Hyaluronidase PH-20 (SPAM1) ELISA kit This kit is designed according to: https://www.uniprot.org/uniprot/P38567. It detects Hyaluronidase PH-20 rather than Hyaluronidase. If you want to detect recommbinant Hyaluronidase PH-20 by CHO, sorry that we are not sure 100% if it can be detected out or not. The recombinant protein used in the kit is 293 cell derived. As it involves different expression systems and modifications after expression, we can not guarantee that it can be detected out. We suggest you do a pretest first. Pls let me know if you have any further questions. Thank you.
Function (From Uniprot)
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. This protein aids in penetrating the layer of cumulus cells by digesting hyaluronic acid.
Gene References into Functions
Human posterior head 20 (hPH20) and homo sapiens sperm acrosome associated 1 (hSPACA1) immunocontraceptive epitopes reduced fertility in male/female mice. PMID: 25209425
results indicate that neither rHuPH20 nor its directly generated HA catabolites have inflammatory properties in the air pouch model, and rHuPH20 can instead inhibit some aspects of inflammation, such as neutrophil infiltration into the air pouch. PMID: 24778442
HSPA2 regulates the expression of sperm surface receptors involved in human sperm-oocyte recognition, such as arylsulfatase A and SPAM1. PMID: 23247813
The interaction between SPAM1, ARSA and HSPA2 in a multimeric complex mediating sperm-egg interaction. PMID: 23209833
PH20 is elevated in demyelinating lesions and that increased PH20 expression is sufficient to inhibit oligodendrocyte precursor cell maturation and remyelination. PMID: 23463525
SPAM1 mRNA & protein occur in all 3 regions of epididymis & vas deferens. It has hyaluronidase activity at pH 7.0. The proximal promoter has epididymal transcription factor sites including androgen receptor elements. Its role may be in sperm maturation. PMID: 12932297