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Typical Testing Data/Standard Curve (for reference only)

Human Prosaposin (PSAP) ELISA Kit | PSAP elisa kit

Human Prosaposin (PSAP) ELISA Kit

Gene Names
PSAP; GLBA; SAP1
Reactivity
Human
Synonyms
Prosaposin (PSAP); Human Prosaposin (PSAP) ELISA Kit; SAP1; GLBA; CSAct; Dispersin; Pro-Saposin; Proactivator polypeptide; Glucosylceramidase activator; Sulfatide/GM1 activator; Cerebroside sulfate activator; Sphingolipid Activator 1; PSAP elisa kit
Ordering
For Research Use Only!
Reactivity
Human
Specificity
This assay has high sensitivity and excellent specificity for detection of PSAP. No significant cross-reactivity or interference between PSAP and analogues was observed.
Sequence Length
527
Samples
Serum, plasma, tissue homogenates, cell lysates, cerebrospinal fluid, seminal plasma, cell culture supernates and other biological fluids
Assay Type
Quantitative Sandwich
Detection Range
0.156-10ng/mL
Sensitivity
< 0.059ng/mL
Intra-assay Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level PSAP were tested 20 times on one plate, respectively. Intra-Assay: CV<10%
Inter-assay Precision
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level PSAP were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100. Inter-Assay: CV<12%
Preparation and Storage
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Typical Testing Data/Standard Curve (for reference only)

Typical Testing Data/Standard Curve (for reference only)
Related Product Information for PSAP elisa kit
Intended Uses: The kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of PSAP in human serum, plasma, tissue homogenates, cell lysates, cerebrospinal fluid, seminal plasma, cell culture supernates and other biological fluids.

Principle of the Assay: The microplate provided in this kit has been pre-coated with an antibody specific to PSAP. Standards or samples are then added to the appropriate microplate wells with a biotin-conjugated antibody specific to PSAP. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain PSAP, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of PSAP in the samples is then determined by comparing the O.D. of the samples to the standard curve.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
Molecular Weight
58,484 Da
NCBI Official Full Name
prosaposin, partial
NCBI Official Synonym Full Names
prosaposin
NCBI Official Symbol
PSAP
NCBI Official Synonym Symbols
GLBA; SAP1
NCBI Protein Information
prosaposin
UniProt Protein Name
Prosaposin
Protein Family
UniProt Gene Name
PSAP
UniProt Synonym Gene Names
GLBA; SAP1; CSAct; SAP-1; SAP-2

NCBI Description

This gene encodes a highly conserved preproprotein that is proteolytically processed to generate four main cleavage products including saposins A, B, C, and D. Each domain of the precursor protein is approximately 80 amino acid residues long with nearly identical placement of cysteine residues and glycosylation sites. Saposins A-D localize primarily to the lysosomal compartment where they facilitate the catabolism of glycosphingolipids with short oligosaccharide groups. The precursor protein exists both as a secretory protein and as an integral membrane protein and has neurotrophic activities. Mutations in this gene have been associated with Gaucher disease and metachromatic leukodystrophy. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Feb 2016]

Uniprot Description

Saposin-A and saposin-C stimulate the hydrolysis of glucosylceramide by beta-glucosylceramidase (EC 3.2.1.45) and galactosylceramide by beta-galactosylceramidase (EC 3.2.1.46). Saposin-C apparently acts by combining with the enzyme and acidic lipid to form an activated complex, rather than by solubilizing the substrate.Saposin-B stimulates the hydrolysis of galacto-cerebroside sulfate by arylsulfatase A (EC 3.1.6.8), GM1 gangliosides by beta-galactosidase (EC 3.2.1.23) and globotriaosylceramide by alpha-galactosidase A (EC 3.2.1.22). Saposin-B forms a solubilizing complex with the substrates of the sphingolipid hydrolases.Saposin-D is a specific sphingomyelin phosphodiesterase activator (EC 3.1.4.12).Prosaposin: Behaves as a myelinotrophic and neurotrophic factor, these effects are mediated by its G-protein-coupled receptors, GPR37 and GPR37L1, undergoing ligand-mediated internalization followed by ERK phosphorylation signaling.

Research Articles on PSAP

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Product Notes

The Human PSAP psap (Catalog #AAA2704660) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA2704660 ELISA Kit recognizes Human PSAP. It is sometimes possible for the material contained within the vial of "Prosaposin (PSAP), ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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