Recombinant Guinea pig Saposin-C (PSAP)
Product Specifications
Product Name Alternative
Co-beta-glucosidaseGlucosylceramidase activatorSphingolipid activator protein 2 ; SAP-2
Abbreviation
Recombinant Guinea pig PSAP protein
Gene Name
PSAP
UniProt
P20097
Expression Region
1-81aa
Organism
Cavia porcellus (Guinea pig)
Target Sequence
ESVTCKACEYVVKKVMELIDNNRTEEKIIHALDSVCALLPESVSEVCQEVVDTYGDSIVALLLQEMSPELVCSELGLCMSG
Tag
N-terminal 6xHis-tagged
Type
Developed Protein
Source
Yeast
Field of Research
Metabolism
Relevance
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.
Endotoxin
Not test
Purity
Greater than 90% as determined by SDS-PAGE.
Activity
Not Test
Form
Liquid or Lyophilized powder
Buffer
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Function
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.
Molecular Weight
10.9 kDa
References & Citations
The activator protein for glucosylceramide beta-glucosidase from guinea pig liver. Improved isolation method and complete amino acid sequence.Sano A., Radin N.S., Johnson L.L., Tarr G.E.J. Biol. Chem. 263:19597-19601 (1988)
Storage Conditions
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Protein Length
Full Length
Available Sizes
Curated Selection
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