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| Cat.No | ACP09181 | Target Name | PSAP |
|---|---|---|---|
| Form | Lyophilized powder | Expression System | Custom Production. Please inquire and provide the desire expression system. |
| Expression Range | 311-391 | Protein Length | Partial |
| Purity | >85% (SDS-PAGE) | Storage Buffer | 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, Liquid form: default storage buffer is Tris/PBS-based buffer, pH 8.0. |
| Target Species | Human | Uniprot ID | P07602 |
|---|
Uniprot Id
P07602
Target Species
Human
Target Name
PSAP
Target Full Name
Prosaposin
Target 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.; 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).; 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.; Saposins are specific low-molecular mass non-enzymic proteins, they participate in the lysosomal degradation of sphingolipids, which takes place by the sequential action of specific hydrolases.
Target Involvement
Combined saposin deficiency (CSAPD); Leukodystrophy metachromatic due to saposin-B deficiency (MLD-SAPB); Gaucher disease, atypical, due to saposin C deficiency (AGD); Krabbe disease, atypical, due to saposin A deficiency (AKRD)
Target Subcellular Location
Lysosome.; [Prosaposin]: Secreted.
Target Research Area
Signal Transduction, Metabolism
Target Synonyms
A1 activator; Cerebroside sulfate activator; Co-beta-glucosidase; Component C; CSAct; Dispersin; GLBA; Glucosylceramidase activator; Proactivator polypeptide; Proactivator polypeptide precursor; Prosaposin (sphingolipid activator protein 1); prosaposin (variant Gaucher disease and variant metachromatic leukodystrophy); Prosaposin; Protein A; Protein C; PSAP; SAP 1; SAP 2; SAP-1; SAP-2; SAP_HUMAN; SAP1; Saposin A; Saposin B; Saposin B Val; Saposin C; Saposin D; Saposin-D; Saposins; Sgp1; Sphingolipid activator protein 1; Sphingolipid activator protein 2; Sulfated glycoprotein 1; Sulfatide/GM1 activator
Target Background
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.
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