Product Datasheet
PSAP Antibody
Catalog Number: 32449
Technical:tech@swbio.com
Information:info@swbio.com
Description
- Swiss-Prot No.:
- Swiss-Prot:P07602
NCBI Gene ID:5660
- Form of Antibody:
- Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
- Immunogen:
- Recombinant protein of human PSAP.
- reactivity:
- Human,Mouse,Rat
- appl_detail:
- WB 1:500 - 1:2000
IHC 1:50 - 1:200
IF 1:50 - 1:200
- other_names:
- FLJ00245; GLBA; MGC110993; SAP1;
- Purification:
- Antibodies were purified by affinity purification using immunogen.
- Specificity:
- The antibody detects endogenous level of total PSAP protein.
- Background:
- The PSAP gene encodes prosaposin, a precursor of four small nonenzymatic glycoproteins termed 'sphingolipid activator proteins' (SAPs) that assist in the lysosomal hydrolysis of sphingolipids. After proteolytic processing of the presaposin protein, these 4 released polypeptides are functional activators. Saposin A is encoded by residues 60 to 143 of PSAP, saposin B by 195 to 275, saposin C by 311 to 390, and saposin D by 405 to 487. They are four 12-14 kDa heatstable glycoproteins. Saposins A-D localize primarily to the lysosomal compartment where they facilitate the catabolism of glycosphingolipids with short oligosaccharide groups. Saposins A-D are required for the hydrolysis of certain sphingolipids by specific lysosomal hydrolases. (PMID: 2001789) Defects in PSAP are the cause of Gaucher disease, Tay-Sachs disease, and metachromatic leukodystrophy (PubMed: 2060627, PMID: 15773042). This PSAP antibody (10801-1-AP) is expected to recognize both saposin A and B.
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