Prosaposin (PSAP) Antibody

PSAP Antibody is a Rabbit Polyclonal antibody against PSAP. 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.

Target	Prosaposin (PSAP)
Clonality	Polyclonal
Reactivity	Human, Mouse, Rat
Tested Applications	WB, IHC, IF/ICC
Host	Rabbit
Recommended dilutions	WB: 1/100 - 1/500, IHC-P: 1/50 - 1/200, IF/ICC: 1/50 - 1/200. Not tested in IHC-F. Optimal dilutions/concentrations should be determined by the end user.
Conjugation	Unconjugated
Immunogen	Recombinant fusion protein containing a sequence corresponding to amino acids 275-524 of human PSAP.
Isotype	IgG
Form	Liquid
Purification	Purified by affinity chromatography.
Storage	Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles.
UniProt Primary AC	P07602 (UniProt, ExPASy)
UniProt Entry Name	SAP_HUMAN
Gene Symbol	PSAP
GeneID	5660
NCBI Accession	NP_002769.1
KEGG	hsa:5660
String	9606.ENSP00000378394
Molecular Weight	Calculated MW: 58 kDa Observed MW: 62 kDa
Buffer	PBS, pH 7.3, containing 0.05% Proclin-300, 50% glycerol.
Concentration	> 0.2 mg/ml
Availability	Shipped within 5-10 working days.
Note	This product is for research use only.

Research Articles on Prosaposin (PSAP)

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