CTSA, Recombinant Protein

PPGB; Lysosomal protective protein; Carboxypeptidase C; Carboxypeptidase L; Cathepsin A; Protective protein cathepsin A; PPCA; Protective protein for beta-galactosidase

For Research Use Only. Not for use in diagnostic procedures.

Human cells

Greater than 95% as determined by reducing SDS-PAGE.

Supplied as a 0.2 muM filtered solution of 20mM PB, 150mM NaCl, pH 7.4.

Lyophilized protein should be stored at -20 degree C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8 degree C for 2-7 days. Aliquots of reconstituted samples are stable at -20 degree C for 3 months.

Small volumes of CTSA recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Recombinant Human CTSA Protein is produced by our mammalian expression system and the target gene encoding Ala29-Tyr480 is expressed with a 6His tag at the C-terminus.

ELISA (EIA),Western Blot (WB), SDS-PAGE, Mass Spectrometry (MS)

52,489 Da

cathepsin A

lysosomal protective protein

Lysosomal protective protein

PPGB; PPCA  [Similar Products]

PPGB_HUMAN

This gene encodes a member of the peptidase S10 family of serine carboxypeptidases. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate two chains that comprise the heterodimeric active enzyme. This enzyme possesses deamidase, esterase and carboxypeptidase activities and acts as a scaffold in the lysosomal multienzyme complex. Mutations in this gene are associated with galactosialidosis. [provided by RefSeq, Nov 2015]

CTSA: Protective protein appears to be essential for both the activity of beta-galactosidase and neuraminidase, it associates with these enzymes and exerts a protective function necessary for their stability and activity. This protein is also a carboxypeptidase and can deamidate tachykinins. Defects in CTSA are the cause of galactosialidosis (GSL). A lysosomal storage disease associated with a combined deficiency of beta-galactosidase and neuraminidase, secondary to a defect in cathepsin A. All patients have clinical manifestations typical of a lysosomal disorder, such as coarse facies, cherry red spots, vertebral changes, foam cells in the bone marrow, and vacuolated lymphocytes. Three phenotypic subtypes are recognized. The early infantile form is associated with fetal hydrops, edema, ascites, visceromegaly, skeletal dysplasia, and early death. The late infantile type is characterized by hepatosplenomegaly, growth retardation, cardiac involvement, and a normal or mildly affected mental state. The juvenile/***** form is characterized by myoclonus, ataxia, angiokeratoma, mental retardation, neurologic deterioration, absence of visceromegaly, and long survival. Belongs to the peptidase S10 family.

Protein type: EC 3.4.16.5; Endoplasmic reticulum; Mitochondrial; Protease

Chromosomal Location of Human Ortholog: 20q13.1

Cellular Component: endoplasmic reticulum; intracellular membrane-bound organelle; lysosomal lumen; membrane; nucleoplasm

Molecular Function: carboxypeptidase activity; enzyme activator activity; exo-alpha-sialidase activity; serine carboxypeptidase activity

Biological Process: glycosphingolipid metabolic process; intracellular protein transport; proteolysis; proteolysis involved in cellular protein catabolic process; regulation of protein stability

Disease: Galactosialidosis

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