Background:

The cathepsin family of proteolytic enzymes include several diverse classes of proteases. Cathepsins B, L, H, K, S and O comprise the cysteine protease class. Cathepsins D and E comprise the aspartyle protease class. The serine protease class includes cathepsin G. Cathepsins function in cellular metabolism and participate in peptide biosynthesis and protein degradation. Cathepsin A, a serine carboxypepidase, exists in a high molecular weight lysosomal complex with β-galactosidase (β-Gal) and α-neuraminidase (Neu1). Cathepsin A functions to protect β-Gal and Neu1 from intralysosomal proteolysis. Deficiencies in cathepsin A lead to deficiencies in β-Gal and Neu1. The gene encoding human cathepsin A maps to chromosome 20q13.12. Mutations in this gene cause glactosialidosis, a lysosomal storage disorder resulting from the β-Gal and Neu1 deficiencies.

Specificity:

Cathepsin A 20k (M327) polyclonal antibody detects endogenous levels of Cathepsin A 20k protein.

Alternative names:

Lysosomal protective protein; Carboxypeptidase C; Carboxypeptidase L; Cathepsin A; Protective protein cathepsin A; PPCA; Protective protein for beta-galactosidase; Lysosomal protective protein 32 kDa chain; Lysosomal protective protein 20 kDa chain; CTSA; PPGB

Species reactivity:

Human,Rat

Host:

Rabbit

Ig type:

Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Immunogen:

Synthetic peptide, corresponding to amino acids 327-380 of Human Cathepsin A.

Purification & Purity:

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Molecular weight:

~ 20 kDa

Applications:

WB

Usage:

WB: 1:500~1:1000

Storage:

Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Precautions:

For research use only, not for use in diagnostic procedure.

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