Cathepsin A Proteins, Antibodies, cDNA Clones Research Reagents

All Cathepsin A reagents are produced in house and quality controlled, including 9 Cathepsin A Antibody, 28 Cathepsin A Gene, 1 Cathepsin A IP Kit, 2 Cathepsin A Lysate, 2 Cathepsin A Protein, 2 Cathepsin A qPCR. All Cathepsin A reagents are ready to use.

Cathepsin A Protein (2)

    Cathepsin A Antibody (9)

      Cathepsin A cDNA Clone (28)


      In cloning vector

      In lentiviral vector

      Cathepsin A Lysate (2)

        Cathepsin A Background

        Lysosomal carboxypeptidase, cathepsin A (protective protein, CathA), is a component of the lysosomal multienzyme complex along with beta-galactosidase (GAL) and sialidase Neu1, where it activates Neu1 and protects GAL and Neu1 against the rapid proteolytic degradation. Cathepsin A is a multicatalytic enzyme with deamidase and esterase in addition to carboxypeptidase activities. It was recently identified in human platelets as deamidase. In vitro, it hydrolyzes a variety of bioactive peptide hormones including tachykinins, suggesting that extralysosomal cathepsin A plays a role in regulation of bioactive peptide functions. It is a member of the alpha/beta hydrolase fold family and has been suggested to share a common ancestral relationship with other alpha/beta hydrolase fold enzymes, such as cholinesterases. Cathepsin A defects are linked to multiple forms of Galactosialidosis with a combined secondary deficiency of beta-galactosidase and neuraminidase. Cathepsin A is a key molecule in the onset of galactosialidosis and also highlight the therapeutic acts in vivo as an endothelin-1-inactivating enzyme and strongly confirm a crucial role of this enzyme in effective elastic fiber formation.

        Cathepsin A References

        • Hiraiwa M. (1999) Cathepsin A/protective protein: an unusual lysosomal multifunctional protein. Cell Mol Life Sci. 56(11-12): 894-907.
        • Yoshida T, et al. (2006) Comparative analysis of binding energy of chymostatin with human cathepsin A and its homologous proteins by molecular orbital calculation. J Chem Inf Model. 46(5): 2093-103.
        • Seyrantepe V, et al. (2008) Enzymatic activity of lysosomal carboxypeptidase (cathepsin) A is required for proper elastic fiber formation and inactivation of endothelin-1. Circulation. 117(15): 1973-81.

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