Anti-Cathepsin D/Ctsd Antibody Picoband®

Cathepsin D is a protein that in humans is encoded by the CTSD gene. This proteinase is a member of the peptidase C1 family, having a specificity similar to but narrower than that of pepsin A. It is mapped to 11p15.5. The cDNA encodes a 412-amino acid protein with 20 and 44 amino acids in signal peptide and a pre- and prosegment, respectively. Cathepsin D is one of the lysosomal proteinases. It is ubiquitously expressed and is involved in proteolytic degradation of proteins, cell invasion, and apoptosis, playing a significant role in cell signaling technology. Mutations in this gene are involved in the pathogenesis of several diseases, including breast cancer and possibly Alzheimer's disease and it has been considered as a breast cancer tumor marker.

Cancer, Cell Adhesion Proteins, Cell Biology, Cytoskeleton/ECM, ECM Enzymes, Extracellular Matrix, Invasion/Microenvironment, Membrane Proteins, Neuroscience, Proteolysis/Ubiquitin, Proteolytic Enzymes, Signal Transduction

Acid protease active in intracellular protein breakdown. Plays a role in APP processing following cleavage and activation by ADAM30 which leads to APP degradation.

1. Faust PL, Kornfeld S, Chirgwin JM (Sep 1985) . Cloning and sequence analysis of cDNA for human cathepsin D. Proc Natl Acad Sci U S A 82 (15) : 4910–4. 2. Wolf M, Clark-Lewis I, Buri C, Langen H, Lis M, Mazzucchelli L (April 2003) . Cathepsin D specifically cleaves the chemokines macrophage inflammatory protein-1 alpha, macrophage inflammatory protein-1 beta, and SLC that are expressed in human breast cancer. Am. J. Pathol. 162 (4) : 1183–90.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.