Anti-Cystatin A/CSTA Antibody Picoband®

Cystatin A also called Stefin A is a protein that in humans is encoded by the CSTA gene. Cystatin A is a cysteine proteinase inhibitor that belongs to family 1 of the cystatin superpamily. This gene was assigned to human chromosome 3q21.1. This is an intracellular thiol proteinase inhibitor. Cystatin A plays an important role in desmosome-mediated cell-cell adhesion in the lower levels of the epidermis. Stefins have been proposed as prognostic and diagnostic tools for cancer.

E.coli-derived human Cystatin A recombinant protein (Position: E8-F98) . Human Cystatin A shares 61.5% and 58.2% amino acid (aa) sequence identity with mouse and rat Cystatin A, respectively.

Apoptosis, Cancer, Caspases, Cell Biology, Cytoskeleton/ECM, ECM Enzymes, Extracellular Matrix, Intracellular, Invasion/Microenvironment, Signal Transduction

This is an intracellular thiol proteinase inhibitor. Has an important role in desmosome-mediated cell-cell adhesion in the lower levels of the epidermis. .

1. Blaydon, D. C., Nitoiu, D., Eckl, K.-M., Cabral, R. M., Bland, P., Hausser, I., van Heel, D. A., Rajpopat, S., Fischer, J., Oji, V., Zvulunov, A., Traupe, H., Hennies, H. C., Kelsell, D. P. Mutations in CSTA, encoding cystatin A, underlie exfoliative ichthyosis and reveal a role for this protease inhibitor in cell-cell adhesion. Am. J. Hum. Genet. 89: 564-571, 2011. 2. Samuelsson, L., Stiller, C., Friberg, C., Nilsson, C., Inerot, A., Wahlstrom, J.Association analysis of cystatin A and zinc finger protein 148, two genes located at the psoriasis susceptibility locus PSORS5. J. Invest. Derm. 122: 1399-1400, 2004. 3. Vasilopoulos, Y., Walters, J., Cork, M. J., Duff, G. W., Sagoo, G. S., Tazi-Ahnini, R.Association analysis of the skin barrier gene cystatin A at the PSORS5 locus in psoriatic patients: evidence for interaction between PSORS1 and PSORS5.Europ. J. Hum. Genet. 16: 1002-1009, 2008.

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.