Recombinant Human Cathepsin-D

Cathepsin D, EC 3.4.23.5, CTSD, CPSD, CLN10, MGC2311.

Cathepsin D is synthesized as a 54kDa precursor, which is proteolytically processed to an intermediate 48kDa single chain, which matures into more stable 34kDa and 14kDa two chain form. It is an estrogen-regulated lysosomal protease that has been suggested to facilitate cancer cell migration and invasion by digesting the basement membrane, extracellular matrix, and xonnective tissue. Because of its mitogenic and proteolytic activities, it has been implicated as a prognostic marker in many tumor types. Cathepsin D is expressed in epithelial cells as well as in macrophages.

CTSD produced in HEK293 cells is a single, glycosylated polypeptide chain containing 398 amino acids (21-412 a.a.) and having a molecular mass of 43.4kDa. CTSD is expressed with an 6 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.

HEK293 Cells

Sterile Filtered clear solution.

CTSD at 1mg/ml in 50mM MES, pH5.5, 100mM NaCl and 20% Glycerol.

Store vial at -20°C to -80°C. When stored at the recommended temperature, this protein is stable for 12 months.
Please prevent freeze-thaw cycles.

> 20 pmol/min/ug, defined as the amount of enzyme which cleaves 1pmol of Mca-PLGLDpa-AR-NH2/min at pH-3.5 at 25C.

LVRIPLHKFT SIRRTMSEVG GSVEDLIAKG PVSKYSQAVP AVTEGPIPEV LKNYMDAQYY GEIGIGTPPQ CFTVVFDTGS SNLWVPSIHC KLLDIACWIH HKYNSDKSST YVKNGTSFDI HYGSGSLSGY LSQDTVSVPC QSASSASALG GVKVERQVFG EATKQPGITF IAAKFDGILG MAYPRISVNN VLPVFDNLMQ QKLVDQNIFS FYLSRDPDAQ PGGELMLGGT DSKYYKGSLS YLNVTRKAYW QVHLDQVEVA SGLTLCKEGC EAIVDTGTSL MVGPVDEVRE LQKAIGAVPL IQGEYMIPCE KVSTLPAITL KLGGKGYKLS PEDYTLKVSQ AGKTLCLSGF MGMDIPPPSG PLWILGDVFI GRYYTVFDRD NNRVGFAEAA RL-HHHHHH

SDS

Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.