2μg(R: reducing conditions)
Product Details
Product Details
Product Specification
Species | Human |
Synonyms | Cathepsin D, CTSD, CPSD |
Accession | P07339 |
Amino Acid Sequence | Protein sequence (P07339, Leu21-Leu412, with C-His tag) LVRIPLHKFTSIRRTMSEVGGSVEDLIAKGPVSKYSQAVPAVTEGPIPEVLKNYMDAQYYGEIGIGTPPQCFTVVFDTGSSNLWVPSIHCKLLDIACWIHHKYNSDKSSTYVKNGTSFDIHYGSGSLSGYLSQDTVSVPCQSASSASALGGVKVERQVFGEATKQPGITFIAAKFDGILGMAYPRISVNNVLPVFDNLMQQKLVDQNIFSFYLSRDPDAQPGGELMLGGTDSKYYKGSLSYLNVTRKAYWQVHLDQVEVASGLTLCKEGCEAIVDTGTSLMVGPVDEVRELQKAIGAVPLIQGEYMIPCEKVSTLPAITLKLGGKGYKLSPEDYTLKVSQAGKTLCLSGFMGMDIPPPSGPLWILGDVFIGRYYTVFDRDNNRVGFAEAARL |
Expression System | HEK293 |
Molecular Weight | Predicted MW: 44.3 kDa Observed MW: 54 kDa |
Purity | >95% by SDS-PAGE |
Endotoxin | <0.1EU/μg |
Conjugation | Unconjugated |
Tag | with C-His tag |
Physical Appearance | Lyophilized Powder |
Storage Buffer | Lyophilized from a 0.2 μm filtered solution of 20mM Citrate Buffer, 150mM NaCl, pH6.0. |
Reconstitution | Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation. |
Stability & Storage | 12 months from date of receipt, -20 to -70 °C as supplied. |
Background
Cathepsin D is a protein that in humans is encoded by the CTSD gene. This gene encodes a lysosomal aspartyl protease composed of a protein dimer of disulfide-linked heavy and light chains, both produced from a single protein precursor. Cathepsin D is an aspartic endo-protease that is ubiquitously distributed in lysosomes. The main function of cathepsin D is to degrade proteins and activate precursors of bioactive proteins in pre-lysosomal compartments. This proteinase, which is a member of the peptidase A1 family, has a specificity similar to but narrower than that of pepsin A. Mutations in this gene are involved in the pathogenesis of several diseases, including breast cancer and possibly Alzheimer disease.
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SDS-PAGE
Presepsin (sCD14-ST) was prepared by cleavage of the Human CD14, hFc tag (Cat. No. S0A1048) by Human Cathepsin D Protein, His tag. Human CD14, hFc tag (100 μg) was reconstituted using a digestion buffer [0.1 M glycine–HCl (pH 3.5), 0.1% Tween-20, and 0.15 M NaCl] to obtain 1 μg/μL solution. The pH was adjusted to 3.5 using 1 M HCl. Then, 3.33 μg of Human Cathepsin D Protein, His tag was added and incubated for 1 h at 37 °C. The reaction solution was analyzed using SDS-PAGE.
