Abcam, ab198436, Recombinant human Cathepsin F protein

Size: 50µg
Recombinant human Cathepsin F protein is a Human Full Length protein, in the 20 to 484 aa range, expressed in HEK 293 cells, with >90%, suitable for SDS-PAGE, FuncS.
Key facts
Purity:>90% SDS-PAGE,
Expression system:HEK 293 cells,
Tags:His tag C-Terminus,
Applications:FuncS, SDS-PAGESee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:Yes,
Biological activity:≥ 0.9 pmole/min/μg. Enzyme activity was measured in a buffer containing 100 mM Sodium acetate (pH 5.5), 2 mM EDTA, 8 mM DTT, 0.05% Brij, and 20 μM substrate (Z-FRAMC), with 3.75-30 ng/μl Cathepsin F. Reaction was carried out at 30°C for 40-120 min, and fluorescence signal was measured at Ex360 nm/Em460 nm. Enzyme was preactivated in 50 mM sodium acetate pH 4.5, 5 mM DTT buffer for 90 min at RT prior to reaction.,
Accession:Q9UBX1,
Animal free:No,
Carrier free:No,
Species:Human,
Storage buffer:pH: 8.5Constituents: 10% Glycerol (glycerin, glycerine), 0.78% Sodium chloride, 0.36% Sodium acetate

Properties and Storage Information:
Shipped at conditions-Dry Ice, Appropriate short-term storage conditions--80°C, Appropriate long-term storage conditions--80°C, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Cathepsin F also known as CTSF is a cysteine protease enzyme with a molecular mass of approximately 44 kDa. It belongs to the papain-like protease family and exhibits proteolytic activity. This protein localizes to the lysosomes where it participates in protein degradation. Cathepsin F shows expression in various tissues including liver kidney and spleen suggesting a broad role in protein catabolism.
Biological function summary
Cathepsin F functions in protein breakdown processes within the lysosomal compartment. It actively participates in the formation and maturation of the autophagosomes. This protease is not known to be a component of a multi-protein complex but it works in concert with other lysosomal enzymes to ensure efficient catabolic activity. Its activity helps in the turnover of intracellular proteins maintaining cellular homeostasis.
Pathways
Cathepsin F contributes significantly to the lysosomal degradation pathway. It assists in proteolytic cascades that help in breaking down proteins into amino acids. This degradation pathway is important for the recycling of cellular components and energy production. Moreover Cathepsin F shares functional relationships with other proteases like Cathepsin B and Cathepsin L as they often have overlapping substrate specificities and contribute to a similar biological pathway.
Cathepsin F has links to neurodegenerative diseases such as Alzheimer's disease and certain types of cancer. In Alzheimer's disease Cathepsin F's altered activity affects protein clearance associated with amyloid beta aggregation. This protease also relates to Cancer Progression through its role in matrix remodeling. In neurodegenerative conditions and cancer Cathepsin F's interaction with proteins like Cathepsin S has implications for disease progression. Understanding these connections highlights Cathepsin F’s importance in diagnosing and potentially targeting therapeutic interventions.