A synthetic peptide made to the C-terminus of mouse Cathepsin E.
Murine reticulocyte lysate. Cathepsin E is expressed abundantly in the stomach, Clara cells and alveolar macrophages of the lung, brain microglia, spleen, and activated B lymphocytes. It is not expressed in resting B lymphocytes.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
1/1000. Predicted molecular weight: 42 kDa.
Use at an assay dependent concentration.
FunctionMay have a role in immune function. Probably involved in the processing of antigenic peptides during MHC class II-mediated antigen presentation. May play a role in activation-induced lymphocyte depletion in the thymus, and in neuronal degeneration and glial cell activation in the brain.
Tissue specificityExpressed abundantly in the stomach, the Clara cells of the lung and activated B-lymphocytes, and at lower levels in lymph nodes, skin and spleen. Not expressed in resting B-lymphocytes.
Sequence similaritiesBelongs to the peptidase A1 family.
Post-translational modificationsGlycosylated. The nature of the carbohydrate chain varies between cell types. In fibroblasts, the proenzyme contains a high mannose-type oligosaccharide, while the mature enzyme contains a complex-type oligosaccharide. In erythrocyte membranes, both the proenzyme and mature enzyme contain a complex-type oligosaccharide. Two forms are produced by autocatalytic cleavage, form I begins at Ile-54, form II begins at Thr-57.
Cellular localizationEndosome. The proenzyme is localized to the endoplasmic reticulum and Golgi apparatus, while the mature enzyme is localized to the endosome.
Western blot - Anti-Cathepsin E antibody (ab36996)
Anti-Cathepsin E antibody (ab36996) at 1/1000 dilution + Murine reticulocyte lysate at 10 µg
Predicted band size : 42 kDa Observed band size : 42 kDa
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cathepsin E antibody (ab36996)This image is courtesy of an Abreview submitted by Rudolf Jung
ab36996 staining Cathepsin E at a dilution of 1/2000 in Human stomach and tonsil tissue by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections). The sections were PFA-fixed and subjected to Heat-mediated antigen retrieval in TRIS EDTA Buffer pH 9.0 and permeabilization with DAKO wash buffer with Tween. The primary antibody was diluted 1/2000 in DAKO blocking dilution buffer and incubated with the sample for 30 minutes at 20°C. An HRP-conjugated Goat anti-Rabbit polyclonal was used as the secondary antibody.
References for Anti-Cathepsin E antibody (ab36996)
This product has been referenced in:
Fristrup N et al. Cathepsin E, maspin, Plk1, and survivin are promising prognostic protein markers for progression in non-muscle invasive bladder cancer. Am J Pathol180:1824-34 (2012).
Read more (PubMed: 22449953) »
Li XL et al. An essential role for the antiviral endoribonuclease, RNase-L, in antibacterial immunity. Proc Natl Acad Sci U S A105:20816-21 (2008).
Read more (PubMed: 19075243) »