The protein CUL4B acts as the scaffold protein within the multi-protein RING E3 ubiquitin protein ligase complexes needed for ubiquitination and subsequent proteasomal degradation of target proteins. CUL4B appears to contribute to the catalysis of ubiquitination by positioning the substrate target protein and the E3 ubiquitin ligase. Among the targets CUL4B is associated with include histone H2A, H3, p53, cyclin E and H4. The cell signaling mTORC1 pathway is also regulated via CUL4b interaction with MLST8 a key player in the mTORC1 pathway. Thus CUL4B is important is proper cell division, and cell cycle function, and is also associated with tumorigenesis in cancer by coordinating with various methylases in promoting specific DNA methylation-based epigenetic silencing in certain cancers. CUL4B is localized in the nucleus as well as the cytoplasm depending upon the context and is widely expressed.
Immunogen
GST-tagged recombinant protein corresponding to human Cullin-4B/CUL4B.
Application
Immunohistochemistry Analysis: A 1:50 dilution from a representative lot detected Cullin-4B/CUL4B in human kidney tissue.
Research Category Apoptosis & Cancer
Research Sub Category Apoptosis - Additional
This Anti-Cullin-4B/CUL4B Antibody, clone 9B11.1 is validated for use in Western Blotting and Immunohistochemistry for the detection of Cullin-4B/CUL4B.
Quality
Evaluated by Western Blotting in A549 cell lysate.
Western Blotting Analysis: 1.0 µg/mL of this antibody detected Cullin-4B/CUL4B in 10 µg of A549 cell lysate.
Target description
~104 kDa observed
Physical form
Format: Purified
Protein G Purified
Purified mouse monoclonal IgG2bκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Storage and Stability
Stable for 1 year at 2-8°C from date of receipt.
Other Notes
Concentration: Please refer to lot specific datasheet.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Storage Class
12 - Non Combustible Liquids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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The Tohoku journal of experimental medicine, 254(1), 33-39 (2021-05-21)
Although several molecular targeted therapy and immunotherapy have been developed, cutaneous melanoma prognosis is still not satisfying. Cul4b promotes the progression of several malignant tumors by regulating cell proliferation. However, its prognostic role in malignant cutaneous melanoma has not been
Journal of ovarian research, 13(1), 76-76 (2020-07-06)
Ovarian cancer is one of the most common malignant tumors in the female reproductive system with the highest mortality rate. Cul4B participates in the oncogenesis and progression of several malignant tumors. However, the role of Cul4B in ovarian cancer has
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