antigen 42 kDa
15 mM sodium azide
pig, Hirudo medicinalis, bovine, rat, canine, feline, human, rabbit, carp, mouse, guinea pig, chicken, sheep
immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
indirect ELISA: suitable
indirect immunofluorescence: 1:1,000-1:2,000 using cultured human or chicken fibroblasts
western blot: 1:5,000-1:10,000 using cultured human or chicken fibroblast cell extracts
human ... ACTB(60)
mouse ... Actb(11461)
rat ... Actb(81822)
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NONH for all modes of transport
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
Beta Actin has a molecular weight of 42 kDa.
This antibody will detect mouse beta actin. When used for western blotting, the secondary antibody may react with mouse IgG from the sample resulting with a bands at 50 kDa and 25 kDa (reducing conditions) or approximately 150 kDa (non-reducing conditions). It is best to use a directly conjugated antibody for immunohistochemistry or immunofluorescent assays. We offer Product numbers A3854, peroxidase conjugated.
We have not determined the light chain used by monoclonal antibody AC-15. 95% of mouse antibodies have kappa light chains.
While actin should run as a 42 kDa band when detected by Western blotting, there are recent observations that cleavage products can be seen in cells undergoing apoptosis. Initial cleavage gives a band at 41 kDa, which may appear as a doublet on the blot. In addition, further cleavage results in a major band at 30 kDa and a small band at 14 kDa which have been shown to be cleavage products due to the action of interleukin 1 -converting enzyme. This may explain the detection of smaller bands when blotting with this antibody. This banding pattern may be detected with other actin antibodies as well. Kayalar, C., et al., Proc. Natl. Acad. Sci., USA, 93:2234-2238, (1996).
This antibody is ascities fluid. The amount of protein present and the amount of IgG1 present is indicated on the Lot-specific Certificate of Analysis.
We recommend using Product No. A9044, rabbit anti-mouse IgG, peroxidase conjugate as a secondary antibody. We also offer this same antibody directly conjugated to peroxidase as Product No. A3854.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
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