Figure 1. Detection of HDAC4 protein in the various cells is examined by using the PathScan® Total HDAC4 Sandwich ELISA Kit. The absorbance readings at 450 nm are shown in the top figure, while the corresponding Western blot using
HDAC4 (D15C3) Rabbit mAb #7628 is shown in the bottom figure.
Figure 2. The relationship between protein concentration of HeLa lysates and the absorbance at 450 nm as detected by the PathScan® Total HDAC4 Sandwich ELISA Kit is shown. Unstarved HeLa cells (85% confluence) were harvested and then lysed.
|REACTIVITY||H M Mk|
|Product Includes||Volume||Solution Color|
|HDAC4 Rabbit mAb Coated Microwells||96 tests|
|HDAC4 Mouse Detection mAb||1 ea||Green (Lyophilized)|
|Anti-mouse IgG, HRP-linked Antibody (ELISA Formulated)||1 ea||Red (Lyophilized)|
|Detection Antibody Diluent||11 ml||Green|
|HRP Diluent||11 ml||Red|
|TMB Substrate 7004||11 ml|
|STOP Solution 7002||11 ml|
|Sealing Tape||2 ea|
|ELISA Wash Buffer (20X) 9801||25 ml|
|ELISA Sample Diluent||25 ml||Blue|
|Cell Lysis Buffer (10X) 9803||15 ml|
The PathScan® Total HDAC4 Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of HDAC4. An HDAC4 rabbit antibody has been coated onto the microwells. After incubation with cell lysates, HDAC4 (phospho and nonphospho) is captured by the coated antibody. Following extensive washing, an HDAC4 mouse detection antibody is added to detect the captured HDAC4 protein. Anti-mouse IgG, HRP-linked Antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of the absorbance for this developed color is proportional to the quantity of HDAC4 protein.
Antibodies in kit are custom formulations specific to the kit.
NOTE: Prepare solutions with purified water.
*NOTE: Some PathScan® ELISA Kits may include HRP-Linked Streptavidin in place of HRP-Linked Antibody.
NOTE: Initial color of positive reaction is blue, which changes to yellow upon addition of STOP Solution.
posted November 2013
Protocol Id: 204
PathScan® Total HDAC4 Sandwich ELISA Kit detects endogenous levels of HDAC4 protein, as shown in Figure 1. The kit sensitivity is shown in Figure 2. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.Species Reactivity:
Human, Mouse, Monkey
Acetylation of the histone tail causes chromatin to adopt an "open" conformation, allowing increased accessibility of transcription factors to DNA. The identification of histone acetyltransferases (HATs) and their large multiprotein complexes has yielded important insights into how these enzymes regulate transcription (1,2). HAT complexes interact with sequence-specific activator proteins to target specific genes. In addition to histones, HATs can acetylate nonhistone proteins, suggesting multiple roles for these enzymes (3). In contrast, histone deacetylation promotes a "closed" chromatin conformation and typically leads to repression of gene activity (4). Mammalian histone deacetylases can be divided into three classes on the basis of their similarity to various yeast deacetylases (5). Class I proteins (HDACs 1, 2, 3, and 8) are related to the yeast Rpd3-like proteins, those in class II (HDACs 4, 5, 6, 7, 9, and 10) are related to yeast Hda1-like proteins, and class III proteins are related to the yeast protein Sir2. Inhibitors of HDAC activity are now being explored as potential therapeutic cancer agents (6,7).
Explore pathways + proteins related to this product.
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PathScan is a trademark of Cell Signaling Technology, Inc.