Revision 1
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP, IF-IC, FC-FP, ChIP

REACTIVITY:

H M R Mk

SENSITIVITY:

Endogenous

MW (kDa):

11

Source/Isotype:

Rabbit IgG

UniProt ID:

#P62805

Entrez-Gene Id:

8359

Product Information

Product Usage Information

For optimal ChIP results, use 10 μl of antibody and 10 μg of chromatin (approximately 4 x 106 cells) per IP. This antibody has been validated using SimpleChIP® Enzymatic Chromatin IP Kits.

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50
Immunofluorescence (Immunocytochemistry) 1:1600
Flow Cytometry (Fixed/Permeabilized) 1:1600
Chromatin IP 1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb recognizes endogenous levels of histone H4 protein only when acetylated at Lys12. This antibody does not cross-react with other acetyl-histone proteins.

Species Reactivity:

Human, Mouse, Rat, Monkey

Species predicted to react based on 100% sequence homology

Chicken, D. melanogaster

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic acetylated peptide corresponding to residues surrounding Lys12 of human histone H4 protein.

Background

The nucleosome, made up of four core histone proteins (H2A, H2B, H3, and H4), is the primary building block of chromatin. Originally thought to function as a static scaffold for DNA packaging, histones have now been shown to be dynamic proteins, undergoing multiple types of post-translational modifications, including acetylation, phosphorylation, methylation, and ubiquitination (1,2). Histone acetylation occurs mainly on the amino-terminal tail domains of histones H2A (Lys5), H2B (Lys5, 12, 15, and 20), H3 (Lys9, 14, 18, 23, 27, 36, and 56), and H4 (Lys5, 8, 12, and 16) and is important for the regulation of histone deposition, transcriptional activation, DNA replication, recombination, and DNA repair (1-3). Hyper-acetylation of the histone tails neutralizes the positive charge of these domains and is believed to weaken histone-DNA and nucleosome-nucleosome interactions, thereby destabilizing chromatin structure and increasing the accessibility of DNA to various DNA-binding proteins (4,5). In addition, acetylation of specific lysine residues creates docking sites for a protein module called the bromodomain, which binds to acetylated lysine residues (6). Many transcription and chromatin regulatory proteins contain bromodomains and may be recruited to gene promoters, in part, through binding of acetylated histone tails. Histone acetylation is mediated by histone acetyltransferases (HATs), such as CBP/p300, GCN5L2, PCAF, and Tip60, which are recruited to genes by DNA-bound protein factors to facilitate transcriptional activation (3). Deacetylation, which is mediated by histone deacetylases (HDAC and sirtuin proteins), reverses the effects of acetylation and generally facilitates transcriptional repression (7,8).

  1. Peterson, C.L. and Laniel, M.A. (2004) Curr Biol 14, R546-51.
  2. Jaskelioff, M. and Peterson, C.L. (2003) Nat Cell Biol 5, 395-9.
  3. Roth, S.Y. et al. (2001) Annu Rev Biochem 70, 81-120.
  4. Workman, J.L. and Kingston, R.E. (1998) Annu Rev Biochem 67, 545-79.
  5. Hansen, J.C. et al. (1998) Biochemistry 37, 17637-41.
  6. Yang, X.J. (2004) Bioessays 26, 1076-87.
  7. Haberland, M. et al. (2009) Nat Rev Genet 10, 32-42.
  8. Haigis, M.C. and Sinclair, D.A. (2010) Annu Rev Pathol 5, 253-95.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized) ChIP: Chromatin IP

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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Revision 1
#13944

Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb

Western Blotting Image 1: Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb Expand Image
Western blot analysis of extracts from HeLa and C6 cells, untreated (-) or treated (+) with Trichostatin A (TSA) #9950 (1 μM, 18 hr), using Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb (upper) and Histone H4 (D2X4V) Rabbit mAb #13919 (lower).
No image available
Immunofluorescence Image 1: Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb Expand Image
Confocal immunofluorescent analysis of HeLa cells untreated (left) or treated (right) with Trichostatin A (TSA) #9950 (1 µM, 4 hr) using Acetyl-Histone H4 (Lys12) (D2W60) Rabbit mAb (green). Actin filaments were labeled with DyLight 554 Phalloidin #13054 (red).
Flow Cytometry Image 1: Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb Expand Image
Flow cytometric analysis of HeLa cells, untreated (blue) or treated with SAHA (green) using Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb. Anti-rabbit IgG (H+L), F(ab')2 fragment (Alexa Fluor® 488 Conjugate) #4412 was used as secondary antibody.
Chromatin Immunoprecipitation Image 1: Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb Expand Image
Chromatin immunoprecipitations were performed with cross-linked chromatin from HeLa cells and either Acetyl-Histone H4 (Lys12) (D2W6O) Rabbit mAb or Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human GAPDH Exon 1 Primers #5516, SimpleChIP® Human RPL30 Exon 3 Primers #7014, and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.