Revision 7

#4970Store at -20C

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, W-S, IHC-P, IF-F, IF-IC, FC-FP

REACTIVITY:

H M R Mk B Pg

SENSITIVITY:

Endogenous

MW (kDa):

45

Source/Isotype:

Rabbit IgG

UniProt ID:

#P60709

Entrez-Gene Id:

60

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Simple Western™ 1:10 - 1:50
Immunohistochemistry (Paraffin) 1:50 - 1:200
Immunofluorescence (Frozen) 1:100 - 1:400
Immunofluorescence (Immunocytochemistry) 1:100 - 1:400
Flow Cytometry (Fixed/Permeabilized) 1:100 - 1:400

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.

For a carrier free (BSA and azide free) version of this product see product #93473.

Specificity / Sensitivity

β-Actin (13E5) Rabbit mAb detects endogenous levels of total β-actin protein. Depsite the high sequence identity between the cytoplasmic actin isoforms, β-actin and cytoplasmic γ-actin, β-Actin (13E5) Rabbit mAb #4970 does not cross-react with cytoplasmic γ-actin, or any other actin isoforms.

Species Reactivity:

Human, Mouse, Rat, Monkey, Bovine, Pig

Species predicted to react based on 100% sequence homology

Hamster, Chicken, Dog, Horse, Rabbit

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino-terminus of human β-actin protein.

Background

Actin, a ubiquitous eukaryotic protein, is the major component of the cytoskeleton. At least six isoforms are known in mammals. Nonmuscle β- and γ-actin, also known as cytoplasmic actin, are ubiquitously expressed, controlling cell structure and motility (1). While all actin isoforms are highly homologous, cytoplasmic β- and γ-actin protein sequences differ by only four biochemically similar amino acids (2). For this reason, antibodies raised to β-actin may cross-react with γ-actin, and vice versa. α-cardiac and α-skeletal actin are expressed in striated cardiac and skeletal muscles, respectively; two smooth muscle actins, α- and γ-actin, are found primarily in vascular smooth muscle and enteric smooth muscle, respectively. These actin isoforms regulate the contractile potential of muscle cells (1). Actin exists mainly as a fibrous polymer, F-actin. In response to cytoskeletal reorganizing signals during processes such as cytokinesis, endocytosis, or stress, cofilin promotes fragmentation and depolymerization of F-actin, resulting in an increase in the monomeric globular form, G-actin (3). The ARP2/3 complex stabilizes F-actin fragments and promotes formation of new actin filaments (3). Research studies have shown that actin is hyperphosphorylated in primary breast tumors (4). Cleavage of actin under apoptotic conditions has been observed in vitro and in cardiac and skeletal muscle, as shown in research studies (5-7). Actin cleavage by caspase-3 may accelerate ubiquitin/proteasome-dependent muscle proteolysis (7).

  1. Herman, I.M. (1993) Curr. Opin. Cell Biol. 5, 48-55.
  2. Perrin, B.J. and Ervasti, J.M. (2010) Cytoskeleton (Hoboken) 67, 630-4.
  3. Condeelis, J. (2001) Trends Cell Biol 11, 288-93.
  4. Lim, Y.P. et al. (2004) Clin Cancer Res 10, 3980-7.
  5. Kayalar, C. et al. (1996) Proc Natl Acad Sci U S A 93, 2234-8.
  6. Communal, C. et al. (2002) Proc Natl Acad Sci U S A 99, 6252-6.
  7. Du, J. et al. (2004) J Clin Invest 113, 115-23.

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 W-S: Simple Western™ IHC-P: Immunohistochemistry (Paraffin) IF-F: Immunofluorescence (Frozen) IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized)

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.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 7
#4970

β-Actin (13E5) Rabbit mAb

Western Blotting Image 1: β-Actin (13E5) Rabbit mAb Expand Image
Western blot analysis of cell extracts from various cell lines using beta-Actin (13E5) Rabbit mAb.
Western Blotting Image 2: β-Actin (13E5) Rabbit mAb Expand Image
Western blot analysis of recombinant Actin isoforms using β-Actin (13E5) Rabbit mAb (upper) and Pan-Actin Antibody #4968 (lower).
Western Blotting Image 1: β-Actin (13E5) Rabbit mAb Expand Image
Simple Western™ analysis of lysates (0.1 mg/mL) from HeLa cells using ß-Actin (13E5) Rabbit mAb #4970. The virtual lane view (left) shows the target band (as indicated) at 1:10 and 1:50 dilutions of primary antibody. The corresponding electropherogram view (right) plots chemiluminescence by molecular weight along the capillary at 1:10 (blue line) and 1:50 (green line) dilutions of primary antibody. This experiment was performed under reducing conditions on the Jess™ Simple Western instrument from ProteinSimple, a BioTechne brand, using the 12-230 kDa separation module.
Immunohistochemistry Image 1: β-Actin (13E5) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human heart using beta-Actin (13E5) Rabbit mAb. Note the lack of staining of cardiac actin.
Immunohistochemistry Image 2: β-Actin (13E5) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human leiomyoma using beta-Actin (13E5) Rabbit mAb.
Immunohistochemistry Image 3: β-Actin (13E5) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded 4T1 syngeneic mouse tumor using β-actin (13E5) Rabbit mAb.
Immunohistochemistry Image 4: β-Actin (13E5) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human lung carcinoma using beta-Actin (13E5) Rabbit mAb in the presence of control peptide (left) or beta-Actin Blocking Peptide #1025 (right).
Immunohistochemistry Image 5: β-Actin (13E5) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human skeletal muscle using beta-Actin (13E5) Rabbit mAb. Note the lack of staining of skeletal muscle actin.
Immunofluorescence Image 1: β-Actin (13E5) Rabbit mAb Expand Image
Confocal immunofluorescent analysis of fixed, frozen mouse pancreas at low magnification (left) and high magnification (right) using β-Actin (13E5) Rabbit mAb #4970 (red) and DAPI #4083 (blue).
Immunofluorescence Image 1: β-Actin (13E5) Rabbit mAb Expand Image
Confocal immunofluorescent analysis of COS-7 cells using β-Actin (13E5) Rabbit mAb (green). Blue pseudocolor = DRAQ5®#4084 (fluorescent DNA dye).
Flow Cytometry Image 1: β-Actin (13E5) Rabbit mAb Expand Image
Flow cytometric analysis of HeLa cells using β-Actin (13E5) Rabbit mAb (solid line) compared to concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed line). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.