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ABT264

Sigma-Aldrich

Anti-beta Actin Antibody, arginylated (N-terminal)

from rabbit, purified by affinity chromatography

Synonym(s):

Actin, cytoplasmic 1, arginylated, beta Actin, arginylated

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

purified by

affinity chromatography

species reactivity

mouse, rat, human

species reactivity (predicted by homology)

orangutan (based on 100% sequence homology), canine (based on 100% sequence homology), rabbit (based on 100% sequence homology), hamster (based on 100% sequence homology)

technique(s)

dot blot: suitable
immunocytochemistry: suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... ACTB(60)

General description

Actin, cytoplasmic 1 (UniProt P60709; also known as beta-actin, PS1TP5-binding protein 1) is encoded by the ACTB (also known as BRWS1, PS1TP5BP1) gene (Gene ID 60) in human. Post-translational protein arginylation is mediated by Arg–transfer RNA (-tRNA) protein transferase (Ate1; arginyltransferase). β- and γ-actins are the major structural components of the actin cytoskeleton in nonmuscle cells. Despite their similarity, the β-, but not the γ-, actin is N-terminally arginylated in vivo, where the first two N-terminal amino acids are removed and replaced with an arginine (from NH2-MDDDIAAL- to NH2-RDDIAAL-). In the absence of arginylation, actin forms aggregates during cell-free polymerization. Fibroblasts derived from Ate1 knockout (KO) mice show collapsed lamella, which can be rescued by reintroducing N-terminally arginylated β-actin into the Ate1 KO cells. Intracellular actin polymer levels are shown to drastically decrease in arginylation-deficient cells, which results from changes in actin polymerization properties.

Specificity

This polyclonal antibody detects beta-actin posttranslationally modified by the removal of Met1 and Asp 2 and the arginylation of Asp3. This antibody does not react with beta-actin with unmodified N-terminus.

Immunogen

C-terminally KLH-conjugated linear peptide corresponding to human beta-actin N-terminal sequence with arginylation modification.
Epitope: N-terminus.

Application

Immunocytochemistry Analysis: 2.0 µg/mL from a representative lot detected N-terminally arginylated beta actin in HUVECs and HeLa cells.

Western Blotting Analysis: 2.0 µg/mL from a representative lot detected N-terminally arginylated beta actin in human (HeLa, HEK293, HepG2, HUVEC, Jurkat, PC3), rat (PC-12 pheochromocytoma), and murine (C2C12 myoblast, NIH/3T3, and Raw 264.7) cell lysates, as well as in human placenta and mouse brain tissue homogenates.

Dot Blot Analysis: 0.2 µg/mL from a representative lot detected immunogen peptide, but not the corresponding peptide without the N-terminus arginine (Courtesy of Dr. Anna Kashina, University of Pennsylvania, Philadelphia, PA).

Western Blotting Analysis: 0.2 µg/mL from a representative lot detected greatly reduced beta actin N-terminal arginylation modification in Arg-transfer RNA (Arg-tRNA) protein transferase (Ate1) knockout mouse embryonic fibroblasts (Courtesy of Dr. Anna Kashina, University of Pennsylvania, Philadelphia, PA).

Note: Goat serum is found to interfere with the staining by this polyclonal antibody, BSA is recommended for sample blocking when using this product.
Research Category
Cell Structure
Research Sub Category
Cytoskeleton
This Anti-beta Actin Antibody, arginylated (N-terminal) is validated for use in Dot Blot, Immunocytochemistry, and Western Blotting for the detection of beta Actin N-terminal arginylation.

Quality

Evaluated by Western Blotting in A431 cell lysate.

Western Blotting Analysis: 2.0 µg/mL of this antibody detected N-terminally arginylated beta actin in human A431 cell lysate.

Target description

~43 kDa observed.

Physical form

Affinity purified.
Purified rabbit polyclonal antibody 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 Code

12 - Non Combustible Liquids

WGK

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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