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Key Documents

ABE1354

Sigma-Aldrich

Anti-Exo1

from rabbit

Synonym(s):

Exonuclease 1, hExo1, Exonuclease I, hExoI

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

species reactivity

human

packaging

antibody small pack of 25 μg

technique(s)

immunoprecipitation (IP): suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

target post-translational modification

unmodified

Gene Information

human ... EXO1(9156)

General description

Exonuclease 1 (UniProt: Q9UQ84; also known as hExo1, Exonuclease I, hExoI) is encoded by the EXO1 (also known as EXOI, HEX1) gene (Gene ID: 9156) in human. Exonuclease 1 is a magnesium-dependent protein with 5′ to 3′ exonuclease and an RNase H activity. It may also possess a cryptic 3′→5′ double-stranded DNA exonuclease activity. It is highly expressed in bone marrow, testis and thymus. Higher levels of expression are also observed in fetal liver. Lower expression has been observed in colon, lymph nodes, ovary, placenta, prostate, small intestine, spleen, and stomach. It functions in DNA mismatch repair to excise mismatch-containing DNA tracts directed by strand breaks located either 5′ or 3′ to the mismatch. It interacts physically with the DNA mismatch repair proteins, Msh2 and Mlh1, and is involved in the excision of the mispaired nucleotide. Exonuclease 1 is phosphorylated upon DNA damage and in response to agents stalling DNA replication, probably by ATM or ATR. It is shown to be phosphorylated at Serine 454, Threonine 621, and Serine 714 upon DNA-damage caused by treatment with hydroxyurea, but not upon IR treatment. The hydroxyurea-induced triple phosphorylation of exonuclease 1 facilitates destabilization/degradation of the protein.

Specificity

This rabbit polyclonal antibody detects Exonuclease 1 in human cells. It targets an epitope within 16 amino acids from the C-terminal half.

Immunogen

Epitope: unknown
KLH-conjugted linear peptide corresponding to 16 amino acids from the C-terminal half of human Exonuclease 1. The immunogen sequence is conserved in both isoforms 1 and 2.

Application

Anti-Exo1, Cat. No. ABE1354, is a highly specific rabbit polyclonal antibody that targets Exonuclease 1 and has been tested for use in Immunoprecipitation and Western Blotting.
Immunoprecipitation Analysis: A representative lot detected Exo1 in HeLa cell lysate (Courtesy of Dr. Zhongsheng You at Washington University in St. Louis).

Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected Exo1 in HeLa and siExo1 hela cell lysates (Courtesy of Dr. Zhongsheng You at Washington University in St. Louis).
Research Category
Epigenetics & Nuclear Function

Quality

Evaluated by Western Blotting in 293T cells transfected with GFP-Exo1.

Western Blotting Analysis: 2 µg/mL of this antibody detected Exo1 in 293T cells transfected with GFP-Exo1.

Target description

~145 kDa observed; 94.10 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Physical form

Affinity Purified
Format: 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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Shan Li et al.
Molecular cell, 83(4), 556-573 (2023-01-26)
The protection of DNA replication forks under stress is essential for genome maintenance and cancer suppression. One mechanism of fork protection involves an elevation in intracellular Ca2+ ([Ca2+]i), which in turn activates CaMKK2 and AMPK to prevent uncontrolled fork processing
Xiao Wu et al.
Nature communications, 12(1), 4373-4373 (2021-07-18)
Although homologous recombination (HR) is indicated as a high-fidelity repair mechanism, break-induced replication (BIR), a subtype of HR, is a mutagenic mechanism that leads to chromosome rearrangements. It remains poorly understood how cells suppress mutagenic BIR. Trapping of Topoisomerase 1

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