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E2279

Sigma-Aldrich

Monoclonal Anti-Endonuclease VIII antibody produced in mouse

~1.5 mg/mL, clone E8-122, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Monoclonal Anti-Endo VIII

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About This Item

MDL number:
MFCD03792417
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

E8-122, monoclonal

form

buffered aqueous solution

mol wt

antigen ~30 kDa by SDS-PAGE

species reactivity

E. coli

concentration

~1.5 mg/mL

technique(s)

indirect ELISA: suitable
western blot: 10-20 μg/mL using recombinant endonuclease VIII (Cat No. E0651)

isotype

IgM

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

General description

Monoclonal Anti- Endonuclease VIII (mouse IgM isotype) is derived from the E8-122 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from mice . Endonuclease VIII (Endo VIII) from E. coli is a product of the nei gene. It is a DNA N-glycosylase and abasic site lyase (AP1 lyase. It comprises C-terminal Cys4-type β/β-antiparallel zinc finger with an arginine residue (Arg-252).

Specificity

Monoclonal Anti-Endonuclease VIII recognizes endonuclease VIII from E. coli (approx. 30 kDa).

Immunogen

recombinant full length endonuclease VIII from Escherichia coli.

Application

Monoclonal Anti-Endonuclease VIII antibody produced in mouse may be used in enzyme-linked immunosorbent assay (ELISA) and immunoblotting.

Biochem/physiol Actions

Endonuclease VIII (Endo VIII) from E. coli is a DNA repair protein that recognizes and removes modified pyrimidines, such as thymine glycol (Tg) and 5,6,dihydrothymine (DHT), from DNA.. Its modified base substrate specificity overlaps the endonuclease III (endo III, nth) substrate specificity. This cross-reactivity is manifested in E. coli mutants. E. coli nth and nei mutants are either not sensitive or are slightly more sensitive to ionizing radiation and hydrogen peroxides than the wild type. The nei-nth double mutant is hypersensitive to oxidative stress. The mechanism used by Endo VIII to cleave the DNA backbone (lyase activity) is a β-δ elimination, resembling the action of formamidopyrimidine-DNA glycosylase (fpg) protein.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Storage and Stability

For continuous use, store at 2-8 °C for up to one month.For prolonged storage, freeze in working aliquots at −20 °C. Repeated freezing and thawing is not recom-mended. Storage in frost-free freezers is also notrecommended. If slight turbidity occurs upon prolongedstorage, clarify the solution by centrifugation beforeuse. Working dilutions should be discarded if not usedwithin 12 hours.

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

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

E2279-VAR:
E2279-BULK:
E2279-200UL:

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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C D'Ham et al.
Biochemistry, 38(11), 3335-3344 (1999-03-17)
Oligonucleotides that contain a single modified pyrimidine, i.e., thymine glycol (Tg), 5,6-dihydrothymine (DHT), and 5-hydroxycytosine (5-OHC) were synthesized in order to investigate the substrate specificity and the excision mechanism of two Escherichia coli repair enzymes: endonuclease III and formamidopyrimidine DNA
J Laval et al.
Mutation research, 402(1-2), 93-102 (1998-07-24)
As a consequence of oxidative stress, reactive oxygen species are generated in the cells. They interact with DNA and induce various modifications. Among them, oxidised purines (such as C8-oxoguanine and purines whose imidazole ring is opened), oxidised pyrimidines (such as
D Jiang et al.
The Journal of biological chemistry, 272(51), 32230-32239 (1998-01-24)
Escherichia coli endonuclease VIII (endo VIII) was identified as an enzyme that, like endonuclease III (endo III), removes radiolysis products of thymine including thymine glycol, dihydrothymine, beta-ureidoisobutyric acid, and urea from double-stranded plasmid or phage DNA and cleaves the DNA

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