Q: Could you recommend an optimal Mre11 positive control for Western blot among your products?

A: NBL1-13219 would be the best product since it is intended for this purpose.

Mre11 Antibody Blocking Peptide

Novus Biologicals | Catalog # NB100-56339PEP

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Product Specifications
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Applications

Antibody Competition

View all Mre11 Proteins and Enzymes »

Product Specifications

Application Notes

This peptide is useful as a blocking peptide for NB100-56339. For further blocking peptide related protocol, click here.

Specificity

This peptide is specific for NB100-56339 only.

Protein / Peptide Type

Antibody Blocking Peptide

Formulation, Preparation, and Storage

NB100-56339PEP

Formulation	Peptide dissolved in dH20. Contains no BSA.
Preservative	No Preservative
Concentration	1 mg/ml
Shipping	The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage	Store at -80C. Avoid freeze-thaw cycles.

Background: Mre11

Mre11 (double-strand break repair protein MRE11A) is an important component of MRN/X complex (Mre11, Rad50, and Nbs1/Xrs2), playing a central role in double-strand break (DSB) repair, DNA recombination, telomere integrity maintenance, meiotic cell division, and viral infection. Mre11 and Rad50 comprise the catalytic component of the MRN complex with Rad50 involved in ATP hydrolysis and Mre11 functioning as a nuclease having both single-strand endonuclease and double-strand-specific 3'-5' exonuclease activity (1). The MRN complex is also involved in DNA damage signaling via activation of ATM kinase and in telomeres, where it may modulate t-loop formation (2). In addition, Mre11 is a component of the BASC complex (BRCA1, MSH2, MSH6, MLH1, ATM, BLM, RAD50, MRE11A and NBN) and interacts with DCLRE1C/Artemis as well as DCLRE1B/Apollo (3).

The MRN assembles as a hetero-hexamer consisting of 2 RAD50 subunits, 2 MRE11 nucleases, and 2 NBS1 subunits, specific to eukaryotes. Mre11 is highly conserved with the N-terminal region of the human protein sharing approximately 50% amino acid sequence identity with the yeast ortholog. Human Mre11 has 3 known isoforms with the predominant isoform having a theoretical molecular weight of 80.6kDa. This nuclear localized protein has high expression in proliferating tissues. Defects in Mre11 can lead to genomic instability, telomere shortening, aberrant meiosis, hypersensitivity to DNA damage, and ataxia telangiectasia-like disorder (ATLD). MRN expression has been associated with the prognosis of cancer and MRN mutants have been linked to cancer susceptibility in ovarian cancer and glioma (4, 5).

References

1. Paull TT. (2018) 20 Years of Mre11 Biology: No End in Sight. Mol Cell. 71(3):419-427. PMID: 30057197

2. Syed A, Tainer JA. (2018) The MRE11-RAD50-NBS1 Complex Conducts the Orchestration of Damage Signaling and Outcomes to Stress in DNA Replication and Repair. Annu Rev Biochem. 87:263-294. PMID: 29709199

3. Wang Y, Cortez D, Yazdi P, Neff N, Elledge SJ, Qin J. (2000) BASC, a super complex of BRCA1-associated proteins involved in the recognition and repair of aberrant DNA structures. Genes Dev. 14(8):927-39. PMID: 10783165

4. Kim JH, Grosbart M, Anand R, Wyman C, Cejka P, Petrini JHJ. (2017) The Mre11-Nbs1 Interface Is Essential for Viability and Tumor Suppression. Cell Rep. 18(2):496-507. PMID: 28076792

5. Bian L, Meng Y, Zhang M, Li D. (2019) MRE11-RAD50-NBS1 complex alterations and DNA damage response: implications for cancer treatment. Mol Cancer. 18(1):169. PMID: 31767017

Long Name

Meiotic Recombination 11 Homolog A

Alternate Names

MRE11A

Gene Symbol

MRE11

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Product Specific Notices for Mre11 Antibody Blocking Peptide

This product is for research use only and is not approved for use in humans or in clinical diagnosis. This product is guaranteed for 1 year from date of receipt.

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