Key Product Details

Validated by

Biological Validation

Species Reactivity

Human

Applications

Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG
View all Nbs1 Primary Antibodies »

Product Specifications

Immunogen

Phosphopeptide containing human Nbs1 S343 site

Specificity

Detects human Nbs1 when phosphorylated at S343. Does not recognize Nbs1 when unphosphorylated at S343.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for Human Phospho-Nbs1 (S343) Antibody

Detection of Human Phospho-Nbs1 (S343) antibody by Western Blot.

Detection of Human Phospho-Nbs1 (S343) by Western Blot.

Western blot shows Nbs1 immunoprecipitated from lysates of HeLa human cervical epithelial carcinoma cell line using Human Nbs1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1573). HeLa cell line was mock treated or exposed to 100 J/m2UV-C for 3 hours. PVDF membrane was probed with 1 µg/mL Rabbit Anti-Human Phospho-Nbs1 (S343) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4944) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band for Phospho-Nbs1 (S343) was detected at approximately 95 kDa (as indicated). For additional reference the membrane was stripped and reprobed with 1 µg/mL Human/Mouse/Rat Nbs1 Monoclonal Antibody (lower panel, Catalog # MAB1573) This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Applications for Human Phospho-Nbs1 (S343) Antibody

Application
Recommended Usage

Western Blot

1 µg/mL
Sample: Phospho-Nbs1 (S343) immunoprecipitated from lysates of HeLa human cervical epithelial carcinoma cell line exposed to UV-C using Human Nbs1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1573)

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS and Sodium Azide with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Nbs1

The Nijmegen Breakage Syndrome 1 (Nbs1) protein is a member of the Mre11/Rad50/Nbs1 (MRN) protein complex that binds to DNA double-strand breaks in cells exposed to DNA damaging agents. In addition, the MRN complex colocalizes with replication forks during DNA replication. The MRN complex plays an important role in routine cell cycle progression and genotoxic stress responses by facilitating DNA repair. Nbs1 is phosphorylated at S343 by ATM in response to double-strand breaks and by ATR under replication stress. This phosphorylation triggers the inactivation of late origin firing, which is essential for mediating the intra-S-phase checkpoint. Mutation of the nbs1 gene and resultant loss of Nbs1 protein expression in humans results in the chromosomal instability disease, Nijmegen Breakage Syndrome.

Long Name

Nijmegen Breakage Syndrome 1

Alternate Names

NBN, Nibrin, p95

Entrez Gene IDs

4683 (Human); 27354 (Mouse); 85482 (Rat)

Gene Symbol

NBN

Additional Nbs1 Products

Product Documents for Human Phospho-Nbs1 (S343) Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human Phospho-Nbs1 (S343) Antibody

For research use only

Related Research Areas

DNA Repair

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