Nbs1 Antibody (1D7)

Novus Biologicals, part of Bio-Techne | Catalog # NB100-221

Novus Biologicals, part of Bio-Techne
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NB100-221
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Key Product Details

Validated by

Knockout/Knockdown

Species Reactivity

Validated:

Human, Mouse, Rat

Cited:

Human, Mouse

Applications

Validated:

Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunoprecipitation, Knockdown Validated, Simple Western, Western Blot

Cited:

IF/IHC, Immunocytochemistry/ Immunofluorescence, Knockdown Validated, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # 1D7

Concentration

Concentrations vary lot to lot. See vial label for concentration. If unlisted please contact technical services.

View all Nbs1 Antibodies »

Product Specifications

Immunogen

The complete coding region of the human p95/Nbs1 expressed in E. coli.

Reactivity Notes

Human reactivity reported in (PMID:30699358). Please note that this antibody is reactive to Mouse and derived from the same host, Mouse. Mouse-On-Mouse blocking reagent may be needed for IHC and ICC experiments to reduce high background signal. You can find these reagents under catalog numbers PK-2200-NB and MP-2400-NB. Please contact Technical Support if you have any questions.

Localization

Nuclear

Specificity

Nijmegen breakage syndrome (NBS, nibrin) is an autosomal recessive chromosomal instability syndrome characterized by microcephaly, growth retardation, immunodeficiency, and cancer predisposition. Nbs1 Antibody (1D7) recognizes the 95kDa NBS protein which contains a fork FHA head-associated domain that is adjacent to BRCT, a breast cancer C terminal domain, that has been implicated in protein-protein interactions. NBS is member of the Mre11/Rad50, p400 double-strand break repair complex involved in double-strand break repair and cell-cycle checkpoint functions.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Theoretical MW

85 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for Nbs1 Antibody (1D7)

Knockdown Validated: Nbs1 Antibody (1D7) [NB100-221]

Knockdown Validated: Nbs1 Antibody (1D7) [NB100-221]

Knockdown Validated: Nbs1 Antibody (1D7) [NB100-221] - Non-transfected (-) and transfected (+) 293T whole cell extracts (30 ug) were separated by 7.5% SDS-PAGE, and the membrane was blotted with NBS1 antibody (1D7) [NB100-221] diluted at 1:500. The HRP-conjugated anti-mouse IgG antibody [NBP2-19382] was used to detect the primary antibody.
Western Blot: Nbs1 Antibody (1D7) [NB100-221]

Western Blot: Nbs1 Antibody (1D7) [NB100-221]

Western Blot: Nbs1 Antibody (1D7) [NB100-221] - Various whole cell extracts (30 ug) were separated by 7.5% SDS-PAGE, and the membrane was blotted with Nbs1 Antibody (1D7) [NB100-221] diluted at1:500. The HRP-conjugated anti-mouse IgG antibody [NBP2-19382] was used to detect the primary antibody. Observed Molecular Weight at ~95 kDa.
Western Blot: Nbs1 Antibody (1D7) [NB100-221]

Western Blot: Nbs1 Antibody (1D7) [NB100-221]

Western Blot: Nbs1 Antibody (1D7) [NB100-221] - Sample (30 ug of whole cell lysate). A: HepG2. 7.5% SDS PAGE. Nbs1 Antibody (1D7) [NB100-221] diluted at 1:1000. The HRP-conjugated anti-mouse IgG antibody (NBP2-19382) was used to detect the primary antibody. Observed Molecular Weight at ~97 kDa.
View 1 more images

Applications for Nbs1 Antibody (1D7)

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1:100

Western Blot

1:500-1:3000
Application Notes
Use in IHC, ICC/IF, and Western Blot reported in (PMID:22075984). IP Assay dependent.
See Simple Western Antibody Database for Simple Western validation: separated by size
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 3 reviews rated 5 using NB100-221 in the following applications:

Formulation, Preparation, and Storage

Purification

Protein G purified

Formulation

PBS

Preservative

No Preservative

Concentration

Concentrations vary lot to lot. See vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: Nbs1

NBS1 (Nijmegen breakage syndrome protein 1, Nibrin) is the eukaryotic component of MRN complex (Mre11-Rad50-Nbs1) involved in homologous recombination repair for DNA double-strand breaks (DSBs) and DNA damage-induced checkpoint activation. NBS1, a nuclear protein with a theoretical molecular weight of 65-85 kDa, is composed of 2 functional regions: the forkhead associated (FHA) N-terminal domain (24-83 amino acids) and the breast cancer C-terminus (BRCT) domain (105-181 amino acids). Mutations in the NBN gene are associated with Nijmegen breakage syndrome, characterized by microcephaly, growth retardation, immunodeficiency, and an increased susceptibility to prostate cancer, lung cancer, liver cancer and intrahepatic cholangiocarcinoma (IHC) (1).

In DNA double strand break repair, the FHA/BRCT domains bind DNA damage sensor proteins including gamma H2AX (phospho Ser139), phosphorylated MDC1 and CtIP (CtBP-interacting protein). NBS1 then recruits the other members of the MRN complex, Mre11 and Rad50, to the proximity of DNA DSBs. The MRN complex has also been shown to interact with ATM or ATR kinases in the presence of DSBs or replication fork stalling, respectively. Phosphorylation of NBS1 at Ser 278 and Ser343 in response to ionizing radiation (IR) is dependent on ATM and is important for activation of the S phase checkpoint. The activation of ATM in response to DNA damage is also facilitated by MRN and may lead to induction of apoptosis (2, 3).

References

1. Bian L, Meng Y, Zhang M, Li D. (2019) MRE11-RAD50-NBS1 complex alterations and DNA damage response: implications for cancer treatment. Mol Cancer. 26;18(1):169. PMID: 31767017

2. Zhang Y, Zhou J, Lim CU. (2006) The role of NBS1 in DNA double strand break repair, telomere stability, and cell cycle checkpoint control. Cell Res. 16(1):45-54. PMID: 16467875

3. Komatsu K. NBS1 and multiple regulations of DNA damage response. (2016) J Radiat Res. 57 Suppl 1:i11-i17. PMID: 27068998

Long Name

Nijmegen Breakage Syndrome 1

Alternate Names

NBN, Nibrin, p95

Entrez Gene IDs

4683 (Human)

Gene Symbol

NBN

UniProt

O60934

Additional Nbs1 Products

Product Documents for Nbs1 Antibody (1D7)

Product Datasheets

Certificate of Analysis

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Product Specific Notices for Nbs1 Antibody (1D7)

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

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