Product: p95/NBS1 Antibody
Catalog: AF6026
Description: Rabbit polyclonal antibody to p95/NBS1
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Sheep, Rabbit, Dog
Mol.Wt.: 95kDa; 85kD(Calculated).
Uniprot: O60934
RRID: AB_2834959

View similar products>>

   Size Price Inventory
 100ul $280 In stock
 200ul $350 In stock

Lead Time: Same day delivery

For pricing and ordering contact:
Local distributors

Product Info

WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Pig(91%), Bovine(80%), Sheep(80%), Rabbit(82%), Dog(82%)
p95/NBS1 Antibody detects endogenous levels of total p95/NBS1.
Cite Format: Affinity Biosciences Cat# AF6026, RRID:AB_2834959.
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.


AT V1; AT V2; ATV; Cell cycle regulatory protein p95; FLJ10155; MGC87362; Nbn; NBN_HUMAN; NBS 1; NBS; NBS1; Nibrin; Nijmegen breakage syndrome 1 (nibrin); Nijmegen breakage syndrome; Nijmegen breakage syndrome protein 1; p95; p95 protein of the MRE11/RAD50 complex;



Ubiquitous. Expressed at high levels in testis.

NBS1 is a member of the MRE11/RAD50 double-strand break repair complex. Involved in DNA double-strand break repair and DNA damage-induced checkpoint activation. Mutation results in the Nijmegen breakage syndrome (NBS), an autosomal recessive chromosomal instability syndrome.



Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - O60934 As Substrate

Site PTM Type Enzyme
K3 Acetylation
K3 Ubiquitination
Y16 Phosphorylation
Y24 Phosphorylation
S58 Phosphorylation
T60 Phosphorylation
K73 Ubiquitination
K82 Ubiquitination
K188 Ubiquitination
S195 Phosphorylation
Y197 Phosphorylation
K208 Acetylation
K208 Ubiquitination
K233 Acetylation
S278 Phosphorylation Q13315 (ATM)
S292 Phosphorylation
K334 Acetylation
K334 Ubiquitination
T335 Phosphorylation
T336 Phosphorylation
T337 Phosphorylation
S341 Phosphorylation
S343 Phosphorylation Q99986 (VRK1) , Q13535 (ATR) , Q13315 (ATM)
S347 Phosphorylation
T367 Phosphorylation
K388 Methylation
S397 Phosphorylation Q13315 (ATM)
T402 Phosphorylation
S406 Phosphorylation
S418 Phosphorylation
T420 Phosphorylation
K423 Ubiquitination
Y429 Phosphorylation
S432 Phosphorylation P24941 (CDK2)
T434 Phosphorylation
S438 Phosphorylation
K441 Acetylation
S442 Phosphorylation
S447 Phosphorylation
S462 Phosphorylation
C478 S-Nitrosylation
T485 Phosphorylation
S488 Phosphorylation
T493 Phosphorylation
T497 Phosphorylation
S499 Phosphorylation
K504 Acetylation
S509 Phosphorylation
T516 Phosphorylation
S518 Phosphorylation
T524 Phosphorylation
K529 Ubiquitination
S535 Phosphorylation
K544 Acetylation
K550 Acetylation
K568 Acetylation
K582 Sumoylation
T602 Phosphorylation
S604 Phosphorylation
S611 Phosphorylation
S612 Phosphorylation
S615 Phosphorylation Q13535 (ATR) , Q13315 (ATM)
K627 Ubiquitination
S630 Phosphorylation
K635 Ubiquitination
S661 Phosphorylation
K665 Acetylation
K665 Ubiquitination
S673 Phosphorylation
Y679 Phosphorylation
K683 Ubiquitination
K690 Acetylation
Y693 Phosphorylation
K698 Acetylation
S706 Phosphorylation
K715 Acetylation
K715 Methylation
K715 Ubiquitination
S738 Phosphorylation
K751 Methylation
K751 Ubiquitination

Research Backgrounds


Component of the MRE11-RAD50-NBN (MRN complex) which plays a critical role in the cellular response to DNA damage and the maintenance of chromosome integrity. The complex is involved in double-strand break (DSB) repair, DNA recombination, maintenance of telomere integrity, cell cycle checkpoint control and meiosis. The complex possesses single-strand endonuclease activity and double-strand-specific 3'-5' exonuclease activity, which are provided by MRE11. RAD50 may be required to bind DNA ends and hold them in close proximity. NBN modulate the DNA damage signal sensing by recruiting PI3/PI4-kinase family members ATM, ATR, and probably DNA-PKcs to the DNA damage sites and activating their functions. It can also recruit MRE11 and RAD50 to the proximity of DSBs by an interaction with the histone H2AX. NBN also functions in telomere length maintenance by generating the 3' overhang which serves as a primer for telomerase dependent telomere elongation. NBN is a major player in the control of intra-S-phase checkpoint and there is some evidence that NBN is involved in G1 and G2 checkpoints. The roles of NBS1/MRN encompass DNA damage sensor, signal transducer, and effector, which enable cells to maintain DNA integrity and genomic stability. Forms a complex with RBBP8 to link DNA double-strand break sensing to resection. Enhances AKT1 phosphorylation possibly by association with the mTORC2 complex.


Phosphorylated by ATM in response of ionizing radiation, and such phosphorylation is responsible intra-S phase checkpoint control and telomere maintenance.

Subcellular Location:

Nucleus. Nucleus>PML body. Chromosome>Telomere. Chromosome.
Note: Localizes to discrete nuclear foci after treatment with genotoxic agents.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Ubiquitous. Expressed at high levels in testis.

Subunit Structure:

Component of the MRN complex composed of two heterodimers RAD50/MRE11 associated with a single NBN. As part of the MRN complex, interacts with MCM9; the interaction recruits the complex to DNA repair sites. Component of the BASC complex, at least composed of BRCA1, MSH2, MSH6, MLH1, ATM, BLM, RAD50, MRE11 and NBN. Interacts with histone H2AX this requires phosphorylation of H2AX on 'Ser-139'. Interacts with HJURP. Interacts with INTS3. Interacts with KPNA2. Interacts with TERF2. Interacts with RBBP8; the interaction links the role of the MRN complex in DNA double-strand break sensing to resection. Interacts with SP100; recruits NBN to PML bodies. Interacts with ATF2. Interacts with MTOR, MAPKAP1 isoform 2 and RICTOR; indicative for an association with the mTORC2 complex. Interacts with MRNIP.

(Microbial infection) Interacts with herpes simplex virus 1 protein UL12.


The FHA and BRCT domains are likely to have a crucial role for both binding to histone H2AX and for relocalization of MRE11/RAD50 complex to the vicinity of DNA damage.

The C-terminal domain contains a MRE11-binding site, and this interaction is required for the nuclear localization of the MRN complex.

The EEXXXDDL motif at the C-terminus is required for the interaction with ATM and its recruitment to sites of DNA damage and promote the phosphorylation of ATM substrates, leading to the events of DNA damage response.

Research Fields

· Cellular Processes > Cell growth and death > Cellular senescence.   (View pathway)

· Genetic Information Processing > Replication and repair > Homologous recombination.

Restrictive clause


Affinity Biosciences tests all products strictly. Citations are provided as a resource for additional applications that have not been validated by Affinity Biosciences. Please choose the appropriate format for each application and consult Materials and Methods sections for additional details about the use of any product in these publications.

For Research Use Only.
Not for use in diagnostic or therapeutic procedures. Not for resale. Not for distribution without written consent. Affinity Biosciences will not be held responsible for patent infringement or other violations that may occur with the use of our products. Affinity Biosciences, Affinity Biosciences Logo and all other trademarks are the property of Affinity Biosciences LTD.