NBN, Polyclonal Antibody

Nibrin; Nijmegen breakage syndrome protein 1; Cell cycle regulatory protein p95; NBN; NBS

For Research Use Only. Not for use in diagnostic procedures.

Polyclonal

Rabbit

The antibody detects endogenous levels of total NBN protein.

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.

1.0 mg/ml (lot specific)

Store at -20 degree C

Small volumes of anti-NBN antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

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 MRE11A. 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.Varon R.,, Cell 93:467-476(1998).Carney J.P., Cell 93:477-486(1998).Matsuura S., Nat. Genet. 19:179-181(1998).

Total protein Ab

Western Blot (WB)

Western blotting: 1:500~1:3000

Western blot analysis of extracts from HT-29 cells and A549 cells, using NBN antibody.

84,959 Da

nibrin

nibrin

Nibrin

NBS; NBS1; P95  [Similar Products]

NBN_HUMAN

Mutations in this gene are associated with Nijmegen breakage syndrome, an autosomal recessive chromosomal instability syndrome characterized by microcephaly, growth retardation, immunodeficiency, and cancer predisposition. The encoded protein is a member of the MRE11/RAD50 double-strand break repair complex which consists of 5 proteins. This gene product is thought to be involved in DNA double-strand break repair and DNA damage-induced checkpoint activation. [provided by RefSeq, Jul 2008]

NBS1: 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.

Protein type: DNA repair, damage; Cell cycle regulation

Chromosomal Location of Human Ortholog: 8q21

Cellular Component: nucleoplasm; PML body; Mre11 complex; nuclear chromosome, telomeric region; nucleolus; replication fork; nucleus; nuclear inclusion body

Molecular Function: ATP-dependent DNA helicase activity; protein binding; damaged DNA binding; protein N-terminus binding; transcription factor binding

Biological Process: DNA damage response, signal transduction by p53 class mediator; mitotic cell cycle checkpoint; isotype switching; positive regulation of kinase activity; DNA repair; positive regulation of protein amino acid autophosphorylation; DNA duplex unwinding; double-strand break repair via homologous recombination; regulation of DNA replication initiation; cell proliferation; meiotic cell cycle; mitotic cell cycle G2/M transition DNA damage checkpoint; double-strand break repair; DNA damage checkpoint; blastocyst growth; cell cycle arrest; neuromuscular process controlling balance; telomere maintenance

Disease: Leukemia, Acute Lymphoblastic; Nijmegen Breakage Syndrome; Aplastic Anemia

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