The Ku protein is localized in the nucleus and is composed of subunits referred to as Ku-70 (or p70) and Ku-86 or (p86) which is also known by the synonym Ku-80 or (p80). Ku was first described as an autoantigen to which antibodies were produced in a patient with scleroderma-polymyositis overlap syndrome, and was later found in the sera of patients with other rheumatic diseases. Ku has several functions, including cell signaling, DNA replication and transcriptional activation. Ku is involved in Pol II-directed transcription by virtue of its DNA binding activity; serving as the regulatory component of the DNA-associated protein kinase that phosphorylates Pol II and transcription factor Sp. Ku proteins also activate transcription from the U1 small nuclear RNA and the human transferrin receptor gene promoters.
Applications
WB, IHC-P
Dilutions
WB: 1-2 µg/ml, IHC-P: 1-2 µg/ml
Reactivity
Human
Immunogen
Recombinant fragment, around amino acids 300-500, of human Ku80 protein. The exact sequence is proprietary.
Host
Mouse
Clonality
Monoclonal
Clone ID
XRCC5/7315
Isotype
IgG1
Light Chains
kappa
Conjugate
Unconjugated
Purification
Protein A/G chromatography.
Concentration
200 µg/ml
Molecular Weight
80-86 kDa
Product Form
Liquid
Formulation
Supplied in 10mM Phosphate Buffered Saline with 0.05% BSA and 0.05% Sodium Azide.
Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.