Hexanucleotide (GGGGCC) repeat expansions in a noncoding region of C9ORF72 are the major genetic cause of FTD and ALS (c9FTD/ALS). The RNA structure of GGGGCC repeats renders these transcripts susceptible to an unconventional mechanism of translation—repeat associated non-ATG (RAN) translation. Translation of the GGGGCC-repeat in all reading frames would result in three dipeptide-repeat (DPR) proteins poly-(Gly-Ala), poly-(Gly-Pro) and poly-(Gly-Arg). poly-GA and poly-GP proteins are extremely hydrophobic and may form intracellular aggregates
Specificity
This antibody recognizes C9ORF72/C9RANT (poly-GR) and other proteins containing poly-GR sequence, such as the Epstein Barr virus protein EBNA2
Immunogen
Epitope: poly-GR
Linear peptide corresponding to Epstein-Barr Virus Nuclear Antigen 2 (ENBA2) containing GR repeat sequence.
Application
Detect C9ORF72/C9RANT (poly-GR) using this Anti-C9ORF72/C9RANT (poly-GR) antibody, clone 5A2 validated for use in western blotting & IHC.
Immunohistochemistry Analysis: A representative lot detected poly-GR inclusions from brain tissues of C9orf72 patients with C9ORF72 hexanucleotide expansion (Mori, K., et al. (2013). Science. 339(6125):1335-1338.).
Research Category Neuroscience
Research Sub Category Neurodegenerative Diseases
Quality
Evaluated by Western Blotting using GST fusion proteins with 15 GA, GP, or GR repeats, as well as GST alone without any repeat sequence.
Western Blotting Analysis: 0.2 μg of this antibody detected 10 μg of GR-GST recombinant protein with 15 GR repeats.
Target description
Variable
Physical form
Format: Purified
Protein G Purified
Purified rat monoclonal IgG2aκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Storage and Stability
Stable for 1 year at 2-8°C from date of receipt.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Hexanucleotide repeat expansion in C9ORF72 (C9) is the most prevalent mutation among amyotrophic lateral sclerosis (ALS) patients. The patients carry over ~30 to hundreds or thousands of repeats translated to dipeptide repeats (DPRs) where poly-glycine-arginine (GR) and poly-proline-arginine (PR) are
Repeat expansions in the C9orf72 gene cause amyotrophic lateral sclerosis and frontotemporal dementia characterized by dipeptide-repeat protein (DPR) inclusions. The toxicity associated with two of these DPRs, poly-GR and poly-PR, has been associated with nucleocytoplasmic transport. To investigate the causal
Suggested C9orf72 disease mechanisms for amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration include C9orf72 haploinsufficiency, G4C2/C4G2 RNA foci, and dipeptide repeat (DPR) proteins translated from the G4C2 expansion; however, the role of small expansions (e.g., 30-90 repeats) is unknown
Human molecular genetics, 27(10), 1754-1762 (2018-03-13)
Large expansions of hexanucleotide GGGGCC (G4C2) repeats (hundreds to thousands) in the first intron of the chromosome 9 open reading frame 72 (C9orf72) locus are the strongest known genetic factor associated with amyotrophic lateral sclerosis and frontotemporal lobar degeneration. Different
Frontiers in pharmacology, 11, 569661-569661 (2020-10-06)
Repeat expansion mutations in the C9ORF72 gene are the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Repeat-associated non-AUG translation of this expansion produces dipeptide repeat proteins (DRPs). The arginine containing DRPs, polyGR and polyPR
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