期刊
NEUROCHEMISTRY INTERNATIONAL
卷 100, 期 -, 页码 11-20出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuint.2016.08.008
关键词
C9orf72; G-quadruplexes; Amyotrophic lateral sclerosis; Frontotemporal dementia; C9-FTD/ALS; Therapy
资金
- Department of Science and Technology [SB/YS/LS-161/2014]
- DST [SR/FST/LSI-541/2012]
- Indian Council of Medical Research [BIC/ 12(04)/2012]
Hexanucleotide repeat expansions, (G4C2) in the C9orf72 gene are considered as, the single most common genetic cause of both frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS). (G4C2), either as DNA or the transcribed RNA, can folds into unusual secondary structures, including G-quadruplex, R-loop, I-motif and hairpin. These structural polymorphism at both DNA and RNA levels were proposed to initiate molecular cascade leading to ALS/FTD. G-quadruplexes are composed of stacked G4 tetrads, held by hydrophobic bonds, and is highly stable secondary structure. Here, we covers the structural and functional features of G-quadruplexes with an emphasis on C9orf72-repeat-associated FTD) and ALS (C9-FTD/ALS). We also highlighted tools and techniques used to study the G-quadruplexes. Current perspectives for molecules that target G-quadruplexes as potential therapeutic are discussed. Our extensive analysis of structural features of G-quadruplexes will be used for a better understanding of molecular mechanism of C9-FTD/ALS. (C) 2016 Elsevier Ltd. All rights reserved.
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