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2014 ; 6
(1
): 97-110
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Pathological implications of nucleic acid interactions with proteins associated
with neurodegenerative diseases
#MMPMID28509960
Cordeiro Y
; Macedo B
; Silva JL
; Gomes MPB
Biophys Rev
2014[Mar]; 6
(1
): 97-110
PMID28509960
show ga
Protein misfolding disorders (PMDs) refer to a group of diseases related to the
misfolding of particular proteins that aggregate and deposit in the cells and
tissues of humans and other mammals. The mechanisms that trigger protein
misfolding and aggregation are still not fully understood. Increasing
experimental evidence indicates that abnormal interactions between PMD-related
proteins and nucleic acids (NAs) can induce conformational changes. Here, we
discuss these protein-NA interactions and address the role of deoxyribonucleic
(DNA) and ribonucleic (RNA) acid molecules in the conformational conversion of
different proteins that aggregate in PMDs, such as Alzheimer's, Parkinson's, and
prion diseases. Studies on the affinity, stability, and specificity of proteins
involved in neurodegenerative diseases and NAs are specifically addressed. A
landscape of reciprocal effects resulting from the binding of prion proteins,
amyloid-? peptides, tau proteins, huntingtin, and ?-synuclein are presented here
to clarify the possible role of NAs, not only as encoders of genetic information
but also in triggering PMDs.