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Satellite DNAs between selfishness and functionality: structure, genomics and evolution of tandem repeats in centromeric (hetero)chromatin.
TLDR
It is argued that tandem repeats may be advantageous forms of DNA sequences in (peri)centromeres due to concerted evolution, which maintains high intra-array and intrapopulation sequence homogeneity of satellite arrays, while allowing rapid changes in nucleotide sequence and/or composition of satellite repeats. Expand
Satellite DNA evolution.
TLDR
This chapter focuses on the structural and evolutionary dynamics of satellite DNAs and the potential molecular mechanisms responsible for rapid changes of the genomic areas they constitute. Expand
Centromere identity from the DNA point of view
TLDR
The current state of knowledge on the composition and functionality of DNA sequences underlying active centromeres are reviewed and their contribution to the functioning of different centromere types in higher eukaryotes is discussed. Expand
Evolution of satellite DNAs from the genus Palorus--experimental evidence for the "library" hypothesis.
TLDR
The results explain satellite DNA evolution, confirming the hypothesis that related species share a "library" of conserved satellite sequences, some of which could be amplified into a major satellite. Expand
Sequence of PRAT Satellite DNA ``Frozen'' in Some Coleopteran Species
TLDR
This unexpectedly high conservation of PRAT satellite DNA sequence might be induced by a small bias of turnover mechanisms favoring the ancestral sequence in the process of molecular drive. Expand
Structural and functional liaisons between transposable elements and satellite DNAs
TLDR
Motivated by accumulating data about sequence elements that incorporate features of both TEs and satDNAs, here is an overview of their structural and functional liaisons. Expand
Genome-wide analysis of tandem repeats in Tribolium castaneum genome reveals abundant and highly dynamic tandem repeat families with satellite DNA features in euchromatic chromosomal arms
TLDR
Binformatics analysis of assembled Tribolium castaneum genome disclosed significant contribution of TRs in euchromatic chromosomal arms and clear predominance of satellite DNA-typical 170 bp monomers in arrays of ≥5 repeats. Expand
TCAGG, an alternative telomeric sequence in insects
TLDR
Study of the distribution of telomeric DNAs in 30 coleopteran beetles showed that arrays built of a TCAGG repeat substitute for (TTAGG)n sequences in all tested species within the superfamily Tenebrionoidea, and provided the experimental evidence that (TCAGg)n repeats represent the terminal sequences on all chromosomes of the model species Tribolium castaneum. Expand
Similarity of Structural Features and Evolution of Satellite DNAs from Palorus subdepressus (Coleoptera) and Related Species
TLDR
Results suggest that the higher-order structure and repeat length, but not the nucleotide sequence itself, are maintained through evolution of these species. Expand
Reactive cysteine in the active-site motif of Bacteroides thetaiotaomicron dipeptidyl peptidase III is a regulatory residue for enzyme activity
TLDR
Data obtained suggest that Cys450 of B. thetaiotaomicron DPP III is a regulatory residue for the enzyme activity, which is wholly responsible for the inactivation effect of sulfhydryl reagents. Expand
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