Abstract：
:Expansions of microsatellite DNA repeats contribute to the inheritance of nearly 30 developmental and neurological disorders. Significant progress has been made in elucidating the molecular mechanisms of repeat expansions using various model organisms and mammalian cell culture, and models implicating nearly all DNA transactions such as replication, repair, recombination, and transcription have been proposed. It is likely that different models of repeat expansions are not mutually exclusive and may explain repeat instability for different developmental stages and tissues. This review focuses on the contributions from studies in budding yeast toward unraveling the mechanisms and genetic control of repeat expansions, highlighting similarities and differences of replication models and describing a balancing act hypothesis to account for apparent discrepancies.
journal_name
Curr Opin Genet Devjournal_title
Current opinion in genetics & developmentauthors
Kim JC,Mirkin SMdoi
10.1016/j.gde.2013.04.009subject
Has Abstractpub_date
2013-06-01 00:00:00pages
280-8issue
3eissn
0959-437Xissn
1879-0380pii
S0959-437X(13)00063-4journal_volume
23pub_type
杂志文章,评审abstract：:The gene regulatory networks that control sex determination vary between species. Despite these differences, comparative studies in insects have found that alternative splicing is reiteratively used in evolution to control expression of the key sex-determining genes. Sex determination is best understood in Drosophila ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2011.03.001
更新日期：2011-08-01 00:00:00
abstract：:The impressive diversity of body plans, lifestyles and segmental specializations exhibited by crustaceans (barnacles, copepods, shrimps, crabs, lobsters and their kin) provides great material to address longstanding questions in evolutionary developmental biology. Recent advances in forward and reverse genetics and in...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2016.07.004
更新日期：2016-08-01 00:00:00
abstract：:Molecular biological techniques have contributed greatly to the study of vertebrate ocular tissues. The specification of ocular tissues has been shown to be closely related to the expression of transcription factors encoded by genes such as Pax6 and microphthalmia. Lens-specific expression of the delta 1-crystallin ge...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/0959-437x(94)90137-r
更新日期：1994-10-01 00:00:00
abstract：:Recent technological and computational advances in understanding the transcriptional and chromatin features of single cells have begun answering longstanding questions in the extent and impact of biological heterogeneity. Here, we outline the intrinsic and extrinsic mechanisms that underlie the transcriptional and fun...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2015.11.004
更新日期：2016-04-01 00:00:00
abstract：:The success of treatment of cancer patients depends on matching the most effective therapeutic regimen with the characteristics of the individual patient, balancing benefit against risk of adverse events. The primary challenge in achieving this goal is the heterogeneity of the disease, recognizing that breast, lung, c...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2008.01.018
更新日期：2008-02-01 00:00:00
abstract：:Baculoviruses continue to serve as workhorse vectors for the high-level expression of eukaryotic genes in insect cells; however, numerous researchers are also finding novel uses for these vectors by taking advantage of the unique nature of the viruses and their host cells. Concurrently, the technology involved in cons...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(05)80348-x
更新日期：1993-02-01 00:00:00
abstract：:Axonal growth cones (GCs) steer in response to extrinsic cues using mechanisms that include local protein synthesis. This adaptive form of gene regulation occurs with spatial precision and depends on subcellular mRNA localisation. Recent genome-wide studies have shown unexpectedly complex and dynamically changing mRNA...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2011.04.004
更新日期：2011-08-01 00:00:00
abstract：:Recent research has broadened significantly our understanding of how the somite, a specialized mesodermal structure found in vertebrate embryos, gives rise to the cartilage, muscle and tendon cell lineages. The specification of somite derivatives involves the action of patterning signals secreted from adjacent tissue ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(02)00339-8
更新日期：2002-10-01 00:00:00
abstract：:DNA methylation and chromatin modification are two global mechanisms that regulate gene expression. Recent studies provide insight into the mechanism of transcriptional silencing by a methyl-CpG binding protein, MeCP2. MeCP2 is shown to interact with the Sin3/histone deacetylase co-repressor complex. Thus, this intera...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(99)80024-0
更新日期：1999-04-01 00:00:00
abstract：:Recent studies have uncovered a bifunctional role of the diffusible axon guidance molecules netrin-1 and UNC-6 in that they attract some axons and steer others away simultaneously. Homology screens have extended the semaphorin and collapsin family to include at least 20 members, in both secreted and membrane-bound for...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(96)80069-4
更新日期：1996-08-01 00:00:00
abstract：:The eukaryotic nucleus is a highly compartmentalized and dynamic environment. Chromosome territories are arranged nonrandomly within the nucleus and numerous studies have indicated that a gene's position in the nucleus can impact its transcriptional activity. Here, we focus on recent advances in our understanding of t...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2009.02.007
更新日期：2009-04-01 00:00:00
abstract：:In this review we discuss the importance of genetic somatic mosaicism and its impact on brain diseases. We start from introducing the different types of somatic mutations, their frequencies and abundances across development and lifespan. We then describe how weakness in DNA repair mechanisms influences their prevalenc...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.05.002
更新日期：2020-12-01 00:00:00
abstract：:The nature-nurture argument surrounding the mechanisms of disease causation cannot be resolved, as the roles of genes and environment are inextricably entwined. Environmental fluctuation is clearly a major modifier of phenotype, as well as a promoter of evolutionary change. Both types of variability can be mediated by...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2008.07.004
更新日期：2008-06-01 00:00:00
abstract：:Engineering cancer-associated mutations into the mouse germline is an important tool for biological studies of growth control and tumorigenesis. Tractable models of many human cancers now exist in which the initiating genetic lesions have been elucidated and, in some instances, where the cooperating lesions are also k...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(02)00016-3
更新日期：2003-02-01 00:00:00
abstract：:Methods to globally survey gene expression provide valuable insights into gene function during development. In particular, comprehensive in situ hybridization studies have demonstrated that gene expression patterns are extraordinarily diverse and new imaging techniques have been introduced to capture these patterns wi...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2008.08.003
更新日期：2008-12-01 00:00:00
abstract：:The past decade has seen a huge jump in the resolution and scale at which we can interrogate the three-dimensional properties of the genome. This revealed different types of chromatin structures including topologically associating domains, partitioning genes and their enhancers into interacting domains. While the visu...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.12.015
更新日期：2021-01-23 00:00:00
abstract：:SINEs with internal promoters for RNA polymerase III are ubiquitous in the genomes of the animal kingdom, including invertebrates. Although the human Alu family, and related families, originates from 7SL RNA, all other SINEs originate from tRNA. SINEs have been amplified many times, altered in genomic organization and...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(05)80198-4
更新日期：1991-12-01 00:00:00
abstract：:The conversion of one cell type to another is defined as metaplasia (or sometimes it is referred to as transdifferentiation or cellular reprogramming). Metaplasia is important clinically and may predispose to the development of cancer. Barrett's metaplasia is one such example and is the focus of the present review. Ba...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2012.08.001
更新日期：2012-10-01 00:00:00
abstract：:The genomic variability of Southern African groups is characterized by an exceptional degree of diversity, which is the result of long-term local evolutionary history, migrations and gene-flow. Over the last few years several investigations have identified and described signatures related to these processes, revealing...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2018.11.003
更新日期：2018-12-01 00:00:00
abstract：:Population data suggest that many parasitic protozoa (e.g. Trypanosoma, Leishmania, Entamoeba and Giardia) reproduce clonally, but this hypothesis has been highly controversial for Plasmodium falciparum. Although reproduction is predominantly clonal in the enteric bacteria Escherichia coli and Salmonella, the level of...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(05)80119-4
更新日期：1992-12-01 00:00:00
abstract：:Eukaryotic genomes encode genetic information in their linear sequence, but appropriate expression of their genes requires chromosomes to fold into complex three-dimensional structures. Fueled by a growing collection of sequencing and imaging-based technologies, studies have uncovered a hierarchy of DNA interactions, ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.03.005
更新日期：2020-04-01 00:00:00
abstract：:Cancer remains one of the leading causes of death in the developed world and despite impressive advances in therapeutic modalities, only a small subset of patients are currently cured. The underlying genetic heterogeneity of cancers clearly plays a crucial role in determining both the clinical course of individual pat...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.02.012
更新日期：2020-02-01 00:00:00
abstract：:The regulation of transcription elongation within the context of chromatin is a topic of great interest. Even though chromatin presents a barrier to transcription by the PolII machinery in vitro, this process is rather efficient in vivo. Importantly, the chromatin structure of the actively transcribed genes is altered...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2004.02.004
更新日期：2004-04-01 00:00:00
abstract：:The advent of methods for mapping the location of specific proteins across genomes is substantially enlightening our understanding of gene regulation. One recent discovery is that Pol II is concentrated at the 5' end of thousands of genes in mammalian and Drosophila cells. Before this, much research had focused on und...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2011.01.010
更新日期：2011-04-01 00:00:00
abstract：:Ras proteins play a critical role in controlling normal cellular growth and, when activated by mutation, in causing malignant transformation. Regulation of p21ras is achieved by GTPase activating proteins, which control the rate of hydrolysis of GTP to GDP, and also by GDP dissociation stimulators, which catalyze the ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(05)80315-6
更新日期：1992-02-01 00:00:00
abstract：:Folding is an important way by which epithelia are sculpted into three-dimensional shapes during development. Recent studies have integrated quantitative image analysis and physical modeling to uncover contributing mechanisms. It is becoming clear that folding processes often employ multiple mechanisms of force genera...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.02.014
更新日期：2020-08-01 00:00:00
abstract：:The regulation of synapse formation and plasticity in the developing and adult brain underlies a complex interplay of intrinsic genetic programs and extrinsic factors. Recent research identified microRNAs (miRNAs), a class of small non-coding RNAs, as a new functional layer in this regulatory network. Within only a fe...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2011.04.008
更新日期：2011-08-01 00:00:00
abstract：:It has been shown recently that some plant transcription factors that regulate cell fate during development can traffic through plasmodesmata-the intercellular channels that connect plant cells. This phenomenon helps explain the non-autonomous effects of many developmental mutations in plants and defines a novel mecha...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(97)80076-7
更新日期：1997-08-01 00:00:00
abstract：:The DNA damage response (DDR) orchestrates DNA repair and halts cell cycle. If damage is not resolved, cells can enter into an irreversible state of proliferative arrest called cellular senescence. Organismal ageing in mammals is associated with accumulation of markers of cellular senescence and DDR persistence at tel...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2014.06.009
更新日期：2014-06-01 00:00:00
abstract：:Over the last decade we have witnessed the convergence of two powerful experimental designs toward a common goal of defining the molecular subtypes that underpin the likelihood of a cancer patient responding to treatment in the clinic. The first of these 'experiments' has been the systematic sequencing of large number...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2013.12.002
更新日期：2014-02-01 00:00:00
