Effectors of retrotransposon movement
逆转录转座子运动的效应器
基本信息
- 批准号:10224748
- 负责人:
- 金额:$ 44.25万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-09-01 至 2024-07-31
- 项目状态:已结题
- 来源:
- 关键词:AddressAdoptedAffectAffinity ChromatographyBindingBiochemicalBiochemistryBiologicalBiological AssayBiologyCDK6-associated protein p18CapsidCapsid ProteinsCellsCellular biologyCollaborationsComplementary DNAComplexCryo-electron tomographyCryoelectron MicroscopyDNA Polymerase IIIDataDefective VirusesDefense MechanismsDoseElementsEnzymesEscape MutantEukaryotaEvolutionGAG GeneGenesGeneticGenomeGenomicsGoalsHIVHIV-1IntegraseLeftLong Terminal RepeatsMapsMediatingMethodsMolecular ChaperonesMovementNatureNuclear ExportNucleic AcidsOncogenicParasitesPeptide HydrolasesProcessProductionProteinsRNARNA Polymerase IIIReading FramesRecording of previous eventsResearchResearch PersonnelResistanceRetroelementsRetrotransposonRetroviridaeRetrovirologyReverse TranscriptionRoleSaccharomycesSaccharomyces cerevisiaeShapesSheepSiteStructureSystemTranscriptTranslatingUniversitiesVariantVirusVirus AssemblyVirus-like particleWorkYeastsbasecofactorflexibilitygenome sciencesgenomic RNAgenomic datainformation modelinhibitor/antagonistinsightinterdisciplinary approachinterestmedical schoolsmultidisciplinarynew therapeutic targetnovelparticlestructural biologythree dimensional structure
项目摘要
PROJECT SUMMARY/ABSTRACT
Effectors of retrotransposon movement
The retrovirus-like transposon Ty1 of Saccharomyces is an informative model for understanding how
retrotransposons and retroviruses mobilize, shape the genome, and interact with host and element encoded
factors. The additive nature of the retroelement replication cycle can result in massive increases in copy
number if left unchecked. Host cells have countered with several defense systems, including domestication of
retroelement genes that now act as restriction factors to minimize propagation. We discovered a truncated
form of the Ty1 capsid protein that inhibits virus-like particle assembly and function. This self-encoded
restriction factor expands the repertoire of defense proteins targeting the capsid. Our work also highlights an
intriguing host-parasite strategy. Instead of inhibiting all transposon movement by domesticating the restriction
gene as a distinct locus, yeast and Ty1 may have coevolved a relationship that allows high levels of
transposition when copy numbers are low and progressively less transposition as copy numbers rise. Our goal
is to understand the mechanism and evolution of Ty1 copy number control by a combination of genetic,
genomic, cell biological, biochemical and structural approaches.
项目摘要/摘要
反转录转座子运动效应因子
酵母菌的逆转录病毒样转座子Ty1是一个信息模型,可以用来了解
反转录转座子和逆转录病毒动员基因组,塑造基因组,并与宿主和编码的元件相互作用
各种因素。反转录元件复制周期的加性性质会导致拷贝的大量增加
如果未选中,则为数字。宿主细胞已经用几种防御系统进行了反击,包括驯化
反转录因子基因现在起到限制因素的作用,以最大限度地减少繁殖。我们发现了一个截断的
Ty1衣壳蛋白的一种形式,可抑制病毒样颗粒的组装和功能。这是自编码
限制因子扩大了针对衣壳的防御蛋白的谱系。我们的工作还突出了一个
耐人寻味的宿主-寄生虫策略。而不是通过驯化限制来抑制所有转座子的移动
基因作为一个不同的位点,酵母和Ty1可能已经共同进化出一种关系,允许高水平的
当拷贝数低时换位,随着拷贝数增加,换位逐渐减少。我们的目标
是为了了解Ty1拷贝数控制的机制和进化是由遗传、
基因组、细胞生物学、生化和结构方法。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Genome Assembly of the Ty1-Less Saccharomyces paradoxus Strain DG1768.
- DOI:10.1128/mra.00868-21
- 发表时间:2022-01-20
- 期刊:
- 影响因子:0.8
- 作者:Chen J;McQueary H;Hall DW;Philippsen P;Garfinkel DJ;Bergman CM
- 通讯作者:Bergman CM
Structure of a Ty1 restriction factor reveals the molecular basis of transposition copy number control.
- DOI:10.1038/s41467-021-25849-0
- 发表时间:2021-09-22
- 期刊:
- 影响因子:16.6
- 作者:Cottee MA;Beckwith SL;Letham SC;Kim SJ;Young GR;Stoye JP;Garfinkel DJ;Taylor IA
- 通讯作者:Taylor IA
Reproducible evaluation of transposable element detectors with McClintock 2 guides accurate inference of Ty insertion patterns in yeast.
- DOI:10.1186/s13100-023-00296-4
- 发表时间:2023-07-14
- 期刊:
- 影响因子:4.9
- 作者:Chen, Jingxuan;Basting, Preston J.;Han, Shunhua;Garfinkel, David J.;Bergman, Casey M.
- 通讯作者:Bergman, Casey M.
Cell Compartment-Specific Folding of Ty1 Long Terminal Repeat Retrotransposon RNA Genome.
- DOI:10.3390/v14092007
- 发表时间:2022-09-10
- 期刊:
- 影响因子:0
- 作者:Zawadzka M;Andrzejewska-Romanowska A;Gumna J;Garfinkel DJ;Pachulska-Wieczorek K
- 通讯作者:Pachulska-Wieczorek K
RNA Binding Properties of the Ty1 LTR-Retrotransposon Gag Protein.
- DOI:10.3390/ijms22169103
- 发表时间:2021-08-23
- 期刊:
- 影响因子:5.6
- 作者:Gumna J;Andrzejewska-Romanowska A;Garfinkel DJ;Pachulska-Wieczorek K
- 通讯作者:Pachulska-Wieczorek K
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David J. Garfinkel其他文献
Erratum to: ribosomal protein and biogenesis factors affect multiple steps during movement of the Saccharomyces cerevisiae Ty1 retrotransposon
- DOI:
10.1186/s13100-016-0060-1 - 发表时间:
2016-02-09 - 期刊:
- 影响因子:3.100
- 作者:
Susmitha Suresh;Hyo Won Ahn;Kartikeya Joshi;Arun Dakshinamurthy;Arun Kannanganat;David J. Garfinkel;Philip J. Farabaugh - 通讯作者:
Philip J. Farabaugh
A self-encoded capsid derivative restricts Ty1 retrotransposition in Saccharomyces
- DOI:
10.1007/s00294-015-0550-6 - 发表时间:
2015-12-09 - 期刊:
- 影响因子:1.600
- 作者:
David J. Garfinkel;Jessica M. Tucker;Agniva Saha;Yuri Nishida;Katarzyna Pachulska-Wieczorek;Leszek Błaszczyk;Katarzyna J. Purzycka - 通讯作者:
Katarzyna J. Purzycka
David J. Garfinkel的其他文献
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{{ truncateString('David J. Garfinkel', 18)}}的其他基金
Antisense RNAs control retrotransposon copy number
反义 RNA 控制逆转录转座子拷贝数
- 批准号:
8325679 - 财政年份:2011
- 资助金额:
$ 44.25万 - 项目类别:
Antisense RNAs control retrotransposon copy number
反义 RNA 控制逆转录转座子拷贝数
- 批准号:
8686002 - 财政年份:2011
- 资助金额:
$ 44.25万 - 项目类别:
Antisense RNAs control retrotransposon copy number
反义 RNA 控制逆转录转座子拷贝数
- 批准号:
8184610 - 财政年份:2011
- 资助金额:
$ 44.25万 - 项目类别:
Antisense RNAs control retrotransposon copy number
反义 RNA 控制逆转录转座子拷贝数
- 批准号:
8496829 - 财政年份:2011
- 资助金额:
$ 44.25万 - 项目类别:
Ty Element Retrotransposition in Saccharomyces cerevisia
酿酒酵母中的 Ty 元件逆转录转座
- 批准号:
6951650 - 财政年份:
- 资助金额:
$ 44.25万 - 项目类别:
Ty Element Retrotransposition in Saccharomyces cerevisia
酿酒酵母中的 Ty 元件逆转录转座
- 批准号:
7338477 - 财政年份:
- 资助金额:
$ 44.25万 - 项目类别:
Ty Element Retrotransposition in Saccharomyces cerevisiae
酿酒酵母中的 Ty 元件逆转录转座
- 批准号:
7965270 - 财政年份:
- 资助金额:
$ 44.25万 - 项目类别:
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