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characterization of meiotic arrest in mei5 mutants of yeast (sp011, pachytene). [microform]
characterization of meiotic arrest in mei5 mutants of yeast (sp011, pachytene). - [microfo...
characterization of meiotic arrest in mei5 mutants of yeast (sp011, pachytene). [microform]

상세정보

자료유형  
 마이크로피시
청구기호  
574 M691c
    저자명  
    서명/저자  
    characterization of meiotic arrest in mei5 mutants of yeast (sp011, pachytene). - [microform]
    발행사항  
    U.S. : wayne state university , 1996.
      형태사항  
      212 p. : microfiches ; 11×15 cm.
      총서명  
      UMI Dissertation
      주기사항  
      Source: Dissertation Abstracts International, Volume: 57-12, Section: B, page: 7371.
      학위논문주기  
      thesis (ph.d.)-- - wayne state university, 1996.
      초록/해제  
      요약The MEI5 gene of Saccharomyces cerevisiae is meiosis-specific and is expressed during mid/late meiotic Prophase I. A mei5$\Delta$ null mutant strain tightly arrests at the pachytene stage in meiosis. mei5$\Delta$ mutant cells arrest with highly condensed and paired homologs. Wild type appearing synaptonemal complexes are assembled and the spindle pole bodies are duplicated but unseparated during meiotic arrest of the mei5$\Delta$ mutant strain. The mei5$\Delta$ arrest is alleviated by a spo11$\Delta$ mutation and is not rescued by a spo13-1 mutation, suggesting that a MEI5 function is required after SPO11 and before SPO13 activity.
      초록/해제  
      요약The kinetics and level of induction of non-reciprocal recombination events are modestly reduced or unaffected after induction of meiosis and return to vegetative growth of mei5$\Delta$ mutant cells. In contrast, mei5$\Delta$ mutant cells exhibit severely reduced levels of reciprocal recombination in these experiments.
      초록/해제  
      요약During meiosis of a mei5$\Delta$ mutant strain, DNA double-strength breaks are formed on schedule, similar to that observed in a wild type strain but they persist. Heteroduplex DNA recombination intermediates are formed during meiotic Prophase I in a mei5$\Delta$ mutant strain but mature reciprocal recombination products are not detected. The RAD51 gene, when present on a high-copy number plasmid, partially suppresses the mei5$\Delta$ mutant phenotype.
      초록/해제  
      요약The MEI5 gene product is immuno-localized to synapsed bivalents with a punctate staining pattern, as visualized with anti-Mei5 antisera.
      복제주기  
      Microfiche : UMI . microfiches;11×15 cm.
      일반주제명  
      일반주제명  
      일반주제명  
      키워드  
      기타저자  
      기본자료저록  
      Dissertation Abstracts International. 57-12B.

      MARC

       008970923s1996        us                                    eng
      ■001MOKWON00234691
      ■001AAV9715884
      ■00519981005134723
      ■008970923s1996        us                                    eng    
      ■035    ▼a(UnM)AAV9715884
      ■040    ▼aUnM▼cUnM▼dMOKWON
      ■090    ▼a574▼bM691c
      ■1001  ▼amodesti,  mauro.
      ■24510▼acharacterization  of  meiotic  arrest  in  mei5  mutants  of  yeast  (sp011,  pachytene).▼h[microform]
      ■260    ▼aU.S.▼bwayne  state  university▼c1996.
      ■300    ▼a212  p.▼bmicrofiches▼c11×15  cm.
      ■350    ▼a$50.6
      ■44000▼aUMI  Dissertation
      ■500    ▼aSource:  Dissertation  Abstracts  International,  Volume:  57-12,  Section:  B,  page:  7371.
      ■502    ▼athesis  (ph.d.)--▼bwayne  state  university▼d1996.
      ■520    ▼aThe  MEI5  gene  of  Saccharomyces  cerevisiae  is  meiosis-specific  and  is  expressed  during  mid/late  meiotic  Prophase  I.    A  mei5$\Delta$  null  mutant  strain  tightly  arrests  at  the  pachytene  stage  in  meiosis.    mei5$\Delta$  mutant  cells  arrest  with  highly  condensed  and  paired  homologs.    Wild  type  appearing  synaptonemal  complexes  are  assembled  and  the  spindle  pole  bodies  are  duplicated  but  unseparated  during  meiotic  arrest  of  the  mei5$\Delta$  mutant  strain.    The  mei5$\Delta$  arrest  is  alleviated  by  a  spo11$\Delta$  mutation  and  is  not  rescued  by  a  spo13-1  mutation,  suggesting  that  a  MEI5  function  is  required  after  SPO11  and  before  SPO13  activity.
      ■520    ▼aThe  kinetics  and  level  of  induction  of  non-reciprocal  recombination  events  are  modestly  reduced  or  unaffected  after  induction  of  meiosis  and  return  to  vegetative  growth  of  mei5$\Delta$  mutant  cells.    In  contrast,  mei5$\Delta$  mutant  cells  exhibit  severely  reduced  levels  of  reciprocal  recombination  in  these  experiments.
      ■520    ▼aDuring  meiosis  of  a  mei5$\Delta$  mutant  strain,  DNA  double-strength  breaks  are  formed  on  schedule,  similar  to  that  observed  in  a  wild  type  strain  but  they  persist.    Heteroduplex  DNA  recombination  intermediates  are  formed  during  meiotic  Prophase  I  in  a  mei5$\Delta$  mutant  strain  but  mature  reciprocal  recombination  products  are  not  detected.    The  RAD51  gene,  when  present  on  a  high-copy  number  plasmid,  partially  suppresses  the  mei5$\Delta$  mutant  phenotype.
      ■520    ▼aThe  MEI5  gene  product  is  immuno-localized  to  synapsed  bivalents  with  a  punctate  staining  pattern,  as  visualized  with  anti-Mei5  antisera.
      ■533    ▼aMicrofiche▼cUMI▼emicrofiches;11×15  cm.
      ■590    ▼aSchool  code:  0254.
      ■650  4▼aBiology,  Molecular
      ■650  4▼aBiology,  Cell
      ■650  4▼aBiology,  Microbiology
      ■653    ▼acharacterization▼aof▼ameiotic▼aarrest▼ain▼amei5▼amutants▼aof▼ayeast▼a(sp011▼apachytene).
      ■690    ▼a0307
      ■690    ▼a0379
      ■690    ▼a0410
      ■71020▼awayne  state  university.
      ■7730  ▼tDissertation  Abstracts  International▼g57-12B.
      ■790    ▼a0254
      ■791    ▼aPH.D.
      ■792    ▼a1996

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