We conducted genome sequence analysis to examine the presence/absence of two types of Z-DNA binding domains in various organisms. We examined 68 organisms from archaea, 914 organisms from bacteria, and 199 organisms f...We conducted genome sequence analysis to examine the presence/absence of two types of Z-DNA binding domains in various organisms. We examined 68 organisms from archaea, 914 organisms from bacteria, and 199 organisms from eukaryotes. RecA protein from Escherichia coli has a Z-DNA binding domain and this protein promotes homologous recombination. All the organisms examined had this domain. This result indicated that this domain is essential for all the organisms. RNA editing enzyme, adenosine deaminase from human has another type of Z-DNA binding domain. This domain was observed in some organisms of archaea, bacteria, and eukaryotes. The presence/absence of Z-DNA binding domain in adenosine deaminase indicated that gain and loss of this domain had occurred in the process of evolution. The implication of presence and absence of this domain is discussed in this study.展开更多
Panther&Thornburg的场境理论认为间接言语行为理解中存在转喻思维,Ruiz de Mendoza&Diez提出"What’s X doing Y?"存在双转喻。本文集中讨论间接言语行为中转喻的多域操作问题,认为Ruiz de Mendoza所讨论的矩阵域是...Panther&Thornburg的场境理论认为间接言语行为理解中存在转喻思维,Ruiz de Mendoza&Diez提出"What’s X doing Y?"存在双转喻。本文集中讨论间接言语行为中转喻的多域操作问题,认为Ruiz de Mendoza所讨论的矩阵域是一种多域操作的情况,还有其它两种形式的多域操作,即多个源域一个目的域和一个源域多个目的域。本文分析的独特之处不仅在于对间接言语行为的转喻操作作更为深入的研究,还在于将转喻操作过程中,认知背景、现时语境和个人语用因素的影响作用也考虑其中。展开更多
文摘We conducted genome sequence analysis to examine the presence/absence of two types of Z-DNA binding domains in various organisms. We examined 68 organisms from archaea, 914 organisms from bacteria, and 199 organisms from eukaryotes. RecA protein from Escherichia coli has a Z-DNA binding domain and this protein promotes homologous recombination. All the organisms examined had this domain. This result indicated that this domain is essential for all the organisms. RNA editing enzyme, adenosine deaminase from human has another type of Z-DNA binding domain. This domain was observed in some organisms of archaea, bacteria, and eukaryotes. The presence/absence of Z-DNA binding domain in adenosine deaminase indicated that gain and loss of this domain had occurred in the process of evolution. The implication of presence and absence of this domain is discussed in this study.
文摘Panther&Thornburg的场境理论认为间接言语行为理解中存在转喻思维,Ruiz de Mendoza&Diez提出"What’s X doing Y?"存在双转喻。本文集中讨论间接言语行为中转喻的多域操作问题,认为Ruiz de Mendoza所讨论的矩阵域是一种多域操作的情况,还有其它两种形式的多域操作,即多个源域一个目的域和一个源域多个目的域。本文分析的独特之处不仅在于对间接言语行为的转喻操作作更为深入的研究,还在于将转喻操作过程中,认知背景、现时语境和个人语用因素的影响作用也考虑其中。
