Condensed genome structure.

Condensed genome structure.
复制标题

DOI:
10.1007/978-1-4614-0980-9_21
复制
发表时间:
2012
影响因子:
--
通讯作者:
Thomas, Julie A.
Thomas, Julie A.
中科院分区:
医学4区
文献类型:
--
作者:
Black, Lindsay W.;Thomas, Julie A.

文献摘要

参考文献

被引文献

相似文献

包含dsDNA的大的尾部噬菌体基因组被包装成保守的高密度(~500 mg/ml),通常在~2.5 nm的双链到双链的、间隔的、有组织的二十面体衣壳内的DNA壳中。然而,具有这些凝集特性的噬菌体在其内部衣壳结构上有显著的不同:(1)具有裸露的浓缩DNA的噬菌体,(2)具有许多分散的非结构蛋白嵌入DNA的噬菌体,(3)具有少量定位蛋白的噬菌体,以及(4)具有大量减少的或不含DNA的内部蛋白结构的噬菌体。DNA被一个高强度的ATPase马达转移并浓缩成一个已经含有蛋白质的原衣壳,这些蛋白质将与DNA一起被喷射到受感染的宿主中。单噬菌体类型的浓缩基因组结构不太可能被精确确定,并且可以在不损失功能的情况下改变以适应改变的衣壳大小或内部结构。虽然目前还不知道这种单噬菌体浓缩的基因组结构,但已知单一的一般结构不太可能适用于所有这样的噬菌体。
Large, tailed dsDNA-containing bacteriophage genomes are packaged to a conserved and high density (~500 mg/ml), generally in ~2.5-nm, duplex-to-duplex, spaced, organized DNA shells within icosahedral capsids. Phages with these condensate properties, however, differ markedly in their inner capsid structures: (1) those with a naked condensed DNA, (2) those with many dispersed unstructured proteins embedded within the DNA, (3) those with a small number of localized proteins, and (4) those with a reduced or DNA-free internal protein structure of substantial volume. The DNA is translocated and condensed by a high-force ATPase motor into a procapsid already containing the proteins that are to be ejected together with the DNA into the infected host. The condensed genome structure of a single-phage type is unlikely to be precisely determined and can change without loss of function to fit an altered capsid size or internal structure. Although no such single-phage condensed genome structure is known exactly, it is known that a single general structure is unlikely to apply to all such phages.
DOI: 10.1016/j.jmb.2009.06.035
发表时间: 2009-08-14
影响因子: 5.6
作者:
Duda, Robert L.;Ross, Philip D.;Steven, Alasdair C.
通讯作者: Steven, Alasdair C.
DOI: 10.1016/j.virol.2009.12.002
发表时间: 2010-03-15
期刊: VIROLOGY
影响因子: 3.7
作者:
Chang, Chung-Yu;Kemp, Priscilla;Molineux, Ian J.
通讯作者: Molineux, Ian J.
DOI: 10.1016/j.virol.2007.07.035
发表时间: 2008-02-20
期刊: VIROLOGY
影响因子: 3.7
作者:
Comolli, Luis R.;Spakowitz, Andrew J.;Downing, Kenneth H.
通讯作者: Downing, Kenneth H.
DOI: 10.1016/j.jmb.2006.06.081
发表时间: 2006-09-01
影响因子: 5.6
作者:
Effantin, G.;Boulanger, P.;Conway, J. F.
通讯作者: Conway, J. F.
DOI: 10.1073/pnas.032095099
发表时间: 2002-04-16
影响因子: 11.1
作者:
Arsuaga, J;Vázquez, M;Roca, J
通讯作者: Roca, J