Enhanced photolysis of nucleic acid monomers by pyrophosphate in the simulated primitive soup

	Enhanced photolysis of nucleic acid monomers by pyrophosphate in the simulated primitive soup
	Wang KJ(王孔江); Chai ZF(柴之芳); Wang, KJ; Chai, ZF; Pan, XM
刊名	ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE
	1999
卷号	29 期号:3 页码:#REF!
通讯作者	Wang, KJ (reprint author), Chinese Acad Sci, Inst High Energy Phys, POb 2732, Beijing 100080, Peoples R China.
英文摘要	In our simulation of the photochemistry of the primitive soup, it was found that yield of chromophore loss of some nucleic acid bases, nucleosides and nucleotides [NA] undergoing ultraviolet radiation by medium pressure mercury lamp [MPML] was enhanced by pyrophosphate and triphosphate whether O-2 is present or not. The yield of chromophore loss of guanosine, uracil, 5' CMP, and the derivatives of adenine and thymine was observed to rise with the increase of molar concentration of pyrophosphate in N-2-saturated systems. In air-saturated samples, increase in yield of chromophore loss was observed when the concentration of pyrophosphate reaches 5x10(-4) M, relative yield of chromophore loss (CLrel) coming to maximum in the range from 0.01 to 0.1 M, followed by a slight decline with the further increase of pyrophosphate concentration. The enhancement of photolysis of NA by pyrophosphate was due to the interaction between NA and pyrophosphate radicals photoionized by UV quanta of wavelength less than about 210 nm in the emission spectrum of a MPML. The relevance of this phenomenon to the origin of life has been discussed as well.
学科主题	Life Sciences & Biomedicine - Other Topics
类目[WOS]	Biology
收录类别	SCI
WOS记录号	WOS:000080709700003
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227259]
专题	高能物理研究所_院士
推荐引用方式 GB/T 7714	Wang KJ,Chai ZF,Wang, KJ,et al. Enhanced photolysis of nucleic acid monomers by pyrophosphate in the simulated primitive soup[J]. ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE,1999,29(3):#REF!.
APA	王孔江,柴之芳,Wang, KJ,Chai, ZF,&Pan, XM.(1999).Enhanced photolysis of nucleic acid monomers by pyrophosphate in the simulated primitive soup.ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE,29(3),#REF!.
MLA	王孔江,et al."Enhanced photolysis of nucleic acid monomers by pyrophosphate in the simulated primitive soup".ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE 29.3(1999):#REF!.