Identifying molecules as biosignatures with assembly theory and mass spectrometry.
Identifying molecules as biosignatures with assembly theory and mass spectrometry.
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DOI:
10.1038/s41467-021-23258-x
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发表时间:
2021-05-24
影响因子:
16.6
通讯作者:
Cronin L
中科院分区:
文献类型:
--
作者:
Marshall SM;Mathis C;Carrick E;Keenan G;Cooper GJT;Graham H;Craven M;Gromski PS;Moore DG;Walker SI;Cronin L
The search for alien life is hard because we do not know what signatures are unique to life. We show why complex molecules found in high abundance are universal biosignatures and demonstrate the first intrinsic experimentally tractable measure of molecular complexity, called the molecular assembly index (MA). To do this we calculate the complexity of several million molecules and validate that their complexity can be experimentally determined by mass spectrometry. This approach allows us to identify molecular biosignatures from a set of diverse samples from around the world, outer space, and the laboratory, demonstrating it is possible to build a life detection experiment based on MA that could be deployed to extraterrestrial locations, and used as a complexity scale to quantify constraints needed to direct prebiotically plausible processes in the laboratory. Such an approach is vital for finding life elsewhere in the universe or creating de-novo life in the lab. The search for life in the universe is difficult due to issues with defining signatures of living systems. Here, the authors present an approach based on the molecular assembly number and tandem mass spectrometry that allows identification of molecules produced by biological systems, and use it to identify biosignatures from a range of samples, including ones from outer space.
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DOI:
10.1098/rsta.2016.0342
发表时间:
2017-12-28
期刊:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
影响因子:
--
作者:
Marshall SM;Murray ARG;Cronin L
通讯作者:
Cronin L
DOI:
10.1073/pnas.0605863103
发表时间:
2006-08-29
影响因子:
11.1
作者:
Breslow, Ronald;Levine, Mindy S.
通讯作者:
Levine, Mindy S.
影响因子:
4.2
作者:
Schwieterman EW;Kiang NY;Parenteau MN;Harman CE;DasSarma S;Fisher TM;Arney GN;Hartnett HE;Reinhard CT;Olson SL;Meadows VS;Cockell CS;Walker SI;Grenfell JL;Hegde S;Rugheimer S;Hu R;Lyons TW
通讯作者:
Lyons TW
影响因子:
4.2
作者:
Gentry DM;Amador ES;Cable ML;Chaudry N;Cullen T;Jacobsen MB;Murukesan G;Schwieterman EW;Stevens AH;Stockton A;Tan G;Yin C;Cullen DC;Geppert W
通讯作者:
Geppert W
影响因子:
1.5
作者:
Mariscal, Carlos;Doolittle, W. Ford
通讯作者:
Doolittle, W. Ford