کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9469862 | 1319069 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Random biochemical networks: the probability of self-sustaining autocatalysis
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Random biochemical networks: the probability of self-sustaining autocatalysis Random biochemical networks: the probability of self-sustaining autocatalysis](/preview/png/9469862.png)
چکیده انگلیسی
We determine conditions under which a random biochemical system is likely to contain a subsystem that is both autocatalytic and able to survive on some ambient 'food' source. Such systems have previously been investigated for their relevance to origin-of-life models. In this paper we extend earlier work, by finding precisely the order of catalysation required for the emergence of such self-sustaining autocatalytic networks. This answers questions raised in earlier papers, yet also allows for a more general class of models. We also show that a recently described polynomial-time algorithm for determining whether a catalytic reaction system contains an autocatalytic, self-sustaining subsystem is unlikely to adapt to allow inhibitory catalysation-in this case we show that the associated decision problem is NP-complete.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Theoretical Biology - Volume 233, Issue 3, 7 April 2005, Pages 327-336
Journal: Journal of Theoretical Biology - Volume 233, Issue 3, 7 April 2005, Pages 327-336
نویسندگان
Elchanan Mossel, Mike Steel,