On the Origin of Sugar Handedness: Facts, Hypotheses and Missing Links-A Review [0.03%]
糖手性的起源：事实、假说和缺失环节-综述文章
R Fernando Martínez,Louis A Cuccia,Cristóbal Viedma et al.
R Fernando Martínez et al.
By paraphrasing one of Kipling's most amazing short stories (How the Leopard Got His Spots), this article could be entitled "How Sugars Became Homochiral". Obviously, we have no answer to this still unsolved mystery, and this perspective si...
Competitive interaction of Mn(II) and Fe(II) cations with the high-affinity Mn-binding site of the photosystem II: evolutionary aspect [0.03%]
锰(II)和铁(II)离子在光系统II高亲和力的结合位点的竞争性相互作用：进化观点
E R Lovyagina,B К Semin
E R Lovyagina
The evolutionary origin of the oxygen-evolving complex (OEC) in the photosystem II (PSII) is still unclear, as is the nature of electron source for the photosystem before the OEC had appeared. Johnson et al. (in PNAS 110:11238, 2013) specul...
Spontaneous Emergence of Transient Chirality in Closed, Reversible Frank-like Deterministic Models [0.03%]
封闭的弗兰克型决定论模型中 chirality 的涌现及其消失
Thomas Buhse,Jean-Claude Micheau
Thomas Buhse
To explore abiotic theories related to the origin of biomolecular homochirality, we analyze two entirely reversible kinetic models composed of an enantioselective autocatalysis with limited stereoselectivity that is coupled to an enantiomer...
Srdja Janković,Ana Katić,Milan M Ćirković
Srdja Janković
Now that we know that Earth-like planets are ubiquitous in the universe, as well as that most of them are much older than the Earth, it is justified to ask to what extent evolutionary outcomes on other such planets are similar, or indeed co...
Dmitry V Zlenko,Anatoly M Zanin,Sergey V Stovbun
Dmitry V Zlenko
The origin and reason for the homochirality of living cells go with the problem of a relatively narrow spectrum of the actual biological monomers compared to the whole theoretically possible spectrum of amino acids or carbohydrates. A limit...
The Effect of Goethites on the Polymerization of Glycine and Alanine Under Prebiotic Chemistry Conditions [0.03%]
铁氧化物对生命前化学条件下甘氨酸和丙氨酸聚合的影响
João Paulo T Baú,Cristine E A Carneiro,Antônio Carlos S da Costa et al.
João Paulo T Baú et al.
After pre concentration of monomers, polymerization is the second most important step for molecular evolution. The formation of peptides is an important issue for prebiotic chemistry and consequently for the origin of life. In this work, go...
Carolina Diaz Arenas,Aleksandra Ardaševa,Jonathan Miller et al.
Carolina Diaz Arenas et al.
Primeval populations replicating at high error rates required a mechanism to overcome the accumulation of mutations and information deterioration. Known strategies to overcome mutation pressures include RNA processivity, epistasis, selectio...
Stefano Crespi,Dhanalakshmi Vadivel,Alfredo Bellisario et al.
Stefano Crespi et al.
The secular debate on the origin of life on our planet represents one of the open challenges for the scientific community. In this endeavour, chemistry has a pivotal role in disclosing novel scenarios that allow us to understand how the for...
Piotr H Pawłowski
Piotr H Pawłowski
A statistical analysis of the variation in contents with the size of the current known smallest genomes, N. deltocephalinicola, C. ruddii, N. equitans, and M. genitalium, enabled the indication of a minimal set of codons capable of naturall...
Does Stochasticity Favour Complexity in a Prebiotic Peptide-Micelle System? [0.03%]
随机性会在前生物肽-胶束系统中增加复杂性吗？
Rowena Ball,John Brindley
Rowena Ball
A primordial environment that hosted complex pre- or proto-biochemical activity would have been subject to random fluctuations. A relevant question is then: What might be the optimum variance of such fluctuations, such that net progress cou...