Thymine Adsorption onto Cation Exchanged Montmorillonite Clay: Role of Biogenic Divalent Metal Cations in Prebiotic Processes of Chemical Evolution [0.03%]
阳离子交换蒙脱石黏土对胸腺嘧啶的吸附作用：生物二价金属阳离子在化学进化中的前生命过程中的作用
Satish Chandra Sati,Chandra Kala Pant,Preeti Bhatt et al.
Satish Chandra Sati et al.
The adsorption of thymine, a key pyrimidine base of deoxyribonucleic acid (DNA) on montmorillonite clay (Mnt) exchanged with metal ions (Mnt-M2+, M2+ = Fe2+, Co2+, Cu2+, Ca2+, and Mg2+) over a range of concentration (7.0 × 10-5 M to 12.0 ...
Mathematical Models of Chiral Symmetry-breaking - A Review of General Theories, and Adiabatic Approximations of the APED System [0.03%]
手性对称性破缺的数学模型 - 一般理论综述及APED系统的绝热近似
Priscila C Diniz,Jonathan A D Wattis,Fernando P da Costa
Priscila C Diniz
We review the literature surrounding chiral symmetry-breaking in chemical systems, with a focus on understanding the mathematical models underlying these chemical processes. We comment in particular on the toy model of Sandars, Viedma's cry...
Konstantin K Konstantinov,Alisa F Konstantinova
Konstantin K Konstantinov
We study a very simple linear evolutionary model based on distribution of protocells by total enantiomeric excess and without any mutual inhibition and show that such model can produce two species with values of total enantiomeric excess in...
Evaluating Mineral Lattices as Evolutionary Proxies for Metalloprotein Evolution [0.03%]
评价矿物质晶格作为金属蛋白进化代理的作用
Kenneth N McGuinness,Gunnar W Klau,Shaunna M Morrison et al.
Kenneth N McGuinness et al.
Protein coordinated iron-sulfur clusters drive electron flow within metabolic pathways for organisms throughout the tree of life. It is not known how iron-sulfur clusters were first incorporated into proteins. Structural analogies to iron-s...
Axel Brandenburg,David Hochberg
Axel Brandenburg
Juan A Martínez Giménez,Rafael Tabares Seisdedos
Juan A Martínez Giménez
The origin of the genetic code is probably the central problem of the studies on the origin of life. The key question to answer is the molecular mechanism that allows the association of the amino acids with their triplet codons. We proposed...
Symmetry Breaking by Consecutive Amplification: Efficient Paths to Homochirality [0.03%]
连续放大导致的对称性破缺：实现手性的高效途径
Laura Huber,Oliver Trapp
Laura Huber
To understand chiral symmetry breaking on the molecular level, we developed a method to efficiently investigate reaction kinetics of single molecules. The model systems include autocatalysis as well as a reaction cascade to gain further ins...
Marcelo Gleiser
Marcelo Gleiser
Most amino acids and sugar molecules occur in mirror, or chiral, images of each other, knowns as enantiomers. However, life on Earth is mostly homochiral: proteins contain almost exclusively L-amino acids, while only D-sugars appear in RNA ...
Asymmetric Autocatalysis as an Efficient Link Between the Origin of Homochirality and Highly Enantioenriched Compounds [0.03%]
手性分子的非对称自动催化作用是起源同手性和高对映体富集化合物的有效联系纽带
Kenso Soai,Tsuneomi Kawasaki,Arimasa Matsumoto
Kenso Soai
Biological homochirality of essential components such as L-amino acids and D-sugars is prerequisite for the emergence, evolution and the maintenance of life. Implication of biological homochirality is described. Considerable interest has be...
Ulrich F Müller,Jamie Elsila,Dustin Trail et al.
Ulrich F Müller et al.
The Prebiotic Chemistry and Early Earth Environments (PCE3) Consortium is a community of researchers seeking to understand the origins of life on Earth and in the universe. PCE3 is one of five Research Coordination Networks (RCNs) within NA...