Chirality as a physical aspect of structure formation in biological macromolecular systems

Malyshko, E. V.; Твердислов, В. А.

doi:10.1088/1742-6596/741/1/012065

Cited by 10 publications

(20 citation statements)

References 8 publications

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“…It should be noted that the role of symmetry and asymmetry [21][22][23], which are manifested here, in particular in such an important property as chirality [2,24,25] of the original molecules, plays here a key role in the physical laws and processes at various levels of the organization of these structures [26][27][28][29][30][31]. Moreover, this is generally characteristic of the whole self-organization of matter and complex molecular systems [1,2,[21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…Modern advances in molecular biology and biophysics have already allowed a sufficiently detailed description of the structures and functions of almost all the major biomacromolecules at different levels of their hierarchy and structural organization [24][25][26][27][28][29][30][31]. A huge number of chiral molecules, such as amino acids, sugars, etc., exist in nature and play a crucial role in the living organisms [2].…”

Section: Introductionmentioning

confidence: 99%

“…A huge number of chiral molecules, such as amino acids, sugars, etc., exist in nature and play a crucial role in the living organisms [2]. At the same time, self-organizing macromolecules tend to form hierarchical structures with alternating signs of chirality upon transition to a higher hierarchical level [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

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Chiral Peculiar Properties of Self-Organization of Diphenylalanine Peptide Nanotubes: Modeling Of Structure and Properties

Bystrov¹,

Zelenovskiy²,

Nuraeva³

et al. 2019

Math.Biol.Bioinf.

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The structure and properties of diphenylalanine peptide nanotubes based on phenylalanine were investigated by various molecular modeling methods. The main approaches were semi-empirical quantum-chemical methods (PM3 and AM1), and molecular mechanical ones. Both the model structures and the structures extracted from their experimental crystallographic databases obtained by X-ray methods were examined. A comparison of optimized model structures and structures obtained by naturally-occurring self-assembly showed their important differences depending on D- and L-chirality. In both the cases, the effect of chirality on the results of self-assembly of diphenylalanine peptide nanotubes was established: peptide nanotubes based on the D-diphenylalanine (D-FF) has high condensation energy E0 in transverse direction and forms thicker and shorter peptide nanotubes bundles, than that based on L-diphenylalanine (L-FF). A topological difference was established: model peptide nanotubes were optimized into structures consisting of rings, while naturally self-assembled peptide nanotubes consisted of helical coils. The latter were different for the original L-FF and D-FF. They formed helix structures in which the chirality sign changes as the level of the macromolecule hierarchy raises. Total energy of the optimal distances between two units are deeper for L-FF (–1.014 eV) then for D-FF (–0.607 eV) for ring models, while for helix coil are approximately the same and have for L-FF (–6.18 eV) and for D-FF (–6.22 eV) by PM3 method; for molecular mechanical methods energy changes are of the order of 2–3 eV for both the cases. A topological transition between a ring and a helix coil of peptide nanotube structures is discussed: self-assembled natural helix structures are more stable and favourable, they have lower energy in optimal configuration as compared with ring models by a value of the order of 1 eV for molecular mechanical methods and 5 eV for PM3 method.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chiral Peculiar Properties of Self-Organization of Diphenylalanine Peptide Nanotubes: Modeling Of Structure and Properties

Bystrov¹,

Zelenovskiy²,

Nuraeva³

et al. 2019

Math.Biol.Bioinf.

View full text Add to dashboard Cite

show abstract

“…teins, in turn, provides an opportunity for chiral biological macromolecular systems with higher hierarchical levels of symmetry and yet unknown functions [46,242,243]. The hierarchy in the chain of the chirality transfer, evident particularly from the current review, possesses several not trivial features.…”

Section: Our Hypothesismentioning

confidence: 89%

“…In a more particular sense, the biological evolution considered as the chain of chiral bifurcations [46].…”

Section: Biological Evolution As a Chain Of Chiral Bifurcationsmentioning

confidence: 99%

The Chain of Chirality Transfer as Determinant of Brain Functional Laterality. Breaking the Chirality Silence: Search for New Generation of Biomarkers; Relevance to Neurodegenerative Diseases, Cognitive Psychology, and Nutrition Science

Dyakin¹,

Lucas²,

Dyakina‐Fagnano³

et al. 2017

NNR

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Molecular modeling and computational study of the chiral-dependent structures and properties of self-assembling diphenylalanine peptide nanotubes

et al. 2019

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Chirality as a physical aspect of structure formation in biological macromolecular systems

Cited by 10 publications

References 8 publications

Chiral Peculiar Properties of Self-Organization of Diphenylalanine Peptide Nanotubes: Modeling Of Structure and Properties

Chiral Peculiar Properties of Self-Organization of Diphenylalanine Peptide Nanotubes: Modeling Of Structure and Properties

The Chain of Chirality Transfer as Determinant of Brain Functional Laterality. Breaking the Chirality Silence: Search for New Generation of Biomarkers; Relevance to Neurodegenerative Diseases, Cognitive Psychology, and Nutrition Science

Molecular modeling and computational study of the chiral-dependent structures and properties of self-assembling diphenylalanine peptide nanotubes

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