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Molecules, Volume 24, Issue 19

October-1 2019 - 216 articles

Cover Story: RNAs are receiving increasing recognition for their new roles in biology, or as new drug targets and nanomaterials. Yet, their biophysical characterization continues to lag behind those of proteins. In particular, NMR spectroscopy remains a versatile tool for probing RNA structure and dynamics. Yet, NMR suffers from chemical shift overlap and line broadening, both of which become worse in large RNAs. Incorporating stable isotope labels into RNA—especially via solid-phase chemical synthesis using phosphoramidites—completely circumvents the spectral overlap problem. Here, we highlight the practical aspects of this methodology for RNA analysis, and showcase how labeled phosphoramidites enable collaborative efforts toward tackling integrative structural dynamics problems in RNA biology. View this paper.
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Articles (216)

  • Article
  • Open Access
25 Citations
5,656 Views
17 Pages

8 October 2019

Berberis vulgaris is rich in berberine, an isoquinoline alkaloid, with antidiabetic activity, often used topically for skin-related problems. The aim of this work was to develop a “green” method for berberine extraction using mixtures of...

  • Article
  • Open Access
1 Citations
2,757 Views
15 Pages

Matrix Discriminant Analysis Evidenced Surface-Lithium as an Important Factor to Increase the Hydrolytic Saccharification of Sugarcane Bagasse

  • Ana Sílvia de Almeida Scarcella,
  • Alexandre Favarin Somera,
  • Christiane da Costa Carreira Nunes,
  • Eleni Gomes,
  • Ana Claudia Vici,
  • Marcos Silveira Buckeridge and
  • Maria de Lourdes Teixeira de Moraes Polizeli

8 October 2019

Statistical evidence pointing to the very soft change in the ionic composition on the surface of the sugar cane bagasse is crucial to improve yields of sugars by hydrolytic saccharification. Removal of Li+ by pretreatments exposing -OH sites was the...

  • Feature Paper
  • Article
  • Open Access
27 Citations
7,202 Views
19 Pages

The Power of LC-MS Based Multiomics: Exploring Adipogenic Differentiation of Human Mesenchymal Stem/Stromal Cells

  • Evelyn Rampler,
  • Dominik Egger,
  • Harald Schoeny,
  • Mate Rusz,
  • Maria Pires Pacheco,
  • Giada Marino,
  • Cornelia Kasper,
  • Thomas Naegele and
  • Gunda Koellensperger

8 October 2019

The molecular study of fat cell development in the human body is essential for our understanding of obesity and related diseases. Mesenchymal stem/stromal cells (MSC) are the ideal source to study fat formation as they are the progenitors of adipocyt...

  • Review
  • Open Access
9 Citations
5,467 Views
21 Pages

A Review on the Reactivity of 1-Amino-2-Nitroguanidine (ANQ)

  • Jinghua Wang,
  • Meng Cai,
  • Fengqi Zhao and
  • Kangzhen Xu

8 October 2019

1-Amino-2-nitroguanidine (ANQ) is a high-energy nitrogen-rich compound with good detonation properties and low sensitivities. ANQ has only a central carbon atom with three small groups around it, including an amino, a hydrazine and a nitroxyl group....

  • Feature Paper
  • Article
  • Open Access
63 Citations
6,066 Views
16 Pages

Ultrasound and Microwave Assisted Extraction of Opuntia Fruit Peels Biocompounds: Optimization and Comparison Using RSM-CCD

  • Bruno Melgar,
  • Maria Inês Dias,
  • Lillian Barros,
  • Isabel C.F.R. Ferreira,
  • Antonio D. Rodriguez-Lopez and
  • Esperanza M. Garcia-Castello

8 October 2019

Ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) of bioactive compounds, peels from Opuntia engelmannii cultivar (cv.) Valencia were optimized by response surface methodology. Randomized extraction runs were performed for...

  • Feature Paper
  • Article
  • Open Access
7 Citations
3,493 Views
12 Pages

Co-Localization of DNA i-Motif-Forming Sequences and 5-Hydroxymethyl-cytosines in Human Embryonic Stem Cells

  • Yogini P. Bhavsar-Jog,
  • Eric Van Dornshuld,
  • Tracy A. Brooks,
  • Gregory S. Tschumper and
  • Randy M. Wadkins

8 October 2019

G-quadruplexes (G4s) and i-motifs (iMs) are tetraplex DNA structures. Sequences capable of forming G4/iMs are abundant near the transcription start sites (TSS) of several genes. G4/iMs affect gene expression in vitro. Depending on the gene, the prese...

  • Article
  • Open Access
22 Citations
7,347 Views
12 Pages

Expanding the Reaction Space of Linkage-Specific Sialic Acid Derivatization

  • Tamas Pongracz,
  • Manfred Wuhrer and
  • Noortje de Haan

8 October 2019

The human glycome is characterized by a high degree of sialylation, affecting, amongst others, cell–cell interactions and protein half-life. An established method for the linkage isomer-specific characterization of N-glycan sialylation is based...

  • Article
  • Open Access
16 Citations
4,399 Views
17 Pages

Anti-Platelet Properties of Phenolic Extracts from the Leaves and Twigs of Elaeagnus rhamnoides (L.) A. Nelson

  • Bartosz Skalski,
  • Bogdan Kontek,
  • Agata Rolnik,
  • Beata Olas,
  • Anna Stochmal and
  • Jerzy Żuchowski

8 October 2019

Sea buckthorn (Elaeagnus rhamnoides (L.) A. Nelson) is a small tree or bush. It belongs to the Elaeagnaceae family, and has been used for many years in traditional medicine in both Europe and Asia. However, there is no data on the effect of sea buckt...

  • Article
  • Open Access
6 Citations
3,672 Views
12 Pages

8 October 2019

Doxorubicin (DOX) is an effective anti-tumor drug widely used in clinics. Hernandezine (HER), isolated from a Chinese medicinal herb, has a selective inhibitory effect on DOX multidrug resistance, making DOX more effective in treating cancer. The aim...

  • Article
  • Open Access
10 Citations
3,672 Views
16 Pages

8 October 2019

Quality assessment of Cortex Periplocae remains a challenge, due to its complex chemical profile. This study aims to investigate the chemical components of Cortex Periplocae, including its non-volatile and volatile constituents, via liquid chromatogr...

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Molecules - ISSN 1420-3049