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Biomolecules, Volume 10, Issue 8

August 2020 - 114 articles

Cover Story: Zinc homeostasis is critical for bacterial survival and virulence. Extracellular zinc-binding proteins play an important role in this process. The ATP-binding cassette (ABC) transporter system AztABCD includes two periplasmic proteins, AztC and AztD. Both bind zinc with high affinity and specificity. Further, AztD can transfer zinc to AztC, which can then deliver the metal to the membrane permease (AztB) for import into the cell. These processes are highly specific and rely on conserved structural features of each protein. This work assesses the role of several flexible or unstructured sequences in zinc binding and transfer from AztD to AztC. The results provide insights into the dynamic nature of these processes and support a previously proposed structural model of transfer. View this paper.
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Articles (114)

  • Article
  • Open Access
10 Citations
4,985 Views
23 Pages

The Non-Fibrillating N-Terminal of α-Synuclein Binds and Co-Fibrillates with Heparin

  • Line K. Skaanning,
  • Angelo Santoro,
  • Thomas Skamris,
  • Jacob Hertz Martinsen,
  • Anna Maria D’Ursi,
  • Saskia Bucciarelli,
  • Bente Vestergaard,
  • Katrine Bugge,
  • Annette Eva Langkilde and
  • Birthe B. Kragelund

16 August 2020

The intrinsically disordered protein α-synuclein (aSN) is, in its fibrillated state, the main component of Lewy bodies—hallmarks of Parkinson’s disease. Additional Lewy body components include glycosaminoglycans, including heparan s...

  • Article
  • Open Access
22 Citations
4,792 Views
11 Pages

Naphthoquinone-Based Meroterpenoids from Marine-Derived Streptomyces sp. B9173

  • Xinqian Shen,
  • Xiaozheng Wang,
  • Tingting Huang,
  • Zixin Deng and
  • Shuangjun Lin

15 August 2020

Naphthoquinone-based meroterpenoids are hybrid polyketide-terpenoid natural products with chemical diversity and a broad range of biological activities. Here, we report the isolation of a group of naphthoquinone-containing compounds from Streptomyces...

  • Review
  • Open Access
11 Citations
5,732 Views
23 Pages

C. elegans Models to Study the Propagation of Prions and Prion-Like Proteins

  • Carl Alexander Sandhof,
  • Simon Oliver Hoppe,
  • Jessica Tittelmeier and
  • Carmen Nussbaum-Krammer

15 August 2020

A hallmark common to many age-related neurodegenerative diseases, such as Alzheimer’s disease (AD), Parkinson’s disease (PD), and amyotrophic lateral sclerosis (ALS), is that patients develop proteinaceous deposits in their central nervou...

  • Article
  • Open Access
13 Citations
5,055 Views
18 Pages

Free-Radical-Mediated Formation of Trans-Cardiolipin Isomers, Analytical Approaches for Lipidomics and Consequences of the Structural Organization of Membranes

  • Fabrizio Vetica,
  • Anna Sansone,
  • Cesare Meliota,
  • Gessica Batani,
  • Marinella Roberti,
  • Chryssostomos Chatgilialoglu and
  • Carla Ferreri

15 August 2020

Free-radical-mediated processes, such as peroxidation, isomerization and hydrogenation affecting fatty acid integrity and biological functions, have a trans-disciplinary relevance. Cardiolipins (CL, (1,3-diphosphatidyl-sn-glycerol)) and tetra-linoleo...

  • Article
  • Open Access
39 Citations
4,221 Views
13 Pages

Association between Circular RNA CDR1as and Post-Infarction Cardiac Function in Pig Ischemic Heart Failure: Influence of the Anti-Fibrotic Natural Compounds Bufalin and Lycorine

  • Julia Mester-Tonczar,
  • Johannes Winkler,
  • Patrick Einzinger,
  • Ena Hasimbegovic,
  • Nina Kastner,
  • Dominika Lukovic,
  • Katrin Zlabinger,
  • Andreas Spannbauer,
  • Denise Traxler and
  • Sandor Batkai
  • + 2 authors

14 August 2020

Anti-fibrotic therapies are of increasing interest to combat cardiac remodeling and heart failure progression. Recently, anti-fibrotic circular RNAs (circRNAs) have been identified in human and rodent cardiac tissue. In vivo (rodent) experiments prov...

  • Article
  • Open Access
10 Citations
4,617 Views
16 Pages

Rapid Ex-Vivo Ciliogenesis and Dose-Dependent Effect of Notch Inhibition on Ciliogenesis of Respiratory Epithelia

  • Maliha Zahid,
  • Timothy N. Feinstein,
  • Anthony Oro,
  • Molly Schwartz,
  • Alex D. Lee and
  • Cecilia W. Lo

14 August 2020

Background: Cilia are actin based cellular protrusions conserved from algae to complex multicellular organisms like Homo sapiens. Respiratory motile cilia line epithelial cells of the tracheobronchial tree, beat in a synchronous, metachronal wave, mo...

  • Article
  • Open Access
12 Citations
4,241 Views
11 Pages

A Transmembrane Histidine Kinase Functions as a pH Sensor

  • Ana Bortolotti,
  • Daniela Belén Vazquez,
  • Juan Cruz Almada,
  • Maria Eugenia Inda,
  • Salvador Iván Drusin,
  • Juan Manuel Villalba,
  • Diego M. Moreno,
  • Jean Marie Ruysschaert and
  • Larisa Estefania Cybulski

14 August 2020

The two-component system DesK-DesR regulates the synthesis of unsaturated fatty acids in the soil bacteria Bacillus subtilis. This system is activated at low temperature and maintains membrane lipid fluidity upon temperature variations. Here, we foun...

  • Feature Paper
  • Article
  • Open Access
25 Citations
5,956 Views
18 Pages

14 August 2020

Based on a biotechnological strategy, in the present work several peptones are produced from the Alcalase hydrolysis (0.1–0.2% v/w, 56–64 °C, pH 8.27–8.98, 3 h) and thermal processing (105 °C, 60 min) of wastes generated fro...

  • Article
  • Open Access
62 Citations
12,082 Views
18 Pages

Synthesis and Characterization of Oxidized Polysaccharides for In Situ Forming Hydrogels

  • Muhammad Muhammad,
  • Christian Willems,
  • Julio Rodríguez-Fernández,
  • Gloria Gallego-Ferrer and
  • Thomas Groth

14 August 2020

Polysaccharides are widely used as building blocks of scaffolds and hydrogels in tissue engineering, which may require their chemical modification to permit crosslinking. The goal of this study was to generate a library of oxidized alginate (oALG) an...

  • Article
  • Open Access
40 Citations
6,256 Views
13 Pages

14 August 2020

Multi-drug resistant Acinetobacter baumannii is well-known for its rapid acclimatization in hospital environments. The ability of the bacterium to endure desiccation and starvation on dry surfaces for up to a month results in outbreaks of health care...

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Biomolecules - ISSN 2218-273X