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  • Article
  • Open Access
8 Citations
4,043 Views
16 Pages

The Azurin Coding Gene: Origin and Phylogenetic Distribution

  • Leandro Gammuto,
  • Carolina Chiellini,
  • Marta Iozzo,
  • Renato Fani and
  • Giulio Petroni

Azurin is a bacterial-derived cupredoxin, which is mainly involved in electron transport reactions. Interest in azurin protein has risen in recent years due to its anticancer activity and its possible applications in anticancer therapies. Nevertheles...

(This article belongs to the Special Issue Microbial Genetics and Evolution)
  • Review
  • Open Access
6 Citations
3,089 Views
12 Pages

Azurin is a small blue copper protein that participates in redox reactions during anaerobic respiration in Pseudomonas aeruginosa, and there are a significant number of studies employing this model to investigate the electron transfer (ET) processes...

(This article belongs to the Special Issue Metalloproteins: How Metals Shape Protein Structure and Function)
  • Article
  • Open Access
17 Citations
4,639 Views
14 Pages

Raman spectroscopy, which is a suitable tool to elucidate the structural properties of intrinsically disordered proteins, was applied to investigate the changes in both the structure and the conformational heterogeneity of the DNA-binding domain (DBD...

(This article belongs to the Special Issue Functionally Relevant Macromolecular Interactions of Disordered Proteins 2019)
  • Communication
  • Open Access
150 Views
15 Pages

Strain-Dependent Effects of Azurin-Producing Probiotic Escherichia coli on HCT116 Colorectal Carcinoma Cells

  • Nairouz Deeb,
  • Georgy Otinov,
  • Alexey Tikhomirov,
  • Ellen Mouhammad,
  • Artemii Savin and
  • Elena Koshel

Probiotic bacteria are increasingly being explored as engineering platforms for local production of bioactive proteins, but the outcome may depend on both the recombinant protein and the bacterial strain. Azurin-producing derivatives of Escherichia c...

  • Article
  • Open Access
2 Citations
2,874 Views
25 Pages

The Production of Recombinant Azurin from Pseudomonas aeruginosa and Its Ability to Induce Apoptosis in Various Breast Cancer Cell Lines

  • Tomasz Kowalczyk,
  • Anna Merecz-Sadowska,
  • Ewelina Synowiec,
  • Tomasz Śliwiński,
  • Janusz Piekarski,
  • Janusz Szemraj,
  • Mattia Mori,
  • Patricia Rijo and
  • Przemysław Sitarek

Azurin is a copper-containing redox protein naturally produced by Pseudomonas aeruginosa, which has shown promising activity against human cancer cells by inducing apoptosis. The present study describes the design of a recombinant vector, pT7-MAT-Tag...

(This article belongs to the Special Issue Recombinant Proteins, Protein Folding and Drug Discovery)
  • Article
  • Open Access
17 Citations
5,867 Views
22 Pages

Tuning Structure and Dynamics of Blue Copper Azurin Junctions via Single Amino-Acid Mutations

  • Maria Ortega,
  • J. G. Vilhena,
  • Linda A. Zotti,
  • Ismael Díez-Pérez,
  • Juan Carlos Cuevas and
  • Rubén Pérez

15 October 2019

In the growing field of biomolecular electronics, blue-copper Azurin stands out as one of the most widely studied protein in single-molecule contacts. Interestingly, despite the paramount importance of the structure/dynamics of molecular contacts in...

(This article belongs to the Special Issue Biomolecular Electronics)
  • Article
  • Open Access
9 Citations
4,628 Views
12 Pages

The Role of Metal Ions in the Electron Transport through Azurin-Based Junctions

  • Carlos Romero-Muñiz,
  • María Ortega,
  • Jose Guilherme Vilhena,
  • Rubén Pérez,
  • Juan Carlos Cuevas and
  • Linda A. Zotti

21 April 2021

We studied the coherent electron transport through metal–protein–metal junctions based on a blue copper azurin, in which the copper ion was replaced by three different metal ions (Co, Ni and Zn). Our results show that neither the protein structure no...

(This article belongs to the Special Issue Molecular Electronics)
  • Article
  • Open Access
8 Citations
3,493 Views
16 Pages

Cold-Azurin, a New Antibiofilm Protein Produced by the Antarctic Marine Bacterium Pseudomonas sp. TAE6080

  • Caterina D’Angelo,
  • Marika Trecca,
  • Andrea Carpentieri,
  • Marco Artini,
  • Laura Selan,
  • Maria Luisa Tutino,
  • Rosanna Papa and
  • Ermenegilda Parrilli

25 January 2024

Biofilm is accountable for nosocomial infections and chronic illness, making it a serious economic and public health problem. Staphylococcus epidermidis, thanks to its ability to form biofilm and colonize biomaterials, represents the most frequent ca...

(This article belongs to the Section Marine Biotechnology Related to Drug Discovery or Production)
  • Article
  • Open Access
20 Citations
4,050 Views
16 Pages

Computational Modeling, High-Level Soluble Expression and In Vitro Cytotoxicity Assessment of Recombinant Pseudomonas aeruginosa Azurin: A Promising Anti-Cancer Therapeutic Candidate

  • Shakira Aslam,
  • Hafiz Muzzammel Rehman,
  • Muhammad Zeeshan Sarwar,
  • Ajaz Ahmad,
  • Nadeem Ahmed,
  • Muhammad Imran Amirzada,
  • Hafiz Muhammad Rehman,
  • Humaira Yasmin,
  • Tariq Nadeem and
  • Hamid Bashir

Azurin is a natural protein produced by Pseudomonas aeruginosa that exhibits potential anti-tumor, anti-HIV, and anti-parasitic properties. The current study aimed to investigate the potential of azurin protein against breast cancer using both in sil...

(This article belongs to the Special Issue Peptides and Peptide Mimetics: Potential Tools for Therapy)
  • Article
  • Open Access
5 Citations
5,174 Views
11 Pages

15 July 2017

In the present study, we propose a method for bio-nano hybrid formation by coupling a redox metalloprotein, Azurin, with CdSe-ZnS quantum dot for the development of a nanoscale resistive memory device. The covalent interaction between the two nanomat...

(This article belongs to the Section Biomaterials)
  • Article
  • Open Access
20 Citations
4,940 Views
12 Pages

Mechanical Deformation and Electronic Structure of a Blue Copper Azurin in a Solid-State Junction

  • Carlos Romero-Muñiz,
  • María Ortega,
  • J. G. Vilhena,
  • Ismael Diéz-Pérez,
  • Juan Carlos Cuevas,
  • Rubén Pérez and
  • Linda A. Zotti

19 September 2019

Protein-based electronics is an emerging field which has attracted considerable attention over the past decade. Here, we present a theoretical study of the formation and electronic structure of a metal-protein-metal junction based on the blue-copper...

(This article belongs to the Special Issue Biomolecular Electronics)
  • Article
  • Open Access
2 Citations
3,230 Views
12 Pages

22 January 2025

Long-range electron transfer (ET) is an essential component of all biological systems. Reactions of metalloproteins are important in this context. Recent work on protein “charge ladders” has revealed how the redox state of embedded metal...

(This article belongs to the Special Issue Exclusive Feature Papers in Inorganic Chemistry, 2nd Edition)
  • Article
  • Open Access
11 Citations
3,814 Views
14 Pages

Compared to chemical drugs, therapeutic proteins exhibit higher specificity and activity and are generally well-tolerated by the human body. However, the limitations, such as poor stability both in vivo and in vitro as well as difficulties in penetra...

(This article belongs to the Section Cellular and Molecular Bioengineering)
  • Article
  • Open Access
13 Citations
5,044 Views
14 Pages

The Azurin-Derived Peptide CT-p19LC Exhibits Membrane-Active Properties and Induces Cancer Cell Death

  • Ana Rita Garizo,
  • Lígia F. Coelho,
  • Sandra Pinto,
  • Tiago P. Dias,
  • Fábio Fernandes,
  • Nuno Bernardes and
  • Arsénio M. Fialho

10 September 2021

Peptides have been thoroughly studied as new therapeutic strategies for cancer treatment. In this work, we explored in vitro the anticancer potential of three novel peptides derived from the C-terminal of azurin, an anticancer bacterial protein produ...

(This article belongs to the Special Issue Recent Advances in the Discovery of Novel Drugs on Natural Molecules)
  • Article
  • Open Access
662 Views
20 Pages

Exploring the Role of Azurin from the Endophytic Bacterium Pseudomonas sp. OHS18 Through the Phenotypic Characterization of a Δazu Mutant

  • Giulia Semenzato,
  • Veronica Ghini,
  • Valentina Pecchioli,
  • Marta Iozzo,
  • Giorgia Molesini,
  • Francesco Imperi,
  • Alberto Bernacchi,
  • Giovanni Emiliani,
  • Giovanni Stefano and
  • Renato Fani
  • + 3 authors

Azurin is a promising antitumor agent that selectively enters cancer cells and inhibits tumor progression. It is also known to participate in cellular processes involving single-electron transfer, including protection against oxidative stress, anaero...

(This article belongs to the Section Molecular Microbiology and Immunology)
  • Review
  • Open Access
106 Citations
12,622 Views
19 Pages

4 December 2018

Cancer is a multi-process disease where different mechanisms exist in parallel to ensure cell survival and constant adaptation to the extracellular environment. To adapt rapidly, cancer cells re-arrange their plasma membranes to sustain proliferation...

(This article belongs to the Special Issue Receptor-Targeted Cancer Therapy)
  • Article
  • Open Access
4 Citations
3,392 Views
10 Pages

10 January 2024

Multi-step electron transfer reactions are important to the function of many cellular systems. The ways in which such systems have evolved to direct electrons along specific pathways are largely understood, but less so are the ways in which the reduc...

(This article belongs to the Section Inorganic Chemistry)
  • Review
  • Open Access
22 Citations
7,401 Views
18 Pages

20 November 2017

Surface Plasmon Resonance (SPR) is a powerful technique to study the kinetics of biomolecules undergoing biorecognition processes, particularly suited for protein-protein interactions of biomedical interest. The potentiality of SPR was exploited to s...

(This article belongs to the Special Issue Surface Plasmon Resonance Sensing)
  • Article
  • Open Access
1 Citations
2,338 Views
20 Pages

Floristic Composition and Species Conservation Status in Three Polylepis (Rosaceae) Relict Forests in Peru

  • Yakov Quinteros-Gómez,
  • Jehoshua Macedo-Bedoya,
  • Flavia Anlas-Rosado,
  • Sergio Yangua-Evangelista,
  • Franco Angeles-Alvarez,
  • Shirley Azurín-Sotelo,
  • Marcel La Rosa-Sánchez,
  • Doris Gómez-Ticerán,
  • Enoc Jara-Peña and
  • Iván Fernández-De la Cruz
  • + 2 authors

20 November 2025

This study assessed the floristic composition, endemism, and conservation status of three relict Polylepis forests (“queñua”) in Oyón, Peru, located between 4000 and 4500 m a.s.l. A total of 150 vascular plant species were r...

  • Article
  • Open Access
14 Citations
3,310 Views
13 Pages

Cu+/Ag+ Competition in Type I Copper Proteins (T1Cu)

  • Nikoleta Kircheva,
  • Silvia Angelova,
  • Stefan Dobrev,
  • Vladislava Petkova,
  • Valya Nikolova and
  • Todor Dudev

17 April 2023

Due to the similarity in the basic coordination behavior of their mono-charged cations, silver biochemistry is known to be linked to that of copper in biological systems. Still, Cu+/2+ is an essential micronutrient in many organisms, while no known b...

(This article belongs to the Collection Advances in Metal Binding Proteins)
  • Feature Paper
  • Review
  • Open Access
5 Citations
3,715 Views
19 Pages

14 December 2020

The tumor suppressor p53 protein plays a crucial role in many biological processes. The presence of abnormal concentrations of wild-type p53, or some of its mutants, can be indicative of a pathological cancer state. p53 represents therefore a valuabl...

(This article belongs to the Section Biosensors)
  • Review
  • Open Access
2,417 Views
13 Pages

23 September 2023

The two most common oxidation states of copper in biochemistry are Cu(II) and Cu(I), and while Cu(II) lends itself to spectroscopic interrogation, Cu(I) is silent in most techniques. Ag(I) and Cu(I) are both closed-shell d10 monovalent ions, and to s...

(This article belongs to the Special Issue Editorial Board Members’ Collection Series in “Bioinorganic Chemistry of Copper”)
  • Review
  • Open Access
184 Citations
18,881 Views
26 Pages

Anticancer Activity of Bacterial Proteins and Peptides

  • Tomasz M. Karpiński and
  • Artur Adamczak

Despite much progress in the diagnosis and treatment of cancer, tumour diseases constitute one of the main reasons of deaths worldwide. The side effects of chemotherapy and drug resistance of some cancer types belong to the significant current therap...

(This article belongs to the Special Issue Protein Therapeutics)
  • Article
  • Open Access
161 Views
21 Pages

Protein-based biosensors exploit the extraordinary selectivity of proteins toward specific ligands—such as other proteins, ions, and electromagnetic signals—often surpassing engineered recognition systems. Ligand binding induces structura...

(This article belongs to the Special Issue Nanomaterials in Chemosensors and Biosensors: Development and Application (2nd Edition))
  • Article
  • Open Access
13 Citations
4,619 Views
20 Pages

A Fungal Versatile GH10 Endoxylanase and Its Glycosynthase Variant: Synthesis of Xylooligosaccharides and Glycosides of Bioactive Phenolic Compounds

  • Ana Pozo-Rodríguez,
  • Juan A. Méndez-Líter,
  • Laura I. de Eugenio,
  • Manuel Nieto-Domínguez,
  • Eva Calviño,
  • Francisco Javier Cañada,
  • Andrés G. Santana,
  • Jaime Díez,
  • Juan L. Asensio and
  • María Jesús Martínez
  • + 2 authors

26 January 2022

The study of endoxylanases as catalysts to valorize hemicellulosic residues and to obtain glycosides with improved properties is a topic of great industrial interest. In this work, a GH10 β-1,4-endoxylanase (XynSOS), from the ascomycetous fungus...

(This article belongs to the Special Issue Biotechnological Application of Carbohydrate Active Enzymes)