Article
Cell Biology
Jia Shi, Yi Yang, Ya-Nan Wang, Qing Li, Xue Xing, An-Ying Cheng, Xiao-Na Zhan, Jie Li, Gang Xu, Fan He
Summary: This study reveals the association between metabolism and the progression of vascular calcification in chronic kidney disease (CKD). High phosphate and uremic serum enhance mitochondrial respiration capacity in vascular smooth muscle cells (VSMCs), while glycolysis level remains unchanged. Suppression of cytochrome c oxidase (COX) activity attenuates vascular calcification.
CELL DEATH & DISEASE
(2022)
Article
Multidisciplinary Sciences
Gizem Inak, Agnieszka Rybak-Wolf, Pawel Lisowski, Tancredi M. Pentimalli, Rene Juettner, Petar Glazar, Karan Uppal, Emanuela Bottani, Dario Brunetti, Christopher Secker, Annika Zink, David Meierhofer, Marie-Therese Henke, Monishita Dey, Ummi Ciptasari, Barbara Mlody, Tobias Hahn, Maria Berruezo-Llacuna, Nikos Karaiskos, Michela Di Virgilio, Johannes A. Mayr, Saskia B. Wortmann, Josef Priller, Michael Gotthardt, Dean P. Jones, Ertan Mayatepek, Werner Stenzel, Sebastian Diecke, Ralf Kuehn, Erich E. Wanker, Nikolaus Rajewsky, Markus Schuelke, Alessandro Prigione
Summary: Leigh syndrome (LS) is a severe neurometabolic disorder lacking effective models. This study found that LS carrying mutations in SURF1 gene exhibit impaired neuronal morphogenesis due to metabolic deficiencies.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Luke E. Formosa, Shadi Maghool, Alice J. Sharpe, Boris Reljic, Linden Muellner-Wong, David A. Stroud, Michael T. Ryan, Megan J. Maher
Summary: COA7 is a crucial assembly factor for the biogenesis of mitochondrial complex IV. It interacts with SCO1 and SCO2 to catalyze copper relay and reduction of disulfide bonds, which are important for complex IV assembly.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Physical
Wei Zhang, Jin-kong Pan, Yi-fan Yu, Xian-jie Zhang, Jia-hao Wang, Wen-xian Chen, Gui-lin Zhuang
Summary: By using spin-polarization density functional theory (DFT) calculations, the correlation between the spin states and catalytic performance of metal-nitrogen graphene single-atom catalysts (SACs) was systematically investigated. It was found that Co-N-4-C (S=1/2) exhibited excellent 2e(-) oxygen reduction performance with an ultralow overpotential of 0.03 V. The spin magnetic moment was identified as the key factor in regulating the ORR property.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Biochemistry & Molecular Biology
Sven Dennerlein, Peter Rehling, Ricarda Richter-Dennerlein
Summary: Mitochondria are responsible for producing the majority of ATP through their oxidative phosphorylation machinery. The complex IV, cytochrome c oxidase, is the terminal enzyme of the mitochondrial respiratory chain and transfers electrons to oxygen to generate water. Assembly of complex IV requires coordination between two gene expression machinery due to their dual genetic origin. Recent research has increased our understanding of proteins involved in mitochondrial gene expression and their role in complex IV assembly.
Article
Multidisciplinary Sciences
Michael B. Powner, Glen Jeffery
Summary: Systemic glucose levels can be modulated through specific solar wavelengths that affect mitochondrial metabolism. Different wavelengths of light have opposing effects on mitochondrial respiration, with longer wavelengths increasing ATP production and shorter wavelengths suppressing metabolism. This study in a bumblebee model found that manipulating mitochondrial activity with specific wavelengths of light significantly altered circulating glucose concentration. This research contributes to our understanding of how light can affect systemic metabolism.
Article
Biochemistry & Molecular Biology
Cat McCann, Michael Quinteros, Ifeoluwa Adelugba, Marcos N. Morgada, Aida R. Castelblanco, Emily J. Davis, Antonio Lanzirotti, Sarah J. Hainer, Alejandro J. Vila, Juan G. Navea, Teresita Padilla-Benavides
Summary: This study reveals the important role of mitochondrial phosphate transporter PiC2 in copper transport and delivery to mitochondria, promoting the differentiation of primary myoblasts.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2022)
Article
Cell Biology
Sue Ellen Brand, Martha Scharlau, Lois Geren, Marissa Hendrix, Clayre Parson, Tyler Elmendorf, Earl Neel, Kaila Pianalto, Jennifer Silva-Nash, Bill Durham, Francis Millett
Summary: Cytochrome c (Cc) has undergone accelerated evolution from anthropoid primates to humans, with several amino acid changes occurring near the binding site of the Cc:CcO complex. These changes affect the dissociation constant and the role of phosphorylation in regulating mitochondrial electron transport and membrane potential.
Article
Chemistry, Multidisciplinary
Niamh M. Mockler, Kiefer O. Ramberg, Francesca Guagnini, Colin L. Raston, Peter B. Crowley
Summary: A new extended arm calixarene with increased protein masking capacity was discovered, forming a hydrogen-bonded stacking structure. The four hydrophobic grooves of this receptor bind to proteins through a new recognition mode, suggesting new possibilities in supramolecular protein chemistry.
CRYSTAL GROWTH & DESIGN
(2021)
Review
Biochemistry & Molecular Biology
Erika Fernandez-Vizarra, Cristina Ugalde
Summary: The lack of a consistent framework to explain the assembly of the mitochondrial respiratory chain complexes and supercomplexes has hindered progress in the field. The plasticity model, which proposes that the complexes can exist as individual entities or be associated in supercomplexes, is being questioned. Instead, a cooperative assembly model is argued to provide a better explanation for the observed phenomena in MRC biogenesis.
TRENDS IN BIOCHEMICAL SCIENCES
(2022)
Article
Biochemical Research Methods
Vinicius A. Paiva, Murillo Mendonca, Sabrina A. Silveira, David B. Ascher, Douglas E. Pires, Sandro C. Izidoro
Summary: This study presents a new method, Genetic Active Site Search (GASS)-Metal, for predicting metal-binding sites in proteins. The method uses a parallel genetic algorithm to find candidate metal-binding sites similar to curated templates, and has been thoroughly validated with satisfactory performance.
BRIEFINGS IN BIOINFORMATICS
(2022)
Review
Chemistry, Multidisciplinary
Peter B. Crowley
Summary: This Account summarizes the progress in protein-calixarene complexation, tracing the developments from binary recognition to framework construction. Various methods, such as cocrystallization, NMR spectroscopy, and isothermal titration calorimetry, were used to study the multi-site binding and assembly of calixarenes with proteins. Calixarenes can also bind exogenous components and form frameworks with different levels of porosity.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Infectious Diseases
Abdulmalik Abdullahi Salman, J. P. Dean Goldring
Summary: The study found that the malaria parasite expresses PfCox11 protein, which shares similar structural features and copper binding motifs with Cox11 from other species. PfCox11 is capable of binding copper and is predicted to transfer copper to the cytochrome c oxidase of the malaria parasite.
Article
Chemistry, Multidisciplinary
Jesus Cases Diaz, Monica Gimenez-Marques
Summary: Alternative synthetic procedures enable the formation of protein@HKUST-1 biocomposites, overcoming the challenge of mineralization in water for hydrolytically unstable MOFs.
CHEMICAL COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Agnes Moe, Justin Di Trani, John L. Rubinstein, Peter Brzezinski
Summary: Energy conversion in aerobic organisms involves electron transfer from low-potential donors to dioxygen through the membrane-bound respiratory chain. The formation of supercomplex CIII2CIV1/2 facilitates electron transfer by two-dimensional diffusion of cyt. c, increasing QH(2):O-2 oxidoreductase activity and suggesting a regulatory role for supercomplex formation in the respiratory chain.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biochemistry & Molecular Biology
Trang Van Tran, Hoa Nguyen, Luyen Vu, ChangWoo Lee
Summary: Glutaredoxin 3 (Grx3) is a redox protein that maintains structural integrity and glutathione (GSH) binding capabilities across different temperatures. This study investigates the roles of specific bonds in Grx3's structure and function, and how psychrophilic Grx3 variants adapt to cold environments. The highly conserved Arg51-Asp69 salt bridge and Gln56-His63 hydrogen bond are crucial for stabilizing the structure and catalytic activity of Grx3. Psychrophilic variants of Grx3 have adapted to cold environments by reducing GSH binding and increasing structural flexibility.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Amanda Lais de Souza Coto, Arthur Alexandre Pereira, Sabrina Dorta Oliveira, Milene Nobrega de Oliveira Moritz, Arthur Moraes Franco da Rocha, Paulo Roberto Dores-Silva, Noeli Soares Melo da Silva, Ana Rita de Araujo Nogueira, Lisandra Marques Gava, Thiago Vagas Seraphim, Julio Cesar Borges
Summary: J-domain proteins form a large molecular chaperone family involved in proteostasis processes, with hDjC20 playing a vital role in mitochondria and being heavily influenced by the presence of Zn+2.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Meiling Zhang, Jiaxiang Zhang, Yan Liang, Shicheng Tian, Shuyang Xie, Tong Zhou, Qin Wang
Summary: This study determined the crystal structures of RGLG2 VWA domain in Arabidopsis thaliana, revealing that Ca2+ ions act as regulators and affect the conformational change of RGLG2-VWA domain.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Alexandra Bork, Sander H. J. Smits, Lutz Schmitt
Summary: This study reveals the structure and calcium ion binding properties of CBL1 protein, and proposes a binding model of CBL1 for Ca2+. Additionally, it provides preliminary insights into the formation of the dimer interface of CBL1.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Evgeniia V. Leisi, Andrey V. Moiseenko, Sofia S. Kudryavtseva, Denis V. Pozdyshev, Vladimir I. Muronetz, Lidia P. Kurochkina
Summary: The pathogenesis of prion diseases involves the transformation of prion protein into an insoluble form. This study found that two phage chaperonins can promote the fibrillation of prion protein in an ATP-dependent manner, resulting in the formation of less toxic large clusters. These fibrils differ in morphology and properties from those formed spontaneously in acidic pH with denaturants.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Gaurab Chowdhury, Saroj Biswas, Yuthika Dholey, Puja Panja, Sumit Das, Subrata Adak
Summary: Magnesium is an important divalent cation for regulating enzyme activity. The binding of Mg2+ through the PAS domain inhibits phosphoglycerate kinase (PGK) activity in LmPAS-PGK at neutral pH, but PGK activity is derepressed at acidic pH. Mutation studies revealed that the Asp-4 residue is crucial for Mg2+ binding at neutral pH.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Shima Ghaedizadeh, Majid Zeinali, Bahareh Dabirmanesh, Behnam Rasekh, Khosrow Khajeh, Ali Mohammad Banaei-Moghaddam
Summary: Implementing hyperthermostable carbonic anhydrases into CO2 capture and storage technologies can increase the rate of CO2 absorption from industrial flue gases. This study successfully improved the thermostability of a known hyperthermostable carbonic anhydrase through rational engineering of a single-point mutation.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)
Article
Biochemistry & Molecular Biology
Khaled A. Elnahriry, Dorothy C. C. Wai, Lauren M. Ashwood, Muhammad Umair Naseem, Tibor G. Szanto, Shaodong Guo, Gyorgy Panyi, Peter J. Prentis, Raymond S. Norton
Summary: Sea anemone venom contains a peptide called Tst2, which shows sequence similarity to peptides that interact with various ion channels. Recombinant Tst2 was successfully produced and its structure and function were studied. The results showed that Tst2 is an inhibitor of the TRPV1 channel.
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2024)