Article
Biochemistry & Molecular Biology
Michal Ostrowka, Anna Duda-Madej, Filip Pietluch, Pawel Mackiewicz, Przemyslaw Gagat
Summary: Lactoferrin, an iron-binding glycoprotein, has multiple functions including antimicrobial, antiviral, antifungal, anticancer, antioxidant, and immunomodulatory activities. This study generated three novel human lactoferrin fragments, which were predicted to have antimicrobial activity. However, none of the new fragments showed antimicrobial properties, except for hLF 1-11, which was lethal against Pseudomonas aeruginosa.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Wei Liu, Wenning Yang, Xueyan Li, Dongying Qi, Hongjiao Chen, Huining Liu, Shuang Yu, Guopeng Wang, Yang Liu
Summary: This study comprehensively evaluated the properties of fish skin gelatin hydrolysates prepared using different proteases and identified the cleavage site of ginger protease. The results provide support for the commercial applications of ginger protease and the bioactivities of its hydrolysates.
Article
Chemistry, Medicinal
Patrick Gonschorek, Alessandro Zorzi, Tamara Maric, Mathilde Le Jeune, Mischa Schuettel, Mathilde Montagnon, Rebeca Gomez-Ojea, Denis Patrick Vollmar, Chantal Whitfield, Luc Reymond, Vanessa Carle, Hitesh Verma, Oliver Schilling, Alain Hovnanian, Christian Heinis
Summary: In this study, selective and high-affinity inhibitors of KLK5 and KLK7 were identified using phage display. The stability and half-life of the inhibitors were improved by eliminating proteaseprone sites and conjugating them to an albumin-binding peptide. These inhibitors were shown to reach the target KLKs in mouse epidermis and have the potential to control deregulated protease activity in Netherton syndrome.
JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Review
Food Science & Technology
Maria Elisa Caetano-Silva, Flavia Maria Netto, Maria Teresa Bertoldo-Pacheco, Amparo Alegria, Antonio Cilla
Summary: Bioactive peptides derived from food proteins have various bioactivities, including metal-binding capacity. Mineral chelating peptides have the potential to reduce mineral deficiencies and pro-oxidant effects of Fe.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2021)
Article
Biochemistry & Molecular Biology
James P. Tam, Jiayi Huang, Shining Loo, Yimeng Li, Antony Kam
Summary: Coffee processing waste contains novel microproteins with cell-penetrating and metal ion-binding abilities, including a ginsentide-like microprotein that can target intracellular proteins. These findings suggest that coffee by-products could be a potential source of bioactive peptides for targeting intracellular proteins.
Article
Chemistry, Applied
Liangliang Song, Gerardo M. Ojeda-Carralero, Divyaakshar Parmar, David A. Gonzalez-Martinez, Luc Van Meervelt, Johan Van Der Eycken, Jan Goeman, Daniel G. Rivera, Erik V. Van der Eycken
Summary: This report presents a ruthenium-catalyzed C-H activation/annulation process that can selectively modify the peptide backbone to produce functionalized isoquinolone scaffolds with high regioselectivity in a rapid and step-economical manner. The method allows for the production of fluorescent peptides, peptide conjugates with drugs, natural products, and other peptide fragments, providing a chemical approach for constructing novel peptide-pharmacophore conjugates.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Multidisciplinary Sciences
Ryunosuke Hayashi, Shohei Tashiro, Masahiro Asakura, Shinya Mitsui, Mitsuhiko Shionoya
Summary: The structure of porous molecular crystals can be controlled allosterically by the adsorption of effectors within low-symmetry nanochannels with multiple molecular recognition sites, leading to diverse framework structure conversion and switchable molecular affinity at different recognition sites. These findings may provide guidance for the development of supramolecular materials with flexible and highly-ordered three-dimensional structures for biological applications.
NATURE COMMUNICATIONS
(2023)
Review
Biochemistry & Molecular Biology
Anastasiia I. Petushkova, Lyudmila V. Savvateeva, Andrey A. Zamyatnin
Summary: Papain-like cysteine proteases are widely expressed enzymes that regulate protein turnover in lysosomes. Recent discoveries have shown that these proteases also have specific functions in different organelles and extracellular environments. Human cysteine cathepsins are the most studied proteases in this family and are involved in both physiological and pathological processes. The specificity of each protease to its substrates is determined by the structure of the binding cleft and the amino acid motifs in this region.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2022)
Review
Chemistry, Applied
Tolulope Joshua Ashaolu, Chi Ching Lee, Joseph Opeolu Ashaolu, Hadi Pourjafar, Seid Mahdi Jafari
Summary: Minerals play important roles in human nutrition by participating in metabolic activities. Micronutrients need to be consumed adequately through diet to maintain the health of body tissues. Metal-binding peptides (MBPs) have been identified as potential agents for mineral supplements, but further research is needed to understand how MBPs affect the biological functions of minerals. This review discusses the production of MBPs, their mechanisms as functional food ingredients, and the characteristics and application of different metal-peptide complexes.
Article
Biochemistry & Molecular Biology
Joanna Watly, Adriana Miller, Henryk Kozlowski, Magdalena Rowinska-Zyrek
Summary: The involvement of metal ions in interacting with therapeutic peptides can fine-tune the biological properties of antimicrobial peptides. The use of proteolytically stable peptidomimetics, such as D-, beta-, gamma-amino acids, unnatural amino acids, azapeptides, peptoids, cyclopeptides, and dehydropeptides, provides an infinite reservoir of metal binding motifs for metabolically stable, well-designed, biologically active molecules. This approach offers potential solutions to the problematic metabolic stability of therapeutic peptides.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Paige E. Pistono, Paul Huang, Daniel D. Brauer, Matthew B. Francis
Summary: Protein-based nanoparticles, specifically virus-like particles (VLPs), have shown potential as effective drug delivery platforms. This study successfully engineered VLPs with positively charged surface residues to improve their uptake into mammalian cells. These engineered VLPs exhibited high internalization efficiency through interactions with cell surface sulfated proteoglycans, while maintaining biophysical similarity to wild-type VLPs and low cytotoxicity. Furthermore, the engineered VLPs performed comparably to antibody-drug conjugates in delivering an anticancer therapeutic. These findings highlight the importance of fitness landscape-based engineering in designing VLPs for improved cell penetration and suggest the potential of VLPs with positive surface charge in enhancing the delivery of small-molecule and nucleic acid-based therapeutics.
ACS CHEMICAL BIOLOGY
(2022)
Article
Chemistry, Organic
Disha Harsukhbhai Tank, Narendra Dinkar Kharat, Kiran Bajaj, Siva S. Panda, Rajeev Sakhuja
Summary: In this study, regioselective functionalization of protected tryptophans was achieved by catalytic reaction, leading to the synthesis of a series of quinone-appended unnatural amino acids. Furthermore, the late stage functionalization of tryptophan-containing dipeptides was also explored.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nikita Y. Shmelev, Tesfu H. Okubazghi, Pavel A. Abramov, Mariana Rakhmanova, Alexander S. Novikov, Maxim N. Sokolov, Artem L. Gushchin
Summary: A series of new cationic complexes were synthesized and their structures were determined. All complexes exhibit solid-state photoluminescence with long excited state lifetimes. These results are important for understanding the properties and applications of coordination compounds.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Biochemistry & Molecular Biology
Yeonje Cho, Armin Mirzapour-Kouhdasht, Hyosuk Yun, Jeong Hoon Park, Hye Jung Min, Chul Won Lee
Summary: Radioactive isotopes conjugated with chelates have applications in the medical field. In this study, the wAlb12 peptide was designed and synthesized to develop a peptide-based chelate for binding to cobalt. The binding properties of wAlb12 to cobalt were confirmed, and the important binding regions were identified as His3 and the alpha-amino group of the N-terminal region. The wAlb12-Cobalt complex showed improved stability and low cytotoxicity, making it a potential candidate for use as a chelate with radioactive isotopes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Food Science & Technology
Rui Wang, Jianmin Yun, Shujuan Wu, Yang Bi, Fengyun Zhao
Summary: Food-derived hypotensive peptides have gained attention in active peptide research. This study optimized the process of preparing ACE inhibitor peptides through double-enzyme hydrolysis based on ACE inhibition rate. LC-MS/MS analysis detected novel peptides with ACE inhibitory activity and molecular docking revealed their binding to ACE. The study suggests the potential of these peptides for developing novel ACE inhibitor drugs and provides a new approach for the high-value utilization of mushroom scraps.
Article
Chemistry, Multidisciplinary
Janine G. Morton, Candice L. Joe, Massiel C. Stolla, Sophia R. Koshland, Casey H. Londergan, Mark H. Schofield
JOURNAL OF CHEMICAL EDUCATION
(2015)
Article
Chemistry, Multidisciplinary
J. August Ridenour, Mark H. Schofield, Christopher L. Cahill
CRYSTAL GROWTH & DESIGN
(2020)
Article
Chemistry, Inorganic & Nuclear
Dominique M. Brager, Aaron D. Nicholas, Mark H. Schofield, Christopher L. Cahill
Summary: The synthesis and characterization of six new heterometallic UO22+/Pb2+ compounds with rare M-oxo interactions were reported. The spectral effects of these interactions were measured using luminescence and Raman spectroscopy. Computational methods indicated that the interactions are mainly through charge transfer between cationic units, with energy values varying depending on the distance and angle of interaction. Strong interactions with Pb-oxo were found to weaken U=O bonds and led to luminescence quenching and red-shifting of the uranyl Raman stretch.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Robert G. Surbella, Lucas C. Ducati, Mark H. Schofield, Bruce K. McNamara, Kristi L. Pellegrini, Jordan F. Corbey, Jon M. Schwantes, Jochen Autschbach, Christopher L. Cahill
Summary: We report the synthesis and characterization of five new hybrid materials containing the [PuCl6](2-) anion and 4-Xpyridinium (X = H, Cl, Br, I) cations. The structures of the compounds were determined using X-ray diffraction, and their noncovalent interactions were analyzed computationally. The strength of the hydrogen and halogen bonds was quantified, and the Pu-Cl bonds were found to exhibit varying degrees of covalent character.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Nicole M. Byrne, Mark H. Schofield, Christopher L. Cahill
Summary: In this study, a novel pyrazine-bridged uranyl dimer was synthesized and its electronic structure and potential charge-transfer characteristics were investigated through computational and experimental analysis. The results showed the presence of a delocalized pi-system and a decreased basicity of the uranyl oxo, indicating a lessened capacity for supramolecular assembly.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Nicole M. Byrne, Mark H. Schofield, Aaron D. Nicholas, Christopher L. Cahill
Summary: This study reports the synthesis and characterization of a family of UO22+/Co2+ isothiocyanate materials, investigating the assembly differences between homometallic and heterometallic phases, and identifying the atypical blue shift of the uranyl symmetric stretch.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Korey P. Carter, Mark Kalaj, Sapphire McNeil, Andrew Kerridge, Mark H. Schofield, J. August Ridenour, Christopher L. Cahill
Summary: This study explores accessing the nominally terminal oxo atoms of the linear uranyl cation through coordination with Ag+ cations or iodobenzoates, resulting in the synthesis of four new heterometallic compounds. The spectroscopic analysis reveals red-shifted vibrational and luminescence spectra, indicating weakening of the U=O bond due to halogen-oxo and cation-cation interactions. Further computational analysis highlights the quantitative difference between halogen bonds and cation-cation interactions, showing a significant decrease in uranyl bond orders and electron density at bond critical points in the latter case.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
J. Hodge Markgraf, Lu Hong, David P. Richardson, Mark H. Schofield
MAGNETIC RESONANCE IN CHEMISTRY
(2007)
Article
Chemistry, Multidisciplinary
Mark H. Schofield, Marie-Adele Sorel, Ryan J. Manalansan, David P. Richardson, J. Hodge Markgraf
MAGNETIC RESONANCE IN CHEMISTRY
(2006)
Article
Chemistry, Inorganic & Nuclear
MH Schofield, J Halpern
INORGANICA CHIMICA ACTA
(2003)
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.