Results 131 to 140 of about 414,309 (352)

Heme as a Target for Therapeutic Interventions

Frontiers in Pharmacology, 2017
Heme is a complex of iron and the tetrapyrrole protoporphyrin IX with essential functions in aerobic organisms. Heme is the prosthetic group of hemoproteins such as hemoglobin and myoglobin, which are crucial for reversible oxygen binding and transport ...
S. Immenschuh, Vijith Vijayan, S. Janciauskiene, F. Gueler   +3 more
semanticscholar   +1 more source

Fe/N‐Doped Carbon with Nearly Ordered Mesopores and Tunable Particle Sizes as Model Catalysts for Quantitative Evaluation of Electrocatalytic Active Sites

Advanced Science, EarlyView.
This study is dedicated to the design and synthesis of MOF‐derived mesoporous Fe/N‐doped carbons as model catalysts, aiming to quantitatively evaluate the utilization of active sites in the ORR. Through modulation followed by pyrolysis, we successfully prepare size‐tunable Fe/MNC‐x with doped iron atoms and mesoporous structures. The smaller Fe/MNC‐250
Hongjuan Zhang, Yunqi Li, Jiacheng Zhao, Yue Liu, Xingtao Xu, Yusuke Yamauchi, Jing Tang, Min Zhou   +7 more
wiley   +1 more source

Improvement of experimental testing and network training conditions with genome-wide microarrays for more accurate predictions of drug gene targets [PDF]

, 2014
BACKGROUND: Genome-wide microarrays have been useful for predicting chemical-genetic interactions at the gene level. However, interpreting genome-wide microarray results can be overwhelming due to the vast output of gene expression data combined with off-
Christadore, Lisa M., Kolaczyk, Eric D., Pham, Lisa, Schaus, Scott E.   +3 more
core   +1 more source

PPE Surface Proteins Are Required for Heme Utilization by Mycobacterium tuberculosis

mBio, 2017
Iron is essential for replication of Mycobacterium tuberculosis, but iron is efficiently sequestered in the human host during infection. Heme constitutes the largest iron reservoir in the human body and is utilized by many bacterial pathogens as an iron ...
Avishek Mitra, A. Speer, Kan Lin, S. Ehrt, M. Niederweis   +4 more
semanticscholar   +1 more source

Synergistic Tuning of Conformational Dynamics, Electron Tunneling, and Substrate Positioning Enhances Electron Transfer in a P450 Chimera for Calcifediol Biosynthesis

Advanced Science, EarlyView.
A synergistic electron transfer (ET) optimization strategy modulating conformational dynamics, ET pathway, and substrate orientation is proposed for self‐sufficient cytochrome P450s. Guided by this strategy, a P450 variant with improved ET and catalytic efficiency was identified, and the underlying molecular basis was revealed by computational analysis.
Ziqi Liang, Xitong Song, Shuming Cheng, Yiwen Shen, Jie Zhang, Yaru Wang, Huiying Luo, Bin Yao, Binju Wang, Tao Tu   +9 more
wiley   +1 more source

Characterization of Shewanella oneidensis MtrC: a cell-surface decaheme cytochrome involved in respiratory electron transport to extracellular electron acceptors [PDF]

, 2007
MtrC is a decaheme c-type cytochrome associated with the outer cell membrane of Fe(III)-respiring species of the Shewanella genus. It is proposed to play a role in anaerobic respiration by mediating electron transfer to extracellular mineral oxides that ...
AI Tsapin, AJ Bard, AS Beliaev, AS Beliaev, BH Kim, Brian N. Jepson, C Myers, C Myers, C Schwalb, CR Myers, CR Myers, CR Myers, CR Myers, D Leys, David J. Richardson, DJ Richardson, E Berry, EHJ Gordon, FA Walker, GR Moore, HJ Kim, I Gautier-Luneau, J Hirst, JF Heidelberg, Jim Fredrickson, JK Fredrickson, JM Myers, JM Myers, JM Philo, John Zachara, Julea N. Butt, K Venkateswaren, KE Pitts, KH Nealson, KH Nealson, Kurnikov, L Shi, L Shi, Liang Shi, LJ Anderson, MG Almeida, MP Hendrich, MP Hendrich, PL Dutton, PS Dobbin, R Aasa, Robert S. Hartshorne, Sarah J. Field, SJ Field, T Horan, TA Clarke, Tom A. Clarke, VA Bamford   +52 more
core   +1 more source

Monofunctional Heme-Catalases

Antioxidants, 2022
The review focuses on four issues that are critical for the understanding of monofunctional catalases. How hydrogen peroxide (H2O2) reaches the active site and outcompetes water molecules to be able to function at a very high rate is one of the issues examined.
openaire   +3 more sources

Heme accumulation in endothelial cells impairs angiogenesis by triggering paraptosis

Cell Death and Differentiation, 2017
Heme is required for cell respiration and survival. Nevertheless, its intracellular levels need to be finely regulated to avoid heme excess, which may catalyze the production of reactive oxygen species (ROS) and promote cell death.
S. Petrillo, D. Chiabrando, T. Genova, V. Fiorito, G. Ingoglia, F. Vinchi, F. Mussano, S. Carossa, L. Silengo, F. Altruda, G. Merlo, L. Munaron, E. Tolosano   +12 more
semanticscholar   +1 more source

A Metal‐Free Carbon Monoxide Prodrug Suppresses Metastasis of Pancreatic and Breast Cancer

Advanced Science, EarlyView.
A metal‐free carbon monoxide (CO) prodrug, CO‐116, delivers controlled systemic CO without inhalation. CO suppresses the HRG1–heme axis, reducing intracellular heme availability. Attenuation of this pathway inhibits metastatic progression in pancreatic and triple‐negative breast cancer models.
Tiantian Zhang, Xiang Chen, Xiaoxiao Yang, Muskan Gori, Rohit Kumar Varshnaya, Dongning Liu, Cheryl Zhang, Michelle Yi Qin Chen, Zhengming Chen, George Zhang, Erika Patel, Qiyue Mao, Tan A. Ince, Chalet Tan, Binghe Wang, Yi‐Chieh Nancy Du   +15 more
wiley   +1 more source

Proximal and distal control for ligand binding in neuroglobin: role of the CD loop and evidence for His64 gating [PDF]

, 2019
Neuroglobin (Ngb) is predominantly expressed in neurons of the central and peripheral nervous systems and it clearly seems to be involved in neuroprotection.
Anselmi, Massimiliano, Cerutti, Gabriele, Exertier, Cécile, Freda, Ida, Milazzo, Lisa, Montemiglio, Linda Celeste, Parisi, Giacomo, Savino, Carmelinda, Scaglione, Antonella, Smulevich, Giulietta, Vallone, Beatrice   +10 more
core   +4 more sources