Results 51 to 60 of about 27,628 (212)

Radical Mediated Rapid In Vitro Formation of c-Type Cytochrome

Biomolecules, 2022
A cytochrome c552 mutant from Thermus thermophilus HB8 (rC552 C14A) was reported, where the polypeptide with replaced Cys14 by alanine, overexpressed in the cytosol of E. coli.
Sheikh Muhammad Ibrahim, Sami Ben Aoun, Hiroshi Nakajima, Fethi Kooli, Yoshihito Watanabe   +4 more
doaj   +1 more source

Acute Hepatic Porphyrias: Review and Recent Progress. [PDF]

, 2019
The acute hepatic porphyrias (AHPs) are a group of four inherited diseases of heme biosynthesis that present with episodic, acute neurovisceral symptoms.
Andant, Anderson, Andersson, Badawy, Balwani, Bissell, Bissell, Bloomer, Bonkovsky, Bonkovsky, Bonkovsky, Bonkovsky, Bonkowsky, Bonkowsky, Bonkowsky, Bylesjo, Chen, D’Avola, Ferrer, Glueck, Handschin, Jeans, Lambrecht, Lane, Marsden, McGuire, Pallet, Sardh, Sardh, Shen, Singal, Stein, Stewart, Tchernitchko, Wahlin, Watson, Watson, Willandt, Wu, Yarra, Yasuda   +40 more
core   +1 more source

Electron-capture—Induced dissociation of protoporphyrin IX ions [PDF]

Journal of the American Society for Mass Spectrometry, 2008
Electron-capture induced dissociation of protoporphyrin cations and anions has been studied. The cations captured two electrons in two successive collisions and were converted to the corresponding even-electron anions. About one fifth of the ions lost a hydrogen atom to become radical anions but otherwise very little fragmentation was observed.
Bernigaud, Virgile, Drenck, K., Huber, B.A., Hvelplund, P., Jabot, T., Kadhane, U., Suhr Kirketerp, M.-B., Liu, Bo, Kocks Lykkegaard, M., Manil, Bruno, Brondsted Nielsen, S.   +10 more
openaire   +4 more sources

Organic Light‐Emitting Diode in Phototherapy Applications

Advanced Photonics Research, EarlyView.
This article systematically reviews the development of organic light‐emitting diodes (OLEDs) in phototherapy, constructs a technical framework, and establishes a multidimensional knowledge graph encompassing indications, wavelengths, and light intensity.
Yingguang Zhu, Yonglan Hu, Yingjie Cui, Lixue Guo, Guohui Zhang, Haixia Qiu, Defu Chen, Changyong Pan, Huijuan Yin, Suling Zhao   +9 more
wiley   +1 more source

Inactivation of Dengue and Yellow Fever viruses by heme, cobalt-protoporphyrin IX and tin-protoporphyrin IX [PDF]

Journal of Applied Microbiology, 2016
To investigate the effect of heme, cobalt-protoporphyrin IX and tin-protoporphyrin IX (CoPPIX and SnPPIX), macrocyclic structures composed by a tetrapyrrole ring with a central metallic ion, on Dengue Virus (DENV) and Yellow Fever Virus (YFV) infection.Treatment of HepG2 cells with heme, CoPPIX and SnPPIX after DENV infection reduced infectious ...
I, Assunção-Miranda, C, Cruz-Oliveira, R L S, Neris, C M, Figueiredo, L P S, Pereira, D, Rodrigues, D F F, Araujo, A T, Da Poian, M T, Bozza   +8 more
openaire   +2 more sources

ERM Inhibition Confers Ferroptosis Resistance through ROS‐Induced NRF2 Signaling

Advanced Science, EarlyView.
ERM inhibition disrupts ERM‐actin interactions, elevating ROS and triggering KEAP1 degradation, which stabilizes and activates NRF2. Nuclear NRF2 induces cytoprotective genes, notably HMOX1, enhancing redox buffering and suppressing lipid peroxidation to resist erastin‐induced ferroptosis.
Menghao Qiao, Liqun Zhou, Minhua Zhou, Yu Fang, Haiying Mai, Lingbo Cao, Kun Xu, Yuan Sang, Minyi Chen, Jiewei Huang, Peiyi Huang, Zhipeng Yan, Chao Wang, Zhangshuai Dai, Dichun Huang, Ronghan He, Lijuan Pang, Yunmiao Guo, Ting Gang Chew, Junqi Huang   +19 more
wiley   +1 more source

Transcriptional regulation of tetrapyrrole biosynthetic genes explains abscisic acid-induced heme accumulation in the unicellular red alga Cyanidioschyzon merolae

Frontiers in Plant Science, 2016
Abscisic acid (ABA), a pivotal phytohormone that is synthesized in response to abiotic stresses and other environmental changes, induces various physiological responses. Heme, in its unbound form, has a positive signaling role in cell-cycle initiation in
Yuki Kobayashi, Kan Tanaka, Kan Tanaka
doaj   +1 more source

The importance of iron chelation and iron availability during PpIX-induced photodynamic therapy [PDF]

, 2015
This is the accepted version of the article. Please cite the published version which is available via the DOI link in this record.Background: Protoporphyrin IX (PpIX)-induced photodynamic therapy (PDT) is being utilised as a topical method of localised ...
Curnow, Alison, Pye, Andrew
core   +1 more source

Catalytic Amyloids: Turning Fibrils Into Biocatalysts

Chemistry – A European Journal, EarlyView.
Amyloids, traditionally associated with diseases, have emerged as versatile catalytic scaffolds. From natural amyloid sequences to bioinspired and de novo designs, we highlight strategies to construct catalytic active sites and anchor enzymes onto fibrils, creating versatile nanomaterials with tunable activities. ABSTRACT Amyloids have been regarded as
Alessandra Esposito, Linda Leone, Flavia Nastri, Angela Lombardi   +3 more
wiley   +1 more source

Genome sequencing identified novel mechanisms underlying virescent mutation in upland cotton Gossypiuma hirsutum

BMC Genomics, 2021
Background Virescent mutation broadly exists in plants and is an ideal experimental material to investigate regulatory mechanisms underlying chlorophyll synthesis, photosynthesis and plant growth.
Jin Gao, Yang Shi, Wei Wang, Yong-Hui Wang, Hua Yang, Qing-Hua Shi, Jian-Ping Chen, Yan-Ru Sun, Li-Wang Cai   +8 more
doaj   +1 more source