Results 121 to 130 of about 732,679 (273)

Biochemical and Biophysical Studies of Heme Binding Proteins from the Corynebacterium diphtheriae and Streptococcus pyogenes Heme Uptake Pathways

open access: yes, 2018
The Gram-positive pathogens Corynebacterium diphtheriae and Streptococcus pyogenes both require iron for survival. These bacteria have developed sophisticated heme uptake and transport protein machinery responsible for the import of iron into the cell ...
Draganova, Elizabeth B
core   +1 more source

Plant responses to iron nutrition with emphasis on the underutilized crop tef (Eragrostis tef): A review

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Iron (Fe) deficiency limits the physical health, cognitive development, and economic output of billions of people globally, especially children and productive‐age women. Tef is an underutilized and stress‐resilient crop, which is becoming popular for its grains containing high bioavailable Fe and has the potential to mitigate Fe deficiency.
Muhammad Numan   +2 more
wiley   +1 more source

Genome-Based Analysis of Heme Biosynthesis and Uptake in Prokaryotic Systems

open access: yes, 2016
Heme is the prosthetic group of many proteins that carry out a variety of key biological functions. In addition, for many pathogenic organisms, heme (acquired from the host) may constitute a very important source of iron.
Gabriele Cavallaro (200864)   +2 more
core   +3 more sources

Identifying resistance‐conferring cytochrome P450s in weeds: experimental strategies and practical considerations

open access: yesPest Management Science, EarlyView.
Identifying resistance‐conferring cytochrome P450s requires integrating weed characterization, gene discovery and functional validation. No single approach is sufficient to distinguish causal resistance genes from herbicide‐metabolizing enzymes. Abstract Cytochrome P450 monooxygenases (P450s) play a pivotal role in metabolic herbicide resistance, yet ...
Satoshi Iwakami, Takuya Yamaguchi
wiley   +1 more source

Superoxide-mediated O2 activation drives radical cyclization in ergot alkaloid biosynthesis

open access: yesEngineering Microbiology
Conventional heme enzymes utilize iron–oxygen intermediates to activate substrates and drive reactions. Recently, Chen et al. discovered a novel NADPH-independent superoxide mechanism of heme catalase EasC, which facilitates an O2-dependent radical ...
Yuanyuan Jiang, Zhong Li, Shengying Li
doaj   +1 more source

The levels of heme biosynthesis and heme biosynthetic enzymes are enhanced in lung cancer cells.

open access: yes, 2013
The normal HBEC30KT lung epithelial (HBEC) and NSCLC HCC4017 (HCC) cells were cultured, RNA and proteins were extracted. Transcript levels were detected by using quantitative real-time RT-PCR, and protein levels were detected by using Western blotting ...
Jagmohan Hooda (414306)   +7 more
core   +1 more source

Characterization of a novel R98Q mutation that confers resistance to sulfentrazone in common ragweed (Ambrosia artemisiifolia) populations from Michigan

open access: yesPest Management Science, EarlyView.
Field‐collected Ambrosia artemisiifolia populations from Michigan, USA, soybean fields exhibited strong resistance to the protoporphyrinogen IX oxidase (PPO)‐inhibiting herbicide sulfentrazone and reduced sensitivity to fomesafen. Target‐site analysis identified a novel Arg‐98‐Gln (R98Q) substitution in PPO2, co‐occurring with the previously reported ...
Sara Álvarez‐Rodríguez   +4 more
wiley   +1 more source

Erythropoiesis and Iron Sulfur Cluster Biogenesis

open access: yesAdvances in Hematology, 2010
Erythropoiesis in animals is a synchronized process of erythroid cell differentiation that depends on successful acquisition of iron. Heme synthesis depends on iron through its dependence on iron sulfur (Fe-S) cluster biogenesis.
Hong Ye, Tracey A. Rouault
doaj   +1 more source

Heme biosynthesis and regulation in the filamentous fungus Aspergillus niger [PDF]

open access: yes, 2013
Cellulose makes up one of the most abundant renewable materials, present in all kinds of plant biomass (Pauly and Keegstra 2010). However, to be able to utilize the cellulose as feedstock, it needs to be separated from lignin which cements the cellulose ...
Franken, A.C.W.
core  

Multitarget Regulatory Mechanisms and Research Advances of Plant‐Derived Bioactive Ingredients in Hypertension Prevention and Management

open access: yesPhytotherapy Research, EarlyView.
Schematic overview of the multi‐target and multi‐pathway mechanisms of PDBI in the prevention and management of hypertension. ABSTRACT Hypertension remains a major global risk factor for cardiovascular diseases, yet current treatments face challenges such as suboptimal blood pressure control and inadequate organ protection.
Qiqi Deng   +6 more
wiley   +1 more source

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