Results 41 to 50 of about 3,619,302 (288)
Essential metal depletion in an anaerobic reactor
Water Science and Technology, 2003 The effect of the absence of trace elements on the conversion of a mixture of volatile fatty acids by a distillery anaerobic granular sludge was investigated. Two UASB reactors were operated under identical operational conditions except for the influent trace metal concentrations, during 140 days.
Osuna, M.B. +3 more
openaire +3 more sources
Journal of FisheriesThe present study aimed to determine the human health risk (HHR) of zinc (Zn) in forty species of marine commercial fishes sourced from Peninsular Malaysia and available between April and May 2023.
Chee Kong Yap, Khalid Awadh Al-Mutairi
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
PENGARUH ECO ENZYME TERHADAP KANDUNGAN LOGAM BERAT LAHAN BEKAS TAMBANG BATUBARA
Ziraa'ah: Majalah Ilmiah Pertanian, 2022 Heavy metals are metallic elements with high molecular weight. Heavy metals are classified as essential and non-essential. Essential heavy metals are needed in small amounts, such as Fe, Mn, Cu, and Zn, while non-essential heavy metals are heavy metals ...
Zainudin Zainudin, Roro Kesumaningwati
doaj +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
The Aging Gut–Brain Axis: Effects of Dietary Polyphenols and Metal Exposure
Chronic Diseases and Translational MedicineDiet provides essential metals, which are required for the growth, development, and well‐functioning of the body. Nonetheless, some natural and human activities add toxic heavy metals to the diet, consequently introducing them to our bodies, resulting in
Luqi Cao +7 more
doaj +1 more source
Placental Lead and its Interaction with Some Essential Metals among Women from Lucknow, India
Asian Journal of Medical Sciences, 2011 Objective: The placenta connects and separates two genetically distinct individuals: the mother and the fetus. There is no placental-fetal barrier blocking lead transport, placing the fetus at high risk from lead exposure.
Jyoti Singh
doaj +1 more source
Journal of Agriculture and Food Research, 2023 This study aimed to evaluate the distribution of heavy metals (essential, trace essential, and non-essential) in medicinal herb (Pentas Schimperiana) roots, stem bark, and leaf samples collected from different geographical locations.
Tsegaye Bojago Dado +4 more
doaj +1 more source