Results 81 to 90 of about 67,957 (294)

Metabolic Regulation of Dimethylsulfoniopropionate Cleavage and Dimethyl Sulfide Production in Halomonas sp. D47

Advanced Science, EarlyView.
Dimethylsulfoniopropionate (DMSP) is a major marine organosulfur compound central to climate‐relevant dimethyl sulfide (DMS) production. In Halomonas sp. D47, DMSP catabolism is revealed to be coordinated by two transcriptional regulators, AcuR and AcuZ, which control gene expression by sensing DMSP and its metabolites.
Li‐Yuan Zheng, Wen‐Xin Jiang, Xiao‐Meng Sun, Li Liu, Zhao‐Jie Teng, Hou‐Qi Wang, Wen‐Jing Zhu, Chang Ge, Qi‐Long Qin, Ning‐Hua Liu, Hai‐Yan Cao, Hui‐Hui Fu, Chun‐Yang Li, Jonathan D. Todd, Xiu‐Lan Chen, Yu‐Zhong Zhang, Peng Wang   +16 more
wiley   +1 more source

Biosynthesis of Kaitocephalin: A Neuroprotective Natural Product Featuring a Peptide‐Like yet Nonpeptidic Scaffold

Angewandte Chemie, EarlyView.
Kaitocephalin (KCP) is a neuroprotective fungal metabolite with a unique scaffold of amino acids linked via C–C bonds. Genome‐transcriptome analyses identified its biosynthetic gene cluster (kpb cluster) in Eupenicillium shearii. LC‐MS/MS profiling identified four new KCP‐related compounds.
Yukari Maeno, Taro Shiraishi, Naoya Saito, Jun‐ichi Maruyama, Kazuo Shin‐ya, Tomohisa Kuzuyama   +5 more
wiley   +2 more sources

Sulfur isotopes from the Paleoproterozoic Francevillian Basin record multigenerational pyrite formation, not depositional conditions

Communications Earth & Environment
Bulk-rock sulfur isotope data from pyrite in the ~2.1 billion-year sedimentary rocks of the Francevillian Basin, Gabon, have underpinned ideas about initial oxygenation of Earth’s surface environments and eukaryote evolution.
Kärt Paiste, David A. Fike, Karen Bakakas Mayika, Mathieu Moussavou, Aivo Lepland, Anthony R. Prave, Tomohiko Sato, Yuichiro Ueno, Yusuke Sawaki, Jocelyn A. Richardson, Robert S. Wood, Clive Jones, Samuel M. Webb, Kalle Kirsimäe   +13 more
doaj   +1 more source

Isotopic Evidence for Multiple Recycled Sulfur Reservoirs in the Mangaia Mantle Plume

Geochemistry, Geophysics, Geosystems, 2020
Mangaia, an ocean island in the Cook‐Austral volcanic chain, is the type locality for the HIMU mantle reservoir and has also been shown to exhibit evidence for recycled sulfur with anomalous δ34S and Δ33S that has been attributed an Archean origin.
J. W. Dottin III, J. Labidi, M. G. Jackson, J. Woodhead, J. Farquhar   +4 more
doaj   +1 more source

Multiple Sulfur Isotope Records of the 3.22 Ga Moodies Group, Barberton Greenstone Belt

Geosciences, 2020
The Moodies Group, the uppermost unit in the Barberton Greenstone Belt (BGB) in South Africa, is a ~3.7-km-thick coarse clastic succession accumulated on terrestrial-to-shallow marine settings at around 3.22 Ga.
Masafumi Saitoh, Sami Nabhan, Christophe Thomazo, Nicolas Olivier, Jean-François Moyen, Yuichiro Ueno, Johanna Marin-Carbonne   +6 more
doaj   +1 more source

Isotope shift on the chlorine electron affinity revisited by an MCHF/CI approach

, 2013
Today, the electron affinity is experimentally well known for most of the elements and is a useful guideline for developing ab initio computational methods.
Carette, Thomas, Godefroid, Michel
core   +1 more source

A review of volatiles in the Martian interior [PDF]

, 2016
Multiple observations from missions to Mars have revealed compelling evidence for a volatile-rich Martian crust. A leading theory contends that eruption of basaltic magmas was the ultimate mechanism of transfer of volatiles from the mantle toward the ...
Baratoux, David, Beaty, David, Breuer, Doris, Farcy, Benjamin J., Filiberto, Justin, Grott, Matthias, Jones, John H., Kiefer, Walter S., Mane, Prajkta, McCubbin, Francis M., Schwenzer, Susanne P.   +10 more
core   +1 more source

Structure‐Guided Engineering of a Promiscuous O‐Methyltransferase for a SAM Regeneration Biocatalysis Platform of Methylated Pharmaceuticals

Advanced Science, EarlyView.
A substrate promiscuous and regioselective O‐methyltransferase, SmOMT, is functionally and structurally characterized. A double mutant, SmOMTE152A/I306A, exhibited enhanced catalytic activity. By coupling this mutant with a mutant halide methyltransferase, AtHMTV140T, for SAM regeneration, a superior artificial fusion enzyme, AtHMTV140T‐L95‐SmOMTE152A ...
Xiran Xiong, Jun Song, Shihan Li, Lu Jin, Qi He, Baohui Zhang, Yan Cao, Shanyong Yi, Yanfang Yang, Xiang Li, Juan Li, Wei Huang   +11 more
wiley   +1 more source

Proximity Engineering of Fe‒N4 Twins for Oriented Generation of Singlet Oxygen for Hospital Wastewater Treatment

Angewandte Chemie, EarlyView.
Precise modulation of Fe–N4 site distances constructs spin‐regulated Fe–N4 twins, triggering a volcano‐type Fenton‐like activity and promoting oriented singlet oxygen generation. The twin‐site catalyst enables highly selective and efficient hospital wastewater purification with simultaneous pharmaceutical degradation and disinfection under low ...
Xinhao Wang, Zhaokun Xiong, Shuai Yang, Hongyu Zhou, Yanbiao Shi, Zelin Wu, Bingkun Huang, Lei Yang, Chuan‐Shu He, Xiaoguang Duan, Bo Lai   +10 more
wiley   +2 more sources

Hydrochemical determination of source water contributions to Lake Lungo and Lake Ripasottile (central Italy) [PDF]

, 2016
Lake Lungo and Lake Ripasottile are two shallow (4-5 m) lakes located in the Rieti Basin, central Italy, that have been described previously as surface outcroppings of the groundwater table.
Archer, Claire, Kreamer, David, Mensing, Scott, Noble, Paula, Petitta, Marco, Piovesan, Gianluca, Piscopo, Vincenzo, Poulson, Simon R., Rosen, Michael R.   +8 more
core   +3 more sources