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Sagittarius B2;glycolaldehyde;ethylene glycol;Galactic center;Sgr B2;Shanghai Tian Ma Radio Telescope;Shanghai Astronomical Observatory;complex organic moecule

Glycolaldehyde and Ethylene Glycol Detected Around Sagittarius B2[Oct 13, 2017]

Sagittarius B2 contains various kinds of complex molecules, including alcohols like ethanol and methanol, which cloud exhibit a weak concentration of emission of glycolaldehyde and ethylene glycol. A team of researchers led by LI Juan of the Shanghai Astronomical Observatory recently conducted new observations of Sagittarius B2 that independently detected the emission of these two molecules, and provided more detailed information about this process.

parallel evolution;aerobic fermentation;gene;genetic mechanism;regulation evolution;yeast fermentation;AT-rich

New Mechanism Leads to Yeast Fermentation[Oct 12, 2017]

Recently, scientists from Tianjin Institute of Industrial Biotechnology of the Chinese Academy of Sciences found that, about 300 million years ago, the other wine and beer yeast Dekkera bruxellensis diverged from the Saccharomyces cerevisiae, long before WGD, also generated the capacity of aerobic fermentation.

Thogotovirus;Othomyxoviridae;fusion protein;crystal structure

Fusion Machine of Human Pathogen Thogotoviruses Shares Same Origin with Insect Baculovirus[Oct 12, 2017]

Professor GAO Fu (George Fu Gao)'s group from Institute of Microbiology of Chinese Academy of Sciences determined the crystal structures of THOV and DHOV Gps at atomic resolutions. Both structures display typical characteristics of class III viral fusion proteins in postfusion conformation.

Zika virus;pathogen;amino acid;microcephaly

Zika was a Mild Bug, a New Discovery Shows How It Turned Monstrous[Oct 12, 2017]

A change of a single amino acid created a new strain of Zika much more dangerous to developing brain cells. Shortly after, Zika was implicated in a dramatic increase in cases of microcephaly, in which babies' heads are abnormally small, and a range of other birth defects.

cystathionine β-synthase;glutathione;methionine;oxidative stress;serine

A Neglected Non-essential Amino Acid, Dietary Supplementation of Serine, Can Alleviate Oxidative Stress[Oct 12, 2017]

A team of researchers from the Institute of Subtropical Agriculture, Chinese Academy of Sciences (ISA) studied the effects of supplementation with serine in water on oxidative damage and its relative mechanisms in a mouse model of diquat-induced oxidative stress.

gene silencing;RSF1;H2A ubiquitination;H2Aub binding protein;PRC1;transcription repression

Key Factor Identified in Gene Silencing[Oct 12, 2017]

A fertilized human egg develops into multiple tissues, organs and about 200 distinct cell types. Each cell type has the same genes, but they are expressed differently during development and in mature cells. Researchers describe a key role for a protein called RSF1 in silencing genes. Besides the molecular biology details, the researchers also showed that disruption of RSF1 expression in the embryos of African clawed frogs caused severe developmental defects in the tadpoles — through a dysregulation of mesodermal cell fate specification.


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