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山东大学生命科学学院生物化学课件 Citric Acid Cycle。
Stanford research finds that diversity of large animals plays an important role in carbon cycle
Stanford diversity of large animals plays carbon cycle
2017/10/25
Trees in tropical forests are well known for removing carbon dioxide from the air and storing the potent greenhouse gas as carbon in their leafy branches and extensive roots. But a new analysis led by...
Two undergrads improve plant carbon-cycle models（图）
Two undergrads improve plant carbon-cycle models
2017/9/1
In the summer of 2012, two undergraduate students tackled a problem that plant ecology experts had overlooked for 30 years. The students demonstrated that different plant species vary in how they take...
Polar glaciers may be home to previously undiscovered carbon cycle
Polar glaciers home to previously undiscovered carbon cycle
2017/4/27
Microbes in streams flowing on the surface of glaciers in the Arctic and Antarctic may represent a previously underestimated source of organic material and be part of an as yet undiscovered "dynamic l...
A weight-loss program adapted to the menstrual cycle increases weight loss in healthy, overweight, premenopausal women: a 6-mo randomized controlled trial
menstrual cycle obesity weight loss hormonal fluctuations energy expenditure satiation energy restriction
2018/11/30
Background: Hormonal fluctuations during the menstrual cycle influence energy intake and expenditure as well as eating preferences and behavior.
Serum caffeine and paraxanthine concentrations and menstrual cycle function: correlations with beverage intakes and associations with race, reproductive hormones, and anovulation in the BioCycle Study
anovulation biological markers caffeine menstrual cycle 1,7-dimethylxanthine
2018/12/3
Background: Clinicians often recommend limiting caffeine intake while attempting to conceive; however, few studies have evaluated the associations between caffeine exposure and menstrual cycle functio...
Direct Measurement of the Protein Response to An Electrostatic Perturbation That Mimics the Catalytic Cycle in Ketosteroid Isomerase
hydroperoxide lipids GUV photosensitization methylene blue
2016/5/25
Understanding how electric fields and their fluctuations in the active site of enzymes affect efficient catalysis represents a critical objective of biochemical research. We have directly measured the...
Serum aminotransferases in nonalcoholic fatty liver disease are a signature of liver metabolic perturbations at the amino acid and Krebs cycle level
fatty liver gene expression liver injury metabolomics transaminases
2018/11/27
Background: Extensive epidemiologic studies have shown that cardiovascular disease and the metabolic syndrome (MetS) are associated with serum concentrations of liver enzymes; however, fundamental cha...
Crystal structures of a group II chaperonin reveal the open and closed states associated with the protein folding cycle
Crystal structures group II chaperonin reveal closed states associated protein folding cycle
2015/12/11
Chaperonins are large protein complexes consisting of two stacked multisubunit rings, which open and close in an ATP-dependent manner to create a protected environment for protein folding. Here, we de...
Microbial communities involved in the nitrogen cycle at the soil aggregate scale
Soil structure soil microbial community microbial community the aggregation structure and soil
2015/1/28
We present research aimed at determining the role of soil structure in the organization of microbial communities in soil. We have focused on the microbial communities involved in functional roles with...
Cellulose degradation and biofilm formation in the developmental life cycle of the cellulolytic actinomycete Thermobifida fusca
Actinomycetes filamentous microorganisms biofilms insoluble fiber substrates such as cellulose cellulose
2015/1/28
Actinomycetes have been used with enormous success in industrial processes; however, little is known about biofilm development by these filamentous microbes, and the presence of community development ...
{\it CSE1}, an essential yeast gene required for cell cycle progression, encodes a nuclear transport factor
Brewing yeast genes chromosomes genes cell cycle and protein nuclear proteins
2014/12/11
CSE1, an essential Saccharomyces cerevisiae gene was initially isolated in a screen for genes important for accurate chromosome segregation. cse1 mutants have pleiotropic phenotypes including defects ...
The role of cell cycle progression and cyclin -dependent kinase 2 in thymocyte negative selection
T cells and thymus cells thymus self antigen cells
2014/12/11
Autoreactive, immature T cells (thymocytes) are deleted from the thymus during development by the process of negative selection. This mechanism occurs when the thymocyte, T cell receptor (TCR) recogni...
The viroporin activity of VP2, VP3 and VP4 contribute to the SV40 viral life cycle
Pure sciences Biological sciences Penetration Virus release Simian virus 40 Viroporin Cell lysis
2014/12/10
Viruses have evolved to exploit cellular pathways and machinery in order to deliver their genome to the cell, replicate, and produce viral progeny. Nonenveloped viruses must overcome membrane barriers...
Proteolytic Regulation of CtrA, the Master Regulator of Cell Cycle in Caulobacter crescentus
Caulobacter proteolysis CtrA SciP
2014/12/9
Cell cycle progression in Caulobacter crescentus depends on the master regulator, CtrA. During the transition from swarmer to stalk cell (G1 to S phase), CtrA is degraded by the AAA+ protease ClpXP an...