Demand-only energetics at 120 ATP per glucose: A reply to Lynch [0.03%]
仅耗能理论：每消耗一个葡萄糖分子产生120个ATP——对Lynch教授的回应
William F Martin
William F Martin
Recently in these pages, a paper by Lynch appeared in response to a report showing that his numbers for biosynthetic costs (ATP demand) in cells are inflated, so much so that they would require E. coli to obtain >100 ATP per glucose and mit...
Electrical acceleration of the glycerophosphate shuttle by the VDAC1,2-hexokinase complexes of mitochondria [0.03%]
线粒体VDAC1,2-己糖激酶复合物对甘油磷酸穿梭的电激发效应
Victor V Lemeshko
Victor V Lemeshko
Glycerophosphate shuttle, an important crossroad between oxidative phosphorylation system, glycolysis and lipid metabolism, consists of the rate-limiting mitochondrial glycerol-3-phosphate dehydrogenase (GPD2) and the cytosolic dehydrogenas...
HydSL hydrogenase of Thiocapsa bogorovii may participate in sulfur respiration [0.03%]
热硫厚膜菌的HydSL氢化酶可能参与硫呼吸作用
Makhmadyusuf Khasimov,Ekaterina P Petushkova,Ekaterina V Mayorova et al.
Makhmadyusuf Khasimov et al.
According to the modern classification of NiFe hydrogenases, the HydSL hydrogenase of Thiocapsa bogorovii is assigned to subgroup 1e, the so-called isp-type hydrogenases. This subgroup is proposed to unite hydrogenases involved in sulfur re...
Assembly, selectivity, and compatibility of bacterial photosynthetic complexes from divergent species detected in a chimeric strain [0.03%]
异种细菌光合复合物的装配、选择性和兼容性在嵌合菌株中得到检测
Lu Wang,Yi-Hao Yan,Guang-Lei Wang et al.
Lu Wang et al.
Photosynthetic complexes comprising light-harvesting (LH) and reaction center (RC) components are essential for biological energy conversion in photosynthesis. Assembly of these multi-protein structures is a topic of great interest, and ass...
Recover a long-missing thermodynamic limit from experimental trajectories of F1-ATPase molecular motor [0.03%]
从F1-ATP酶分子马达的实验轨迹中恢复长期缺失的热力学极限值
Ruizheng Hou,Shoichi Toyabe,Zhisong Wang
Ruizheng Hou
In the field of molecular motors, a general thermodynamic limit is widely used in theories but long missing in experiments. By this limit, a motor's forward-to-backward stepping ratio obeys a distinct full-step scaling with an opposing forc...
Utilization of minor red-shifted chlorophyll a for oxygenic photosynthesis under far-red light in green algae [0.03%]
绿藻在远红光下利用次要红移叶绿素a进行放氧型光合作用
Fei Wang,Seiji Akimoto,Masami Kobayashi et al.
Fei Wang et al.
Several eukaryotic alga species can perform oxygenic photosynthesis under far-red (FR) light using light-harvesting complexes that absorb this light. We previously isolated a green alga, Neochloris sp. Biwa 5-2, which can grow under FR LED ...
Quantitative decomposition of non-photochemical quenching in Physcomitrium patens highlights synergistic roles of LhcSR and zeaxanthin [0.03%]
量化分解Physcomitrium patens的非光化学猝灭定量分解Physcomitrium patens的非光化学猝灭，强调LhcSR和紫黄素的协同作用
Cleo Bagchus,Lennart A I Ramakers,Dana Verhoeven et al.
Cleo Bagchus et al.
Non-photochemical quenching (NPQ) is a collective term for photoprotective processes that safely dissipate excess light energy as heat. The moss Physcomitrium patens is an interesting species for the study of NPQ as it contains PsbS (indisp...
Substitution of Mg2+ cofactor with Ca2+ disrupts positive cooperativity in F1FO-ATP(hydrol)ase catalysis [0.03%]
Mg2+辅因子被Ca2+替代会破坏F1FO-ATP(水解)酶催化的正协同效应
Cristina Algieri,Antonia Cugliari,Fabiana Trombetti et al.
Cristina Algieri et al.
The mitochondrial F1FO-ATPase is a dual-function enzyme that synthesizes ATP using the proton motive force and hydrolyzes ATP to reenergize the membrane. Mg2+ is the physiological cofactor of F1FO-ATPase, enabling both ATP synthesis and hyd...
A red-shifted LHCII in Chlamydomonas priscui allows for efficient light harvesting under an Antarctic lake [0.03%]
雪藻蓝菌中红移LHCCI在南极湖泊的高效光采集作用下闪烁光辉
Sam Wilson,Jun Minagawa
Sam Wilson
The psychrophilic green alga Chlamydomonas priscui was isolated from an Antarctic lake, where it has adapted to low light, low temperature, and high salinity environment. How photosynthetic light harvesting adjusts to such conditions remain...
The contribution of D2-Arg265 to the molecular architecture of the quinone-Fe-bicarbonate acceptor complex of photosystem II [0.03%]
D2-Arg265对光系统II醌-铁-碳酸氢根复合物分子构架的贡献
Victor Zhong,Imre Vass,Julian J Eaton-Rye
Victor Zhong
In Photosystem II (PS II) the D2 and D1 proteins provide binding sites for the primary (QA) and secondary (QB) plastoquinone electron acceptors, respectively. A non-heme iron is located between QA and QB that is coordinated by a bicarbonate...