Results 61 to 70 of about 7,136,512 (247)

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Water in the 2000 Virginia General Assembly

, 2000
The Virginia General Assembly held its 2000 session from January 12 to March 10. Lawmakers considered 3,172 bills and resolutions (compared to 2,735 measures considered in 1999).
Virginia Water Resources Research Center
core  

Applications of organic manure increased maize (Zea mays L.) yield and water productivity in a semi-arid region

, 2017
Organic manure application has been neglected in recent years, reflecting the rapid replacement with synthetic fertilizer. Exploration of the restorative effect of organic manure on the soil fertility, quality and sustainable productivity is urgently ...
Wang, Nan, Zhang, SQ, Wang, Xiaolin, Zhang, Suiqi, Chen, YL (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China., Ren, Yuanyuan, Chen, Yinglong   +6 more
core   +1 more source

Contrasting Impacts of Climate and Vegetation Changes on Water Yield Across Global and Regional Scales

Water Resources Research
Water yield (WY) is a key indicator of water availability and the mechanisms regulating WY have become increasingly complex with ongoing global changes in climate and vegetation.
Siyu Liu, Tao Lin, Zixu Jia, Meixia Lin, Xiangzhong Guo, Junmao Zhang, Yicheng Zheng, Yuan Chen, Hongkai Geng, Jing Lin   +9 more
doaj   +1 more source

Quantifying Ecosystem Disservice in the Philippines through Water Release Potential Estimation Using ES-Based Model: The Case of Balanac Watershed

Recoletos Multidisciplinary Research Journal
Background: Rapid land use change and intensified climate change impacts have altered a landscape's natural hydrological processes and ecosystem services. These changes may cause flooding, water quality degradation, and water scarcity.
Gemmalyn Trespalacio, Annadel Sapugay, Nico Jayson Anastacio, J. Carl Ureta, Joan Ureta   +4 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Water in the 2005 Virginia General Assembly

, 2005
The 2005 Virginia General Assembly convened January 12 and adjourned February 27, with a reconvened (“veto”) session on April 6. The legislature considered 3363 measures (2938 introduced this year and 425 carried over from last year); 1610 measures ...
Virginia Water Resources Research Center
core  

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, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Water in the 2010 Virginia General Assembly

, 2010
The 2010 Virginia General Assembly convened January 13 and adjourned March 13. The reconvened (“veto”) session was held April 21. During the session, the Assembly considered 2964 measures, passing 1598 of them, defeating 1093, and continuing 273 until ...
Virginia Water Resources Research Center
core  

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source