Results 91 to 100 of about 1,921,425 (303)

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

Prediction of the length and width of quail eggs using linear regression analysis [PDF]

Eurasian Journal of Veterinary Sciences
Aim: This study was aimed at establishing regression equations for the estimation of egg length and egg width values using egg weight values in quail eggs, and at determining the error rate of the regression equations established.
Sema Alaşahan, Betül Dağoğlu Hark, Ömer Eltas   +2 more
doaj  

SIFAT MEKANIS DAN TEGANGAN DASAR 13 JENIS KAYU KALIMANTAN TIMUR

Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
The green ultimate stress values of 13 Indonesia timbers from East Kalimantan are presented in this paper using the _ASTM D 145 - 70 test method. The result indicates a high coefficient of variation (53%) for work to proportional limit (Gonystylus ...
S Karnasudirdja, B Ginoga, Nurwati Hajib
doaj   +1 more source

Global regularity of solutions of coupled Navier-Stokes equations and nonlinear Fokker

, 2009
We provide a proof of global regularity of solutions of coupled Navier-Stokes equations and Fokker-Planck equations, in two spatial dimen-sions, in the absence of boundaries.
Peter Constantin, Planck Equations, Gregory Seregin   +2 more
core  

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

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

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

Predicción del porcentaje de proteína total a partir de muestreos parciales y ajuste de efectos medioambientales

Revista Mvz Cordoba, 2012
RESUMEN Objetivo. Hallar una ecuación matemática para estimar el porcentaje de proteína promedio total (PPPT), a partir de la producción parcial (PP) y otros factores ambientales que afectan esta característica. Materiales y métodos.
Maria C Ceballos B, Guillermo Correa L, Julián Echeverri Z   +2 more
doaj   +1 more source

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

Development of a predictive equation for resting energy expenditure in pediatric patients with oncological diagnosis

Frontiers in Nutrition
Background and aimPediatric cancer is a significant health concern, particularly in low- and middle-income countries with lower cure rates. The nutritional status of these patients is crucial because malnutrition, whether due to a deficiency or excess of
Alda Daniela García-Guzmán, Alda Daniela García-Guzmán, Sandra Nayeli Becerra-Morales, Sandra Nayeli Becerra-Morales, Beatriz Adriana Pinzón-Navarro, Beatriz Adriana Pinzón-Navarro, Daffne Danae Baldwin-Monroy, Daffne Danae Baldwin-Monroy, Daffne Danae Baldwin-Monroy, Daffne Danae Baldwin-Monroy, Daffne Danae Baldwin-Monroy, Marta Zapata-Tarres, Liliana Velasco-Hidalgo, Liliana Velasco-Hidalgo, Azalia Avila-Nava, Rocío del Socorro Cárdenas-Cardos, Karla Maldonado-Silva, Martha Guevara-Cruz, Martha Guevara-Cruz, Isabel Medina-Vera, Isabel Medina-Vera   +20 more
doaj   +1 more source