Results 91 to 100 of about 1,126 (284)

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

FEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

The Metabolizable Energy of Wheat By-Products

Journal of Applied Poultry Research, 1996
Abstract The composotion of wheat milling by-products varies markedly in different geographic regions among suppliers. In this study, the determined true metabolizable energy (TMEn) of 15 samples of wheat by-products, along with proximate composition and NDF, were investigated to develop prediction equations for estimating energy values.
openaire   +1 more source

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

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens [PDF]

, 2019
The objective of this study was to evaluate levels of inclusion of an enzyme complex (EC) in corn- and soybean meal-based diets for laying hens on the digestibility of nutrients and energy.
Cláudio José Parro de Oliveira, Cláudia da Costa Lopes (4771746), Emmanuele Maria Florêncio de Arruda (4771749), Cláudia da Costa Lopes, Emmanuele Maria Florêncio de Arruda, Rabello, Carlos Bôa-Viagem, Lopes, Cláudia da Costa, Oliveira, Camilla Roana Costa de, Ludke, Maria do Carmo Mohaupt Marques, Oliveira, Cláudio José Parro de, Silva, Jaqueline de Cássia Ramos da, Maria do Carmo Mohaupt Marques Ludke (4771755), Jaqueline de Cássia Ramos da Silva (4771752), Maria do Carmo Mohaupt Marques Ludke, Jaqueline de Cássia Ramos da Silva, Carlos Bôa-Viagem Rabello (4771761), Elainy Cristina Lopes (5960063), Camilla Roana Costa de Oliveira (5960057), Elainy Cristina Lopes, Cláudio José Parro de Oliveira (6403649), Carlos Bôa-Viagem Rabello, Camilla Roana Costa de Oliveira, Lopes, Elainy Cristina, Arruda, Emmanuele Maria Florêncio de   +23 more
core   +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

Temperatura ambiente e idade do frango de corte sobre o valor energético do milho

, 2021
This study aimed to assess the effects of environmental temperature and age of broilers on the energy value of corn. A total of 288 Cobb 500 chicks were distributed in a complete randomized design with a split-plot arrangement and six replications of six
Fascina, Vitor Barbosa [UNESP], De Souza, Ivan Mailinch Gonçalves Pereira [UNESP], Pezzato, Antonio Celso [UNESP], Castelo, Pedro Gibim [UNESP], Carvalho, Fabyola Barros, Sartori, José Roberto [UNESP]   +5 more
core   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Inclusion of maize distillers’ dried grains with solubles (DDGS) associated with the use of metabolisability-enhancing additives in the diet of laying quails [PDF]

Anais da Academia Brasileira de Ciências
This study aimed to incorporate maize distillers’ dried grains with solubles (DDGS) into the diet of laying Japanese quail, along with two feed additives, xylanase and a metabolizability enhancer based on clay and algae.
MARCOS ADRIANO P. BARBOSA, VINICIUS RICARDO C. DE PAULA, MARINA X.L. OLIVEIRA, AIRES S. SILVA, DAIANE O. GRIESER, SIMARA MARCIA MARCATO   +5 more
doaj   +2 more sources

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Determination of the energetic value of corn, soybean meal and micronized full fat soybean for newly hatched chicks

Brazilian Journal of Poultry Science, 2004
There are some evidences described in the literature showing reduced energy metabolizability of ingredients for newly hatched chicks. Hence, a metabolism trial was carried out with the objective of determining the metabolizable energy of corn grain ...
FA Longo, JFM Menten, AA Pedroso, AN Figueiredo, AMC Racanicci, JB Gaiotto, JOB Sorbara   +6 more
doaj   +1 more source