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Quantitative proteomics analysis of barley-based liquid feed and the effect of protease inhibitors and NADPH-dependent thioredoxin reductase/thioredoxin (NTR/Trx) system.

08:00 EDT 16th May 2019 | BioPortfolio

Summary of "Quantitative proteomics analysis of barley-based liquid feed and the effect of protease inhibitors and NADPH-dependent thioredoxin reductase/thioredoxin (NTR/Trx) system."

Liquid feeding strategies have been devised with the aim of enhancing grain nutrient availability for livestock. It is characterized by a steeping/soaking period that softens the grains and initiates mobilization of seed storage reserves. The present study uses 2D gel-based proteomics to investigate the role of proteolysis and reduction by thioredoxins over a 48 h of steeping period by monitoring protein abundance dynamics in barley-based liquid feed samples supplemented with either protease inhibitors or NADPH-dependent thioredoxin reductase/thioredoxin (NTR/Trx). Several full-length storage proteins were only identified in the water-extractable fraction of feed containing protease inhibitors, illustrating significant inhibition of proteolytic activities arising during the steeping period. Application of functional NTR/Trx to liquid feed reductively increased solubility of known and potentially new Trx-target proteins, e.g. outer membrane protein X, and their susceptibility to proteolysis. Thus NTR/Trx system exhibits important potential as a feed additive to enhance nutrient digestibility in monogastric animals.

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This article was published in the following journal.

Name: Journal of agricultural and food chemistry
ISSN: 1520-5118
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