Quantitative TMT-based proteomics revealing host, dietary and microbial proteins in bovine faeces including barley serpin Z4, a prominent component in the head of beer

Huang, Y., Jonsson, N. N. , McLaughlin, M. , Burchmore, R. , Johnson, P. C.D. , Jones, R. , McGill, S., Brady, N., Weidt, S. and Eckersall, D. (2023) Quantitative TMT-based proteomics revealing host, dietary and microbial proteins in bovine faeces including barley serpin Z4, a prominent component in the head of beer. Journal of Proteomics, 285, 104941. (doi: 10.1016/j.jprot.2023.104941) (PMID:37285906)

Abstract

There has been little information about the proteome of bovine faeces or about the contribution to the faecal proteome of proteins from the host, the feed or the intestinal microbiome. Here, the bovine faecal proteome and the origin of its component proteins was assessed, while also determining the effect of treating barley, the major carbohydrate in the feed, with either ammonia (ATB) or sodium propionate (PTB) preservative. Healthy continental crossbreed steers were allocated to two groups and fed on either of the barley-based diets. Five faecal samples from each group were collected on Day 81 of the trial and analysed by quantitative proteomics using nLC-ESI-MS/MS after tandem mass tag labelling. In total, 281 bovine proteins, 199 barley proteins, 176 bacterial proteins and 190 archaeal proteins were identified in the faeces. Mucosal pentraxin, albumin and digestive enzymes were among bovine proteins identified. Serpin Z4 a protease inhibitor was the most abundant barley protein identified which is also found in barley-based beer, while numerous microbial proteins were identified, many originating bacteria from Clostridium, while Methanobrevibacter was the dominant archaeal genus. Thirty-nine proteins were differentially abundant between groups, the majority being more abundant in the PTB group compared to the ATB group.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: McGill, Mrs Suzanne and Burchmore, Dr Richard and Eckersall, Professor David and Weidt, Dr Stefan and Johnson, Dr Paul and Huang, Yixin and Brady, Mrs Nicola and McLaughlin, Dr Mark and Jonsson, Professor Nicholas and Jones, Rheinallt
• Authors: Huang, Y., Jonsson, N. N., McLaughlin, M., Burchmore, R., Johnson, P. C.D., Jones, R., McGill, S., Brady, N., Weidt, S., and Eckersall, D.
• College/School: College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine; College of Medical Veterinary and Life Sciences > School of Infection & Immunity
• Journal Name: Journal of Proteomics
• Publisher: Elsevier
• ISSN: 1874-3919
• ISSN (Online): 1874-3919
• Published Online: 06 June 2023
• Copyright Holders: Copyright © 2023 The Authors
• First Published: First published in Journal of Proteomics 285:104941
• Publisher Policy: Reproduced under a Creative Commons license