Proteomic approach-based comparison of metabolic pathways and functional activities of whey proteins derived from Guishan and Saanen goat milk

Guishan goats, a unique goat breed in Yunnan Province, have a long history and representation, but their whey protein and function remain unclear. In this study, we carried out a quantitative analysis of the Guishan and Saanen goat whey proteome using a label-free proteomic approach. A total of 500...

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Bibliographic Details
Published in:Journal of dairy science 2023-04, Vol.106 (4), p.2247-2260
Main Authors: Zhao, Qiong, Li, Kunlin, Jiang, Kexin, Yuan, Ziyou, Xiao, Menglin, Wei, Guangqiang, Zheng, Wentao, Wang, Xuefeng, Huang, Aixiang
Format: Article
Language:English
Subjects:
Animals
biological functions
China
goat whey protein
Goats - metabolism
immunomodulatory
label-free quantification
Metabolic Networks and Pathways
Milk - chemistry
Milk Proteins - analysis
Proteome - metabolism
Proteomics
Whey Proteins - chemistry
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Summary:Guishan goats, a unique goat breed in Yunnan Province, have a long history and representation, but their whey protein and function remain unclear. In this study, we carried out a quantitative analysis of the Guishan and Saanen goat whey proteome using a label-free proteomic approach. A total of 500 proteins were quantified from the 2 kinds of goat whey proteins, including 463 common proteins, 37 uniquely expressed whey proteins (UEWP), and 12 differentially expressed whey proteins (DEWP). Bioinformatics analysis indicated that UEWP and DEWP were mainly involved in cellular and immune system processes, membrane, and binding. In addition, UEWP and DEWP in Guishan goats participated primarily in metabolism and immune-related pathways, whereas Saanen goat whey proteins were associated mostly with environmental information processing-related pathways. Guishan goat whey promoted the growth of RAW264.7 macrophages more than Saanen goat whey, and significantly reduced the production of nitric oxide in lipopolysaccharide-stimulated RAW264.7 cells. This study provides a reference for further understanding these 2 goat whey proteins and finding functional active substances from them.
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.2022-22404