Comparative proteomic exploration of whey proteins in human and bovine colostrum and mature milk using iTRAQ-coupled LC-MS/MS.
Int J Food Sci Nutr
; 68(6): 671-681, 2017 Sep.
Article
em En
| MEDLINE
| ID: mdl-28276902
ABSTRACT
Whey, an essential source of dietary nutrients, is widely used in dairy foods for infants. A total of 584 whey proteins in human and bovine colostrum and mature milk were identified and quantified by the isobaric tag for relative and absolute quantification (iTRAQ) proteomic method. The 424 differentially expressed whey proteins were identified and analyzed according to gene ontology (GO) annotation, Kyoto encyclopedia of genes and genomes (KEGG) pathway, and multivariate statistical analysis. Biological processes principally involved biological regulation and response to stimulus. Major cellular components were extracellular region part and extracellular space. The most prevalent molecular function was protein binding. Twenty immune-related proteins and 13 proteins related to enzyme regulatory activity were differentially expressed in human and bovine milk. Differentially expressed whey proteins participated in many KEGG pathways, including major complement and coagulation cascades and in phagosomes. Whey proteins show obvious differences in expression in human and bovine colostrum and mature milk, with consequences for biological function. The results here increase our understanding of different whey proteomes, which could provide useful information for the development and manufacture of dairy products and nutrient food for infants. The advanced iTRAQ proteomic approach was used to analyze differentially expressed whey proteins in human and bovine colostrum and mature milk.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Colostro
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Proteômica
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Leite
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Proteínas do Soro do Leite
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Leite Humano
Limite:
Animals
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Humans
Idioma:
En
Revista:
Int J Food Sci Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2017
Tipo de documento:
Article