Article (Scientific journals)
Study on the susceptibility of the bovine milk fat globule membrane proteins to enzymatic hydrolysis and organization of some of the proteins
Vanderghem, Caroline; Francis, Frédéric; Danthine, Sabine et al.
2011In International Dairy Journal, 21 (5), p. 312-318
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Keywords :
ACID-BINDING PROTEIN; MAMMARY-GLAND; PROTEOLYTIC DIGESTION;; ELECTRON-MICROSCOPY
Abstract :
[en] Isolated milk fat globules were subjected to enzyme hydrolysis by a specific protease (trypsin) and a nonspecific protease (pronase E) to study the asymmetric arrangement of milk fat globule membrane (MFGM) proteins. The remaining proteins on the globules after proteolysis were resolved by two-dimensional gel electrophoresis and identified by mass spectrometry. By this proteomic approach, the results confirmed different susceptibility of the MFGM proteins to proteolysis by enzymes. Butyrophilin and adipophilin were completely digested by trypsin and by pronase E, whereas lactadherin and xanthine dehydrogenase/oxidase were almost resistant to hydrolysis by trypsin and partially attacked by pronase E. Based on our results and recent bibliographic data, an up-dated model of the organization of some MFGM proteins is proposed and discussed. (c) 2011 Elsevier Ltd. All rights reserved.
Disciplines :
Food science
Author, co-author :
Vanderghem, Caroline ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Francis, Frédéric  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Danthine, Sabine  ;  Université de Liège - ULiège > Chimie et bio-industries > Laboratoire des Sciences des aliments et formulation
Deroanne, Claude
Paquot, Michel ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
De Pauw, Edwin  ;  Université de Liège - ULiège > Département de chimie (sciences) > GIGA-R : Laboratoire de spectrométrie de masse (L.S.M.)
Blecker, Christophe ;  Université de Liège - ULiège > Chimie et bio-industries > Laboratoire des Sciences des aliments et formulation
Language :
English
Title :
Study on the susceptibility of the bovine milk fat globule membrane proteins to enzymatic hydrolysis and organization of some of the proteins
Publication date :
May 2011
Journal title :
International Dairy Journal
ISSN :
0958-6946
Publisher :
Elsevier Science
Volume :
21
Issue :
5
Pages :
312-318
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 November 2011

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