Milk lipoprotein membranes and their imperative enzymes.
There are two main sources of lipoprotein membranes in milk: the relatively well-defined milk fat globule membrane (MFGM) that covers the milk fat globules, and the much less attended lipoprotein source, in the form of vesicles floating in the milk serum. We challenge the common view that the milk serum lipoprotein membrane (MSLM) is secondly derived from the MFGM and present a different view suggesting that it represents Golgi-derived vesicles that are released intact to milk. The potential role of enzymes attached to the MSLM and MFGM is considered in detail for select ubiquitously expressed enzymes.
Silanikove
Nissim
N
Agricultural Research Organization, Institute of Animal Science, Bet Dagan, 50-250, Israel. nsilanik@agri.huji.ac.il
D000469:Alkaline Phosphatase / Q000378:metabolism; D000818:Animals; D006801:Humans; D007425:Intracellular Membranes / Q000201:enzymology* / Q000378:metabolism*; D008074:Lipoproteins / Q000378:metabolism*; D008892:Milk / Q000737:chemistry / Q000166:cytology* / Q000201:enzymology*; D009711:Nucleotides / Q000378:metabolism; D010088:Oxidoreductases / Q000378:metabolism
D008074:Lipoproteins; D009711:Nucleotides; D010088:Oxidoreductases; D000469:Alkaline Phosphatase