نتایج جستجو برای: alpha lactalbumin
تعداد نتایج: 202758 فیلتر نتایج به سال:
The aim of the present study was to investigate the whey proteins profile of raw donkey’s milk from an autochthonous Domestic Balkan donkey breed during the lactation period from 45 to 200 days. The following parameters were determined: whey proteins, alpha-lactalbumin, beta-lactoglobulin, lysozyme and lactoferrin. A technique use for determination of the protein profile is chip-based separatio...
Nutrition influences sleep. Drinking a glass of warm milk in the evening has been a long term tradition in several cultures. Although most of these reports are anecdotal, several milk components have been associated with sleep, such as tryptophan, bioactive peptides and magnesium. The widest researched dairy component in relation to sleep is tryptophan. Tryptophan is the precursor of serotonin....
To investigate the ultrastructural mechanisms of acute microvessel hyperpermeability by vascular endothelial growth factor (VEGF), we combined a mathematical model (J Biomech Eng 116: 502-513, 1994) with experimental data of the effect of VEGF on microvessel hydraulic conductivity (L(p)) and permeability of various-sized solutes. We examined the effect of VEGF on microvessel permeability to a s...
Serum antibodies to four common food antigens, three cows' milk proteins (casein, alpha-lactalbumin and beta-lactoglobulin) and ovalbumin, were investigated in 21 children with atopic dermatitis (aged 3 months to 3 years) and in 15 age-matched healthy controls. Specific IgE was measured by radioallergosorbent test; an ELISA was developed to detect specific IgG, IgG subclasses and IgA. Specific ...
The CCAAT-displacement protein (CDP) has been implicated in developmental and cell-type-specific regulation of many cellular and viral genes. We previously have shown that CDP represses mouse mammary tumor virus (MMTV) transcription in tissue culture cells. Since CDP-binding activity for the MMTV long terminal repeat declines during mammary development, we tested whether binding mutations could...
beta1,4-galactosyltransferase T1 (beta4Gal-T1, EC 2.4.1.90/38), a Golgi resident membrane-bound enzyme, transfers galactose from uridine diphosphogalactose to the terminal beta-N-acetylglucosamine residues forming the poly-N-acetyllactosamine core structures present in glycoproteins and glycosphingolipids. In mammals, beta4Gal-T1 binds to alpha-lactalbumin, a protein that is structurally homolo...
The calcium binding protein alpha-lactalbumin folds via a molten globule intermediate. Calcium does not bind strongly to the unfolded protein or the molten globule, but does bind to the transition state between the molten globule and the native protein. Of interest are the structures formed in the transition state that promote calcium binding. To study the importance of local secondary structur...
The soluble galactosyltransferase of human plasma catalysed the transfer of galactose from UDP-galactose to high- and low-molecular-weight derivatives of N-acetylglucosamine, forming a beta-1-4 linkage. The enzyme was purified by using (NH4)2SO4 precipitation and affinity chromatography on an alpha-lactalbumin-Sepharose column. The galactosyltransferase was maximally bound to this column in the...
An increasing population and their increased demand for high-protein diets will require dramatic changes in the food industry, as limited resources and environmental issues will make animal derived foods and proteins, gradually more unsustainable to produce. To explore alternatives to animal derived proteins, an economic model was built around the genome-scale metabolic network of E. coli to st...
1. Lactogenesis was initiated in pregnant rats by ovariectomy, thereby causing progesterone withdrawal, after which the mammary tissue was analysed for contents of enzymes and metabolites concerned with the biosynthesis of lactose. 2. Lactose synthesis increased about 126-fold with little or no accompanying change in the contents of most metabolic intermediates or in the adenine nucleotide ener...
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