منابع مشابه
Zinc transport proteins in plasma.
1. Both albumin and transferrin have been suggested as carriers of zinc in plasma. Their relative importance in Zn transport was therefore investigated as a preliminary to a study of the rates of passage of Zn through plasma. 2. The apparent log stability constant for Zn binding to human apotransferrin at pH 7.4 was estimated to be approximately 5.9 which is substantially lower than previous re...
متن کاملSevere zinc depletion of Escherichia coli: roles for high affinity zinc binding by ZinT, zinc transport and zinc-independent proteins.
Zinc ions play indispensable roles in biological chemistry. However, bacteria have an impressive ability to acquire Zn(2+) from the environment, making it exceptionally difficult to achieve Zn(2+) deficiency, and so a comprehensive understanding of the importance of Zn(2+) has not been attained. Reduction of the Zn(2+) content of Escherichia coli growth medium to 60 nm or less is reported here ...
متن کاملPlasma membrane microdomains regulate turnover of transport proteins in yeast
In this study, we investigate whether the stable segregation of proteins and lipids within the yeast plasma membrane serves a particular biological function. We show that 21 proteins cluster within or associate with the ergosterol-rich membrane compartment of Can1 (MCC). However, proteins of the endocytic machinery are excluded from MCC. In a screen, we identified 28 genes affecting MCC appeara...
متن کاملRoles of plasma lipid transfer proteins in reverse cholesterol transport.
Plasma lipid transfer proteins include plasma cholesteryl ester transfer protein (CETP) and phospholipid transfer protein (PLTP). Plasma CETP facilitates the transfer of cholesteryl ester (CE) from high-density lipoprotein (HDL) to apolipoprotein (apo) B-containing lipoproteins, and is a key protein in reverse cholesterol transport which protects vessel walls from atherosclerosis. The importanc...
متن کاملCirculation of plasma proteins: their transport to lymph.
As part of a study of protein turnover in diabetes (l), S36-labeled serum proteins were introduced intravenously into dogs, and the disappearance of the labeled proteins from the circulating plasma was followed for 7 or more days. The specific activity of serum protein in the recipient dogs decreased rapidly at first, but after 2 days it decreased at a much slower rate. This slow phase is consi...
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ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 1981
ISSN: 0007-1145,1475-2662
DOI: 10.1079/bjn19810014