๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The temperature dependence of the exchange transport of glucose in human erythrocytes

โœ Scribed by L. Lacko; B. Wittke; P. Geck


Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
343 KB
Volume
82
Category
Article
ISSN
0021-9541

No coin nor oath required. For personal study only.

โœฆ Synopsis


Abstract

The temperature dependence of the uptake of glucose by exchange transport is investigated at two pH values (7.5 and 5). The Arrhenius's energy of activation, the heat of activation, the free energy of activation and the entropy of activation are calculated. The parameters are different at pH 7.5 and 5. For both pH levels the heat of activation and the entropy of activation change abruptly at 20ยฐC. This finding leads us to assume that at this temperature a change in the structure of the membrane takes place.


๐Ÿ“œ SIMILAR VOLUMES


The pH dependence of exchange transport
โœ L. Lacko; B. Wittke; P. Geck ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 370 KB ๐Ÿ‘ 1 views

## Abstract In glucose exchange transport into red blood cells the rate of glucose uptake showed two pH dependent maxima, with the larger at approximately pH 7.5 and the smaller one at pH 3. In the studied pH range the relation between the rate of glucose uptake and the substrate concentration fol

The pH and temperature dependence of the
โœ L. Lacko; B. Wittke; I. Lacko ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 426 KB ๐Ÿ‘ 1 views

## Abstract The thermodynamic parameters ฮ”Hยฐ, ฮ”Fยฐ, ฮ”Sยฐ and the pH dependence of the interaction between steroids and the glucose carrier in human erythrocytes have been studied. The results indicate that, according to the structure of the steroids, hydrophilic as well as hydrophobic bonds can be in

Characterization of the glucose transpor
โœ Sogin, David C. ;Hinkle, Peter C. ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Wiley (John Wiley & Sons) ๐ŸŒ English โš– 366 KB

The D-glucose transporter from human erythrocytes has been purified and reconstituted by Kasahara and Hinkle (J Biol Chem 252:7394-7390). Using a similar purification scheme, we have isolated the protein with 65% of the extracted phospholipid at a lipid-protein ratio of 14: 1 by weight. The KD (0.14

Interaction of alcohols with the transpo
โœ L. Lacko; B. Wittkeand; P. Geck ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 460 KB ๐Ÿ‘ 1 views

## Abstract Alcohols inhibit the exchange transport of glucose in human erythrocytes. Comparing the inhibition by monohydroxyโ€alcohols, which have different distribution coefficients between medium and membrane, shows that the degree of inhibition depends mainly upon the concentration of the alcoho

Inhibition of glucose transport in human
โœ L. Lacko; B. Wittke; I. Lacko ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 206 KB ๐Ÿ‘ 1 views

## Abstract The inhibition of glucose transport by the nonโ€ionizable localโ€anesthetic benzylalcohol is of the mixed type and independent of pH. The affinity of benzylalcohol to the free carrier is about three times larger than that to the carrierโ€glucose complex.

Interaction of local anesthetics with th
โœ L. Lacko; B. Wittke; I. Lacko ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 452 KB ๐Ÿ‘ 1 views

## Abstract Local anesthetics inhibit the exchange transport of glucose in human erythrocytes. All compounds tested showed a competitive inhibition except lidocaine and baycaine causing a nonโ€competitive one. Moreover the transport system can bind two inhibitor molecules to one transport site as de