cómo se transporta la glucosa través de la membrana celular? diana díaz hernández, luis carlos burgos herrera de la célula para su ingreso requiere una. RESUMEN El transporte de la glucosa a través de la membrana plasmática de a sodio (SGLT) y los sistemas facilitadores del transporte de glucosa (GLUT). Se han descrito dos sistemas de transporte de glucosa y de otros monosacáridos : y los transportadores de glucosa llamados GLUT (glucosa transporters).

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Abundant during stationary phase, sporulation and low glucose conditions. Am J Nephrol ;4: Is a bidirectional transporrtadores, allowing glucose dd flow in 2 directions.

Defective glucose transport across the blood-brain barrier as a cause of persistent hypoglcyrrachia, seizures, and developmental delay. Mol Genet ; Expressed mostly in neurons where it is believed to be the main glucose transporter isoformand in the placenta. Glucose, the main source of energy in the cell, is transported in most cells through facilitated diffusion, by the transporter proteins present in the plasma membrane.

From Wikipedia, the free encyclopedia. Structure and function of mammalian facultative sugar transporters.

It is also present in the basolateral membrane of the small intestine epithelium.

Cloning sequence, and expression of the pantothenate permease panF gene of Escherichia coli. Machado UF, Saito M.

Transportador de glucosa – Viquipèdia, l’enciclopèdia lliure

GLUT1 expression is upregulated in many tumors. Most members of classes II and III have been identified recently in homology searches of EST databases and the sequence information provided by the various genome projects. Fructose transporter in human spermatozoa and small intestine is GLUT5.


Annu Gulcosa Biochem ; Binding of glucose to one site provokes a conformational change associated with transport, and releases glucose to the other side of the membrane.

Proceedings of a Symposium held in Prague, August 22—27, Multiple roles of phosphatidylinositol 3-kinase in regulation of glucose transport, amino acid transport, and glucose transporters in L6 skeletal muscle cells.

In the adult, it is expressed at highest levels in erythrocytes and also in the endothelial cells of barrier tissues such as the blood—brain barrier. These studies have revealed that, in DM2, the GLUT4 content is drastically reduced, playing an important role in insulin resistance.

Is widely distributed in fetal tissues. Diabetes Care ; J Biol Chem ; A multifaceted syndrome responsible for NIDDM, obesity, hypertension, dyslipidemia, and atherosclerotic cardiovascular disease. Nature Lond ; Molecular physiology of glucose transporters.

Glucose transporter

Close genetic linkage between HLA and renal glycosuria. Jackowski S, Alix JH. Am J Physiol ; Bidirectionality is required in liver cells to uptake glucose for glycolysis and glygogenesis, and release of glucose during gluconeogenesis. Glucose transporters are a wide group of membrane proteins that facilitate the transport of glucose across the plasma membrane.

Retrieved from ” https: Nucleotide sequence of putP, the proline carrier of Escherichia coli K Half a century later this idea has turned glhcosa one of the most studied of all transporter proteins SGLT1the sodium—glucose cotransporter. Diabetes Care ; Loss of weight restores GLUT 4 content in insulin-sensitive tissues of monosodium glutamate-treated obese mice.


Transportadores de glucosa by Jose Rodriguez on Prezi

Sequence and structure of a human glucose transporter. Evidence for cytosolic sugar binding sites in erythrocytes”. GLUT proteins transport glucose and related hexoses according to a model of alternate conformation, [5] [6] [7] which predicts ed the transporter exposes a single substrate binding site toward either the outside or the inside of the cell.

Effect of the thermogenic agent BRL A. Wright and Eric Turk. Czech Academy of SciencesPrague,pp.

Because glucose is a vital source of energy for all life, these transporters are present in all phyla. Usually produced only in hepatocytesin fasting conditions, other tissues such as the intestines, muscles, brain, and kidneys are able to produce glucose following activation of gluconeogenesis.

Is expressed by renal tubular cells, liver cells and pancreatic hlucosa cells.

Vestri S, Machado UF. Decreased expression of glucose transporter in muscle from insulin-resistant patients. J Cell Biol ;

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