glucose transporter

Facilitative glucose transporter, which is responsible for constitutive or basal glucose uptake. Has a very broad substrate specificity; can transport a wide range of aldoses including both pentoses and hexoses. Most important energy carrier of the brain: present at the blood-brain barrier and assures the energy-independent, facilitative transport of glucose into the brain. In association with BSG and NXNL1, promotes retinal cone survival by increasing glucose uptake into photoreceptors. SLC2A1 Protein, Human, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 15.2 kDa and the accession number is P11166.

Urate transporter, which may play a role in the urate reabsorption by proximal tubules. Does not transport glucose, fructose or galactose.

Facilitative glucose transporter, which is responsible for constitutive or basal glucose uptake. Has a very broad substrate specificity; can transport a wide range of aldoses including both pentoses and hexoses. Most important energy carrier of the brain: present at the blood-brain barrier and assures the energy-independent, facilitative transport of glucose into the brain. In association with BSG and NXNL1, promotes retinal cone survival by increasing glucose uptake into photoreceptors. SLC2A1 Protein, Rat, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 15.2 kDa and the accession number is P11167.

The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different set of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion. That Rab is mainly involved in the biosynthetic transport of proteins from the Golgi to the plasma membrane. Regulates, for instance, SLC2A4/GLUT4 glucose transporter-enriched vesicles delivery to the plasma membrane. In parallel, it regulates the transport of TLR4, a toll-like receptor to the plasma membrane and therefore may be important for innate immune response. Plays also a specific role in asymmetric protein transport to the plasma membrane. In neurons, it is involved in axonogenesis through regulation of vesicular membrane trafficking toward the axonal plasma membrane. In epithelial cells, it regulates transport from the Golgi to the basolateral membrane. May play a role in the basolateral recycling pathway and in phagosome maturation. May play a role in endoplasmic reticulum dynamics and morphology controlling tubulation along microtubules and tubules fusion. Together with LRRK2, RAB8A, and RILPL1, it regulates ciliogenesis. When phosphorylated by LRRK2 on Thr-73, it binds RILPL1 and inhibits ciliogenesis.

MMGT1 (Membrane Magnesium Transporter 1, also known as EMC5 and TMEM32) is a Protein Coding gene. 2 alternatively spliced human isoforms have been reported. The encoded protein belongs to the membrane magnesium transporter (TC 1.A.67) family which is a group of magnesium transporters that are part of the TOG superfamily. It mediates Mg(2+) transport. MMGT1 is described as having 335 amino acids and five TMSs with an N-terminal cleavage site and some phosphorylation sites. It is widely expressed in the thyroid, bone marrow, and other tissues. Diseases associated with MMGT1 include Cercarial Dermatitis. Among its related pathways are the Transport of glucose and other sugars, bile salts and organic acids, metal ions and amine compounds, and Miscellaneous transport and binding events.

HMGN3 belongs to the HMGN family and is expressed in the kidney, lung, pancreas, testis, skeletal muscle, heart, thyroid gland, pituitary gland, prostate, and uterus. Members of the HMGN family bind to nucleosomes without any specificity for the underlying DNA sequence. They affect the global and local structure of chromatin, as well as the levels of histone modifications, and thus play a role in epigenetic regulation of gene expression. HMGN3 regulates the expression of the glucose transporter SLC2A2 by binding specifically to its promoter region and recruiting PDX1 and additional transcription factors. It also regulates the expression of SLC6A9, a glycine transporter that regulates the glycine concentration in synaptic junctions in the central nervous system, by binding to its transcription start site. Both insulin and glucagon levels can be affected by HMGN3. HMGN3 may play a role in ocular development and astrocyte function. It also modulates the expression of pancreatic genes involved in insulin secretion.

Afamin is an 87 kDa glycoprotein with five predicted N-glycosylation sites. Afamin's glycan abundance contributes to conformational and chemical inhomogeneity presenting great challenges for molecular structure determination. Afamin, a human plasma glycoprotein and putative transporter of hydrophobic molecules, has been shown to act as extracellular chaperone for poorly soluble, acylated Wnt proteins, forming a stable, soluble complex with functioning Wnt proteins. The 2.1-Å crystal structure of glycosylated human afamin reveals an almost exclusively hydrophobic binding cleft capable of harboring large hydrophobic moieties. Afamin plays a role in anti-apoptotic cellular processes related to oxidative stress and is associated with insulin resistance and other features of metabolic syndrome. Afamin may serve as a new early biomarker for pathological glucose metabolism during pregnancy. And first trimester screening for pre-eclampsia could be provided by a combination of afamin and placental bed vascularization. Moreover, the combination of first trimester serum afamin levels with BMI could provide a possible screening for gestational diabetes mellitus.

Hydrolyzes glucose-6-phosphate to glucose in the endoplasmic reticulum. Forms with the glucose-6-phosphate transporter (SLC37A4/G6PT) the complex responsible for glucose production in the terminal step of glycogenolysis and gluconeogenesis. Hence, it is the key enzyme in homeostatic regulation of blood glucose levels. G6PC Protein, Human, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 17.1 kDa and the accession number is P35575.

Hydrolyzes glucose-6-phosphate to glucose in the endoplasmic reticulum. Forms with the glucose-6-phosphate transporter (SLC37A4/G6PT) the complex responsible for glucose production in the terminal step of glycogenolysis and gluconeogenesis. Hence, it is the key enzyme in homeostatic regulation of blood glucose levels. G6PC Protein, Human, Recombinant (His) is expressed in yeast with C-6xHis tag. The predicted molecular weight is 5.6 kDa and the accession number is P35575.

Sodium-dependent glucose transporter. Has a Na(+) to glucose coupling ratio of 1:1.; Efficient substrate transport in mammalian kidney is provided by the concerted action of a low affinity high capacity and a high affinity low capacity Na(+)/glucose cotransporter arranged in series along kidney proximal tubules.