glucokinase

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glucokinase

[¦glü·kō′kī‚nās]
(biochemistry)
An enzyme that catalyzes the phosphorylation ofD-glucose to glucose-6-phosphate.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
GCK gene mutations are a common cause of childhood-onset MODY (maturity-onset diabetes of the young) in Turkey.
The glucose injection was associated with the change of 5-methylcytosine hydroxylation profile in the promoter of mouse hepatic Gck promoter (40).
Table 1 One copy of the variant c.698G>A (p.Cys233Tyr) Paternal mutation in exon 7 of the GCK gene (Refseq accession number NM_000162) Frameshift mutation c.864delGinsCC, or Maternal mutation c.864G>C and c.872dupC, (p.Gly292ArgfsX25) in exon 4 of the HNF1a gene (Refseq accession number NM_000545) Fetal mutation c.[92G>A] (p.[(Gly31Asp)]1 Table 2: MODY subtypes and pregnancy implications (4 most common subtypes in descending order of frequency).
There is a positive correlation between gck and igf-1r, as well as between tg and igfbp-1.
(a) Relative mRNA levels of Pdkl, Pgkl, Glutl, Gck, and Pkm2 in the peritoneal macrophages isolated from the WT mice and Lysm HIF1[alpha]lsl mice for 6 h.
Quantitative PCR analysis indicated that the mRNA expression quantities of insulin, Gcg, Gck, GLUT2, Irs1, and Irs2 in insulin-producing cells induced from ADSCs were 0.69 times (P < 0.05), 2.12 times (P < 0.01), 1.15 times (P > 0.05), 0.58 times (P < 0.01), 1.38 times (P < 0.01), and 0.83 times (P < 0.01) those in PASCs, respectively (Figure 5).
The proximal sensing and metabolic signal generation includes [69]: (1) Glucose equilibrates rapidly across the [beta]-cell membrane due to expression of the high capacity, low-affinity glucose-transporter-2 (GLUT-2), (2) after glucose has entered the [beta]-cells, it is phosphorylated to glucose-6-phosphate by the high [K.sub.M] GCK, which constitutes the flux determining step of glycolysis and is considered as glucose sensor, (3) once, glucose is phosphorylated, glucose is metabolized by glycolysis to pyruvate, nicotinamide adenine dinucleotide (NADH) and adenosine triphosphate (ATP) [70-72].
Down-regulation of Gck, G6pase, Glut2, and Pepck expression was found in the livers of TCDF-treated [Ahr.sup.+/+] mice (see Supplemental Material, Figure S10B).
He cited what he called "a great study" by investigators at the University of Exeter (England), who showed that veryfew patients with glucokinase maturity-onset diabetes of the young (GCK MODY) develop micro- or macro-vascular complications.
He cited what he called "a great study" by investigators at the University of Exeter (England), who showed that very, very few patients with glucokinase maturity-onset diabetes of the young (GCK MODY) develop micro- or macrovascular complications.
The derivative marketplace CME Group (NASDAQ: CME) said it has launched physically delivered gold kilo futures contracts (contract code GCK) to begin trading on January 26, 2015, pending all regulatory review periods.