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Gene Review

Gfpt2  -  glutamine fructose-6-phosphate transaminase 2

Mus musculus

Synonyms: AI480523, D-fructose-6-phosphate amidotransferase 2, GFAT 2, GFAT2, Glutamine:fructose-6-phosphate amidotransferase 2, ...
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Disease relevance of Gfpt2


High impact information on Gfpt2

  • A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity [2].
  • Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity [2].
  • GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation [2].
  • The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag [2].
  • Transfection experiments showed that the 5'-flanking region between -2462 to +38 relative to the transcription start site of the GFAT2 gene drives transcription in NIH3T3 cells and that the fragment from -141 to -9 has the highest transcription activity [3].

Biological context of Gfpt2

  • When serine 202 of GFAT2 was mutated to an alanine, the enzyme not only became resistant to phosphorylation, but also the increase in activity in response to PKA also was blocked [2].
  • Both the human and the mouse GFAT2 proteins deduced from their open reading frame sequences are composed of 682 amino acids of approximately 77.0 kDa [1].

Anatomical context of Gfpt2


Other interactions of Gfpt2

  • Reporter assays using deletion and mutant variants suggested that the Sp1 sites at positions -83 to -78 and -22 to -17 both play an important role in the basal promoter activity of the mouse GFAT2 gene [3].

Analytical, diagnostic and therapeutic context of Gfpt2

  • Northern blot analysis using probe specific to human GFAT1 or GFAT2 showed that major transcripts were approximately 3.0 kb in both the human GFAT subtypes [1].


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