The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)



Gene Review

GSR2  -  glutamine synthetase

Arabidopsis thaliana

Synonyms: ATGSR2, F15E12.14, F15E12_14, GLN1;2, GLUTAMINE SYNTHETASE, ...
Welcome! If you are familiar with the subject of this article, you can contribute to this open access knowledge base by deleting incorrect information, restructuring or completely rewriting any text. Read more.

High impact information on ATGSR2

  • GLN1;2 was the only isoenzyme significantly up-regulated by ammonium, which correlated with the rapid increase in total GS1 protein [1].
  • GLN1;2 was localized in the vasculature and exhibited low affinities to ammonium (Km = 2450 +/- 150 microm) and glutamate (Km = 3.8 +/- 0.2 mm) [1].
  • Other markers of natural senescence, SAG12, SAG19, MT1 (metallothionein), and Atgsr2 (glutamine synthetase), did not show enhanced transcript accumulation [2].
  • Four distinct GS cDNA clones, lambda Atgsl1, lambda Atgsr1, lambda Atgsr2 and lambda Atkb6 were isolated and characterized [3].


  1. Kinetic properties and ammonium-dependent regulation of cytosolic isoenzymes of glutamine synthetase in Arabidopsis. Ishiyama, K., Inoue, E., Watanabe-Takahashi, A., Obara, M., Yamaya, T., Takahashi, H. J. Biol. Chem. (2004) [Pubmed]
  2. Senescence-associated gene expression during ozone-induced leaf senescence in Arabidopsis. Miller, J.D., Arteca, R.N., Pell, E.J. Plant Physiol. (1999) [Pubmed]
  3. The glutamine synthetase gene family of Arabidopsis thaliana: light-regulation and differential expression in leaves, roots and seeds. Peterman, T.K., Goodman, H.M. Mol. Gen. Genet. (1991) [Pubmed]
WikiGenes - Universities