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Literature summary extracted from

  • Hammarstrom, A.; Soliman, A.; Nordlund, S.
    Low- and high-activity forms of glutamine synthetase from Rhodospirillum rubrum: sensitivity to feed-back effectors and activation of the low-activity form (1991), Biochim. Biophys. Acta, 1080, 259-263.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
6.3.1.2 Ala
-
 Rhodospirillum rubrum
6.3.1.2 AMP
-
 Rhodospirillum rubrum
6.3.1.2 CTP
-
 Rhodospirillum rubrum
6.3.1.2 Gly
-
 Rhodospirillum rubrum
6.3.1.2 His
-
 Rhodospirillum rubrum
6.3.1.2 UTP
-
 Rhodospirillum rubrum

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
6.3.1.2 Mn2+ activity of the low-activity form is higher than that of the high-activity form in the Mn2+-dependent biosynthetic assay Rhodospirillum rubrum

Organism

EC Number Organism UniProt Comment Textmining
6.3.1.2 Rhodospirillum rubrum
-
 two enzyme forms: low-activity form and high-activity form, depending on the concentration of combined nitrogen in the medium before harvest
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
6.3.1.2 ATP + L-Glu + NH4+
-
 Rhodospirillum rubrum ADP + phosphate + L-Gln
-
 ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
6.3.1.2 7.2
-
 low activity and high activity enzyme form, Mn2+-activated Rhodospirillum rubrum
6.3.1.2 7.4
-
 low activity and high activity enzyme form, Mg2+-activated Rhodospirillum rubrum