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3.5.1.2: glutaminase

This is an abbreviated version!
For detailed information about glutaminase, go to the full flat file.

Word Map on EC 3.5.1.2

Reaction

L-glutamine
+
H2O
=
L-glutamate
+
NH3

Synonyms

AnsB, AoGls, GA, GAB, GAC, GahB, GLA, GLNase, GLS, GLS1, GLS2, GlsA, glutaminase, glutaminase 1, glutaminase 2, glutaminase A, glutaminase B, glutaminase C, glutaminase I, glutaminase K, glutaminase L, glutaminase-1, glutaminase-2, glutaminase-B, glutamine amidohydrolase, glutamine aminohydrolase, glutamine deamidating enzyme, K-glutaminase, KAG, KGA, kidney-type glutaminase, kidney-type-glutaminase, L-glutaminase, L-glutamine amidohydrolase, LAG, LGA, liver-type glitaminase, liver-type glutaminase, Mglu, Micrococcus glutaminase Mglu, Micrococcus luteus K-3-type glutaminase, mitochondrial glutaminase, N-PAG, neuroblastoma glutaminase, neuroblastoma PAG, Nit 2, nitrilase 2, omega-amidase, PAG, PDX2, phosphate activated glutaminase, phosphate-activated glutaminase, phosphate-activated L-glutamine amidohydrolase, salt-tolerant glutaminase, YaaE

ECTree

     3 Hydrolases
         3.5 Acting on carbon-nitrogen bonds, other than peptide bonds
             3.5.1 In linear amides
                3.5.1.2 glutaminase

General Stability

General Stability on EC 3.5.1.2 - glutaminase

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
enzyme shows high instability especially during the gel filtration step. Addition of 10% ethylene glycol as stabilizer
-
freezing and thawing produces a substantial loss of activity
-
significant loss of activity upon freezing at -20°C and -80°C in presence and absence of 20% glycerol
-
sodium borate is the most effective stabilizing agent against cold inactivation
-
stabilized by MgCl2 and glycerol in addition to NaCl
-
the activity of immobilized enzyme immobilized on polyacrylic acid-Cu2+-matrix decreases 1.5fold compared to the free enzyme
-
the enzyme shows high activity (68%) in the presence of 20% (w/v) NaCl
-