Any feedback?
Please rate this page
(all_enzymes.php)
(0/150)

BRENDA support

5.3.1.4: L-arabinose isomerase

This is an abbreviated version!
For detailed information about L-arabinose isomerase, go to the full flat file.

Word Map on EC 5.3.1.4

Reaction

beta-L-arabinopyranose
=
L-ribulose

Synonyms

AI, AraA, arabinose isomerase, D-galactose isomerase, ECAI, gali 152, gali 153, GSAI, GSAI 152, GSAI 153, Isomerase, L-arabinose, L-AI, L-AI NC8, L-AI US100, L-arabinose aldose-ketose-isomerase, L-arabinose isomerase, L-arabinose isomerase 1, L-arabinose isomerase 2, L-arabinose ketol-isomerase, pL 151, pL 152, pL 153, pL151, TNAI

ECTree

     5 Isomerases
         5.3 Intramolecular oxidoreductases
             5.3.1 Interconverting aldoses and ketoses, and related compounds
                5.3.1.4 L-arabinose isomerase

pH Range

pH Range on EC 5.3.1.4 - L-arabinose isomerase

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
3 - 8
-
the enzyme preserves 85%, 89% and 95% at pH 3.5, 4 and 4.5, respectively, and more than 80% of its activity in the pH range from pH 3.0 to 8.0
5 - 8.5
-
the enzyme exhibits 82% and 65% of its maximum activity at pH 6.0 and 5.0 respectively and maintains more than 80% activity at pH values ranging from 6.0 to 8.5
5 - 9
5 - 9.5
very minimal activity when the pH either drops below 5.0 or increases to above 9.5
5.2 - 8
more than 50% of the maximal activity
6
the enzyme exhibits 83% of its maximal activity at pH 6.0
6 - 10
Halalkalibacterium halodurans
-
-
6 - 7.5
over 90% of maximal activity at pH 6.0, maximal activity at pH 7.5
6 - 8
-
the enzyme retains 90% of its maximum activity at pH 6.0 and shows about 75% activity at pH 8.0. Below pH 6.0 and above pH 8.0 the activity decreases drastically
6 - 9
6.5 - 9
-
the activity of the free enzyme remains about 80% between pH 6.5 and 9.0, while the activity remains above 80% between pH 5.5 and 8.0 in case of the immobilized enzyme
7 - 9
7 - 9.5
the enzyme is not active below pH 7.0, the relative activity is less than 50% below pH 9.5
7.5 - 8.5
7.5 - 9
more than 75% of maximum activity
8 - 9
more than 90% of maximum activity