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2.4.1.19: cyclomaltodextrin glucanotransferase

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

Word Map on EC 2.4.1.19

Reaction

alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranose
=
alpha-cyclodextrin
 +
alpha-D-glucose

Synonyms

1,4-alpha-D-glucopyranosyl transferase, Akrilex C cyclodextrin glycosyltransferase, alpha-1,4-glucan 4-glycosyltransferase, cyclizing, alpha-cgt, alpha-CGTase, alpha-cyclodextrin glucanotransferase, alpha-cyclodextrin glucosyltransferase, alpha-cyclodextrin glycosyltransferase, Bacillus macerans amylase, beta-CGTase, beta-cyclodextrin glucanotransferase, beta-cyclodextrin glucosyltransferase, beta-cyclodextrin glycosyltransferase, beta-cyclodextrinase, BMA, C-CGTase, CD glucanotransferase, CGT, CGT13, CGTase, cgtS, CGTse ET1, CGT_TK, cyclodextrin beta-glucanotransferase, cyclodextrin glucanotransferase, cyclodextrin glucosyltransferase, cyclodextrin glycosyl transferase, cyclodextrin glycosyltransferase, cyclodextrin-glycosyltransferase, cyclodextrinase, cyclomaltodextrin glucanyltransferase, cyclomaltodextrin glucotransferase, cyclomaltodextrin glycanotransferase, cyclomaltodextrin glycosyltransferase, gamma-CGTase, gamma-cyclodextrin glycosyltransferase, konchizaimu, M-CGTase, More, neutral-cyclodextrin glycosyltransferase, PFCGT, Toruzyme

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.19 cyclomaltodextrin glucanotransferase

pH Optimum

pH Optimum on EC 2.4.1.19 - cyclomaltodextrin glucanotransferase

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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
10.3
-
var. alkalophilus, ATCC 21783
4.5 - 4.7
4.5 - 5
-
ATCC 21783, crude enzyme, second pH optimum at 8.0-9.0
4.6
-
ATCC 21783 contains 3 isozymes, neutral, alkalic and acidic, possessing markedly different pH optima, 4.6, 7.0 and 9.5
5 - 5.5
-
-
5 - 5.7
5 - 6
5 - 6.5
-
strain B-4025
5.5 - 5.8
5.5 - 7
-
strain B-4018
5.5 - 8.5
-
-
5.9 - 6.5
-
the optimum pH for dextrinizing and cyclization activities of purified CGTases from both sources are similar around pH 6.5 and pH 5.9 respectively
6 - 6.5
-
strain BIO-13m
6 - 7
6 - 8
-
native enzyme
6.1 - 6.2
6.4
-
assay at
6.5 - 7
6.5 - 8
-
ATCC 39612/Ha3-3-2, cyclodextrin forming activity
6.5 - 8.5
-
-
7 - 8
-
pH optimum for gamma-cyclodextrin production
7.5 - 10.5
-
strain AL-6, cyclodextrin forming
7.5 - 8.5
-
var. alkalophilus ATCC 21783, second pH optimum at 4.5-4.7
8 - 10
-
gamma-cyclodextrin production, reaction with 10% starch
8 - 9
8.6
two maxima at pH 6.0 and pH 8.6
9 - 11
-
strain dependent
9.5
-
ATCC 21783 contains 3 isozymes, neutral, alkalic and acidic, possessing markedly different pH optima, 4.6, 7.0 and 9.5
additional information
-
the enzymes are more active in glycine/NaOH buffer compared with Na2HPO4/NaH2PO4 buffer at the same pH