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Information on EC 3.2.1.14 - chitinase

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EC Tree
     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.14 chitinase
IUBMB Comments
The enzyme binds to chitin and randomly cleaves glycosidic linkages in chitin and chitodextrins in a non-processive mode, generating chitooligosaccharides and free ends on which exo-chitinases and exo-chitodextrinases can act. Activity is greatly stimulated in the presence of EC 1.14.99.53, lytic chitin monoxygenase, which attacks the crystalline structure of chitin and makes the polymer more accesible to the chitinase. cf. EC 3.2.1.202, endo-chitodextrinase.
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This record set is specific for:
UNIPROT: Q1JUL0
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Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
chitinase, chitotriosidase, endochitinase, antifreeze protein, chit1, amcase, chitinase a, exochitinase, acidic mammalian chitinase, class i chitinase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
active phase-associated protein II
-
1,4-beta-poly-N-acetylglucosaminidase
-
-
-
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beta-1,4-poly-N-acetyl glucosamidinase
-
-
-
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CF-AG
-
-
-
-
CF-antigen
-
-
-
-
CHI-26
-
-
-
-
CHIT 1A
-
-
-
-
CHIT 1B
-
-
-
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chitodextrinase-N-
-
-
-
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Complement-fixation antigen
-
-
-
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endochitinase
-
-
-
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MF1 antigen
-
-
-
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poly-beta-glucosaminidase
-
-
-
-
UDA
-
-
-
-
additional information
the isozyme belongs to the glycoside hydrolase family 48, GH48
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
hydrolysis of O-glycosyl bond
-
-
-
-
PATHWAY SOURCE
PATHWAYS
-
-, -, -
SYSTEMATIC NAME
IUBMB Comments
(1->4)-2-acetamido-2-deoxy-beta-D-glucan glycanohydrolase
The enzyme binds to chitin and randomly cleaves glycosidic linkages in chitin and chitodextrins in a non-processive mode, generating chitooligosaccharides and free ends on which exo-chitinases and exo-chitodextrinases can act. Activity is greatly stimulated in the presence of EC 1.14.99.53, lytic chitin monoxygenase, which attacks the crystalline structure of chitin and makes the polymer more accesible to the chitinase. cf. EC 3.2.1.202, endo-chitodextrinase.
CAS REGISTRY NUMBER
COMMENTARY hide
9001-06-3
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
chitin + H2O
?
show the reaction diagram
colloidal chitin
-
-
?
additional information
?
-
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
additional information
?
-
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
isozyme APAP2; leaf beetle, isozyme APAP2
SwissProt
Manually annotated by BRENDA team
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
additional information
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
Q1JUL0_GASAT
642
0
71856
TrEMBL
-
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
isozyme APAP2, DNA and amino acid sequence determination and analysis, phylogenetic tree, expression in female Gastrophysa atrocyanea beetles by microinjection in the intersegmental membrane between metathorax and first abdominal segment
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Fujita, K.; Shimomura, K.; Yamamoto, K.i.; Yamashita, T.; Suzuki, K.
A chitinase structurally related to the glycoside hydrolase family 48 is indispensable for the hormonally induced diapause termination in a beetle
Biochem. Biophys. Res. Commun.
345
502-507
2006
Gastrophysa atrocyanea (Q1JUL0), Gastrophysa atrocyanea (Q1JUL1), Gastrophysa atrocyanea
Manually annotated by BRENDA team