Literature summary extracted from
Nakamura, T.; Mine, S.; Hagihara, Y.; Ishikawa, K.; Ikegami, T.; Uegaki, K.
Tertiary structure and carbohydrate recognition by the chitin-binding domain of a hyperthermophilic chitinase from Pyrococcus furiosus (2008), J. Mol. Biol., 381, 670-680.
Crystallization (Commentary)
EC Number |
Crystallization (Comment) |
Organism |
---|
3.2.1.14 |
wild-type and mutant ChBD2 domains, X-ray diffraction structure determination and analysis at 1.7-1.8 A resolution |
Pyrococcus furiosus |
Protein Variants
EC Number |
Protein Variants |
Comment |
Organism |
---|
3.2.1.14 |
E279A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
E279T/D281N |
site-directed mutagenesis of the ChBD2 domain residues, the mutant shows altered substrate binding affinity and specificity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
I337A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
N272A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
N327A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
N339A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
S306A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
S309A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
T283A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
W274A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
W308A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
3.2.1.14 |
W326A |
site-directed mutagenesis of the ChBD2 domain residue, the mutant shows altered substrate binding affinity compared to the wild-type enzyme domain |
Pyrococcus furiosus |
Natural Substrates/ Products (Substrates)
EC Number |
Natural Substrates |
Organism |
Comment (Nat. Sub.) |
Natural Products |
Comment (Nat. Pro.) |
Rev. |
Reac. |
---|
3.2.1.14 |
chitin + H2O |
Pyrococcus furiosus |
the chitinase is a hyperthermophilic glycosidase that effectively hydrolyzes both alpha and beta crystalline chitins, carbohydrate recognition by the chitin-binding domain and substrate binding structure, overview |
? |
- |
? |
|
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
3.2.1.14 |
Pyrococcus furiosus |
- |
- |
- |
Substrates and Products (Substrate)
EC Number |
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
---|
3.2.1.14 |
chitin + H2O |
the chitinase is a hyperthermophilic glycosidase that effectively hydrolyzes both alpha and beta crystalline chitins, carbohydrate recognition by the chitin-binding domain and substrate binding structure, overview |
Pyrococcus furiosus |
? |
- |
? |
|
3.2.1.14 |
chitin + H2O |
the surface resiudes Trp274, Trp308 and Trp326 flanked by acidic residues Glu279 and Asp281 are involved in chitin binding |
Pyrococcus furiosus |
? |
- |
? |
|
Subunits
EC Number |
Subunits |
Comment |
Organism |
---|
3.2.1.14 |
More |
the chitinase has unique structural features and contains two catalytic domains AD1 and AD2 and two chitin-binding domains ChBD1 and ChBD2. ChBD2 consists of two four-stranded beta-sheets and is composed of a typical beta-sandwich architecture, tertiary structure by NMR and crystal structure determinations, overview |
Pyrococcus furiosus |
Synonyms
EC Number |
Synonyms |
Comment |
Organism |
---|
3.2.1.14 |
More |
the chitin-binding domain 2 belongs to the carbohydrate binding module 2 family of proteins |
Pyrococcus furiosus |
Temperature Stability [°C]
EC Number |
Temperature Stability Minimum [°C] |
Temperature Stability Maximum [°C] |
Comment |
Organism |
---|
3.2.1.14 |
25 |
85 |
thermal stability of wild-type and mutant enzymes, overview |
Pyrococcus furiosus |