2.4.1.4: amylosucrase
This is an abbreviated version!
For detailed information about amylosucrase, go to the full flat file.
Word Map on EC 2.4.1.4
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2.4.1.4
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neisseria
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polysaccharea
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deinococcus
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geothermalis
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synthesis
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food industry
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biotechnology
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amylose-like
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transglucosylation
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waxy
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drug development
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turanose
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asases
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transglucosidase
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amylopectin
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c-myc-binding
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maltooligosaccharides
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glycoside-hydrolase
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trehalulose
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industry
- 2.4.1.4
- neisseria
- polysaccharea
-
deinococcus
- geothermalis
- synthesis
- food industry
- biotechnology
-
amylose-like
-
transglucosylation
-
waxy
- drug development
- turanose
- asases
- transglucosidase
- amylopectin
-
c-myc-binding
- maltooligosaccharides
-
glycoside-hydrolase
- trehalulose
- industry
Reaction
Synonyms
AaAS, ACAS, AmAS, AMS, Amy-1, ASASE, BtAS, CcAS, DGAS, DRAS, DRpAS, glucosyltransferase, sucrose-1,4-alpha-glucan, MaAS, MFAS, More, NPAS, NsAS, sucrose-glucan glucosyltransferase, SyAS
ECTree
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Crystallization
Crystallization on EC 2.4.1.4 - amylosucrase
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purified recombinant detagged DgAS, free and in complex with turanose, hanging drop vapor diffusion method, X-ray diffraction structure determination and analysis at 1.97-2.10 A resolution
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purified wild-type and mutant ligand-free enzyme, hanging drop vapour diffusion method, mixing of 0.0025 ml of 3.3 mg/ml protein in 50 mM HEPES, pH 7.0, 150 mM NaCl, 1 mM EDTA, and 1 mM DTT, with 0.0025 ml of reservoir solution containing 1 M sodium acetate, 0.1 M imidazole, 0.1 M LiCl, pH 6.5, 4°C, X-ray diffraction structure determination and analysis at 3.15 A resolution, modeling
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cocrystallization of E328Q mutant enzyme with maltoheptaose, X-ray structure at 2.2 A resolution
crystal structure of the acid/base catalyst mutant, E328Q, with a covalently bound glucopyranosyl moiety. The structure is refined to a resolution of 2.2 A and shows that binding of the covalent intermediate results in a backbone movement of 1 A around the location of the nucleophile, Asp286
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crystal structure of wild-type amylosucrase in complex with beta-D-glucose at 1.66 A, crystal structure of E328Q mutant enzyme in complex with sucrose at 2.0 A resolution
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purified recombinant detagged NpAS in complex with turanose, hanging drop vapor diffusion method, 1:1 v/v ratio of protein, containing 6 mg/ml in 20 mM Tris, pH 8.0, to precipitant solution containing 1.5 M sodium acetate, 0.1 M sodium cacodylate, pH 7.0, 2 weeks, X-ray diffraction structure determination and analysis at 1.85 A resolution
recombinant enzyme, equal amounts of 4 mg/ml enzyme in 150 mM NaCl, 50 mM Tris-HCl, pH 7.0, 1 mM EDTA and 1 mM dithiothreitol and reservoir solution consisting of 30% polyethylene glycol 6000 and 100 mM HEPES, pH 7.0, crystal structure at 1.4 A resolution
the mutant enzyme R226K/I228V/A289I/F290Y/E300I/V331T/Q437S/N439D/C445A is crystallized by hanging drop vapor diffusion method at 12°C