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Mutations at calcium binding site III in cyclodextrin glycosyltransferase improve β-cyclodextrin specificity

International Journal of Biological Macromolecules, 2015
Cyclodextrin glycosyltransferases (CGTases, EC 2.4.1.19) are industrially important enzymes that produce cyclodextrins from starch by intramolecular transglycosylation. In this study, the effects of amino acid residue at position 315 in calcium binding site III (CaIII) on product specificity of CGTase were investigated by replacing Ala315 in the CGTase
Xiaofeng Ban   +6 more
openaire   +2 more sources

Structure of cyclodextrin glycosyltransferase refined at 2.0 Å resolution

Journal of Molecular Biology, 1991
The previously reported structural model of cyclodextrin glycosyltransferase (EC 2.4.1.19) from Bacillus circulans has been improved. For this purpose the known sequence was built into an electron density map established by multiple isomorphous replacement and subsequent solvent-flattening at 2.5 A resolution.
C, Klein, G E, Schulz
openaire   +2 more sources

Mutations at subsite −3 in cyclodextrin glycosyltransferase from Paenibacillus macerans enhancing α-cyclodextrin specificity

Applied Microbiology and Biotechnology, 2009
A major disadvantage of cyclodextrin production is the limited cyclodextrin product specificity of cyclodextrin glycosyltransferase (CGTase). Here, we described mutations of Asp372 and Tyr89 at subsite -3 in the CGTase from Paenibacillus macerans strain JFB05-01.
Zhaofeng, Li   +7 more
openaire   +2 more sources

Mutations of Lysine 47 in Cyclodextrin Glycosyltransferase from Paenibacillus macerans Enhance β-Cyclodextrin Specificity

Journal of Agricultural and Food Chemistry, 2009
The nature of amino acid residue 47 shows a clear discrimination between the different groups of cyclodextrin glycosyltransferase (CGTase). The effects of amino acid side chain at position 47 on cyclodextrin product specificity were investigated by replacing Lys47 in the CGTase from Paenibacillus macerans strain JFB05-01 with arginine, histidine ...
Zhao-Feng, Li   +7 more
openaire   +2 more sources

Rational design of cyclodextrin glycosyltransferase from Bacillus circulans strain 251 to increase α-cyclodextrin production

Journal of Molecular Biology, 2000
Cyclodextrin glycosyltransferases (CGTase) (EC 2.4.1.19) are extracellular bacterial enzymes that generate cyclodextrins from starch. All known CGTases produce mixtures of alpha, beta, and gamma-cyclodextrins. A maltononaose inhibitor bound to the active site of the CGTase from Bacillus circulans strain 251 revealed sugar binding subsites, distant from
Veen, Bart A. van der   +6 more
openaire   +3 more sources

Synthesis of alkyl glycosides from cyclodextrin using cyclodextrin glycosyltransferase from Paenibacillus sp. RB01

Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2010
Alkyl glycosides have potential use as biodegradable detergents due to their high surface activity with low toxicity. Recent progress in the application of enzymes to the preparation of these surface-active compounds demonstrates the advantages to the chemical synthesis.
Kwanjai Chotipanang   +2 more
openaire   +1 more source

Immobilization of β-cyclodextrin glycosyltransferase on gelatin enhances β-cyclodextrin production

Process Biochemistry, 2022
Shuangdi Chen   +6 more
openaire   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce   +2 more
exaly  

Genetic enhancement of Bacillus cyclodextrin glycosyltransferase production

Egyptian Journal of Chemistry, 2022
Abd El-Nasser Khattab   +3 more
openaire   +1 more source

Cyclodextrin Glycosyltransferase

2002
Lubbert Dijkhuizen, Bart van der Veen
openaire   +1 more source

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