CAS: 34336-93-1; 6-Alpha-D-Glucopyranosyl Maltotriose

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6)α-cyclodextrinmaltosyl(α1-6)α-cyclodextrin 52H70O35C52H70O35 52H70O35C52H70O35

📜Maltotriose 在 3-吗啉丙磺酸,Disproportionating Enzyme From Bacillus Sp. Nrrl B-21195体系中,反应 160.0H,获得 4-O-<4-O-(6-O-α-D-Glucopyranosyl-α-D-Glucopyranosyl)-α-D-Glucopyranosyl>-D-Glucose
参考文献:A Synergistic Reaction Mechanism Of A Cycloalternan-Forming Enzyme And A D-Glucosyltransferase For The Production Of Cycloalternan In Bacillus Sp. Nrrl B-21195
标题:A Synergistic Reaction Mechanism Of A Cycloalternan-Forming Enzyme And A D-Glucosyltransferase For The Production Of Cycloalternan In Bacillus Sp. Nrrl B-21195
摘要:Cycloalternan-Forming Enzyme (Cafe) Was First Described As The Enzyme That Produced Cycloalternan From Alternan. In This Study,We Found That A Partially Purified Preparation Of Cafe Containing Two Proteins Catalyzed The Synthesis Of Cycloalternan From Maltooligosaccharides,Whereas The Purified Cafe Alone Was Unable To Do So. In Addition To The 117 Kda Cafe Itself,The Mixture Also Contained A 140 Kda Protein. The Latter Was Found To Be A Disproportionating Enzyme (De) That Catalyzes Transfer Of A D-Glucopyranosyl Residue From The Non-Reducing End Of One Maltooligosaccharide To The Non-Reducing End Of Another,Forming An Isomaltosyl Residue At The Non-Reducing End. Cafe Then Transfers The Isomaltosyl Residue To The Non-Reducing End Of Another Isomaltosyl Maltooligosaccharide,To Form An Alpha-Isomaltosyl-(1-->3)-Alpha-Isomaltosyl-(1-->4)-Maltooligosaccharide,And Subsequently Catalyzes A Cyclization To Produce Cycloalternan. Thus,De And Cafe Act Synergistically To Produce Cycloalternan Directly From Maltodextrin Or Starch. (C) 2003 Elsevier Ltd. All Rights Reserved.
Doi:10.1016/S0008-6215(03)00375-6