THE CONFORMATION OF THE TRISACCHARIDE AND TETRASACCHARIDE PRODUCED IN THE HYDROLYSIS OF BARLEY GLUCAN WITH THE ENZYME ENDO-1,3-1,4-BETA-GLUCAN 4-GLUCANOHYDROLASE FROM BACILLUS-LICHENIFORMIS

被引：10

作者：

BERNABE, M

JIMENEZBARBERO, J

PLANAS, A

机构：

[1] CSIC, INST QUIM ORGAN GEN, CARBOHIDRATOS GRP, E-28006 MADRID, SPAIN

[2] UNIV RAMON LLULL, CETS, INST QUIM SARRIA, E-08017 BARCELONA, SPAIN

来源：

JOURNAL OF CARBOHYDRATE CHEMISTRY | 1994年 / 13卷 / 05期

关键词：

D O I：

10.1080/07328309408011681

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The solution conformation of the tri- and tetrasaccharide obtained by enzymatic degradation of glucan has been analysed using molecular mechanics and dynamics calculations and nuclear magnetic resonance data. The overall shape of both compounds is fairly similar and may be described by an equilibrium formed by conformers included in the low energy regions for both glycosidic linkages. The interglycosidic torsion angles for these conformers are Phi(H)=15+/-45 degrees and Psi(H)=-20+/-30 degrees for both beta(1->4) linkages and Phi(H)=40+/-15 degrees and Psi(H)=-20+/-35 degrees for the corresponding beta(1->3)-linked moiety.

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收藏

页码：799 / 817

页数：19

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