Glycosidase mechanisms

被引:438
作者
Rye, CS [1 ]
Withers, SG [1 ]
机构
[1] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1016/S1367-5931(00)00135-6
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
Insights into glycosidase mechanisms have come from X-ray crystallographic studies on complexes with substrate analogs and inhibitors, representing all the intermediate species along the reaction coordinate. Site-directed mutagenesis continues to play a significant role in understanding mechanisms, but is also proving important in generating glycosidases of modified mechanism or specificity.
引用
收藏
页码:573 / 580
页数:8
相关论文
共 62 条
[1]   Substrate specificity in glycoside hydrolase family 10 - Tyrosine 87 and Leucine 314 play a pivotal, role in discriminating between glucose and xylose binding in the proximal active site of pseudomonas cellulosa xylanase 10A [J].
Andrews, SR ;
Charnock, SJ ;
Lakey, JH ;
Davies, GJ ;
Claeyssens, M ;
Nerinckx, W ;
Underwood, M ;
Sinnott, ML ;
Warren, RAJ ;
Gilbert, HJ .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2000, 275 (30) :23027-23033
[2]   Evidence that galactanase A from Pseudomonas fluorescens subspecies cellulosa is a retaining family 53 glycosyl hydrolase in which E161 and E270 are the catalytic residues [J].
Braithwaite, KL ;
Barna, T ;
Spurway, TD ;
Charnock, SJ ;
Black, GW ;
Hughes, N ;
Lakey, JH ;
Virden, R ;
Hazlewood, GP ;
Henrissat, B ;
Gilbert, HJ .
BIOCHEMISTRY, 1997, 36 (49) :15489-15500
[3]   The crystal structures of Sinapis alba myrosinase and a covalent glycosyl-enzyme intermediate provide insights into the substrate recognition and active-site machinery of an S-glycosidase [J].
Burmeister, WP ;
Cottaz, S ;
Driguez, H ;
Iori, R ;
Palmieri, S ;
Henrissat, B .
STRUCTURE, 1997, 5 (05) :663-675
[4]   STRUCTURES AND MECHANISMS OF GLYCOSYL HYDROLASES [J].
DAVIES, G ;
HENRISSAT, B .
STRUCTURE, 1995, 3 (09) :853-859
[5]  
Davies G., 1998, COMPREHENSIVE BIOL C, P119
[6]   Snapshots along an enzymatic reaction coordinate:: Analysis of a retaining β-glycoside hydrolase [J].
Davies, GJ ;
Mackenzie, L ;
Varrot, A ;
Dauter, M ;
Brzozowski, AM ;
Schülein, M ;
Withers, SG .
BIOCHEMISTRY, 1998, 37 (34) :11707-11713
[7]   Serratia marcescens chitobiase is a retaining glycosidase utilizing substrate acetamido group participation [J].
Drouillard, S ;
Armand, S ;
Davies, GJ ;
Vorgias, CE ;
Henrissat, B .
BIOCHEMICAL JOURNAL, 1997, 328 :945-949
[8]   Enzymatic properties of the cysteinesulfinic acid derivative of the catalytic-base mutant Glu400→Cys of glucoamylase from Aspergillus awamori [J].
Fierobe, HP ;
Clarke, AJ ;
Tull, D ;
Svensson, B .
BIOCHEMISTRY, 1998, 37 (11) :3753-3759
[9]   Restoration of catalytic activity beyond wild-type level in glucoamylase from Aspergillus awamori by oxidation of the Glu400→Cys catalytic-base mutant to cysteinesulfinic acid [J].
Fierobe, HP ;
Mirgorodskaya, E ;
McGuire, KA ;
Roepstorff, P ;
Svensson, B ;
Clarke, AJ .
BIOCHEMISTRY, 1998, 37 (11) :3743-3752
[10]   Highly efficient synthesis of β(1→4)-oligo- and -polysaccharides using a mutant cellulase [J].
Fort, S ;
Boyer, V ;
Greffe, L ;
Davies, G ;
Moroz, O ;
Christiansen, L ;
Schülein, M ;
Cottaz, S ;
Driguez, H .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (23) :5429-5437