[Recent advances and prospect on structural biology of beta-mannanase--a review].
Beta-mannanases (beta-1,4-D-mannanase, EC 3.2.1.78), as a hemicellulose hydrolase, are widely distributed in bacteria, fungi, plants and even animals. They can randomly hydrolyze the beta-1,4-mannosidic linkages in mannan and heteromannan and have great potential in the food/feed, pulp/paper, medicine, oil exploitation and detergent industries. Most beta-mannanases often display a modular organization and usually contain structurally discrete catalytic and non-catalytic modules. Catalytic domains of these enzymes share a (beta/alpha)8-barrel fold, which play important roles in substrate binding and catalysis. Carbohydrate binding modules, as the most common non-catalytic modules, fold as beta-sandwich and facilitate the targeting of these enzymes to polysaccharide. In this review, a brief introduction is given concerning structural characteristics and function of these beta-mannanase modules.
Zhao
Yueju
Y
Laboratery of Extremophiles, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China. zhaoyj@im.ac.cn
Xue
Yanfen
Y
Ma
Yanhe
Y
D000595:Amino Acid Sequence; D000818:Animals; D001426:Bacterial Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D002384:Catalysis; D005656:Fungal Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D017434:Protein Structure, Tertiary; D044902:beta-Mannosidase / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism
D001426:Bacterial Proteins; D005656:Fungal Proteins; D010940:Plant Proteins; D044902:beta-Mannosidase