Regulation of β-amylase synthesis: a brief overview

被引:14
|
作者
Nag, Moupriya [1 ]
Lahiri, Dibyajit [1 ]
Garai, Sayantani [1 ]
Mukherjee, Dipro [1 ]
Ray, Rina Rani [2 ]
机构
[1] Univ Engn & Management, Dept Biotechnol, Kolkata, India
[2] Maulana Abul Kalam Azad Univ Technol, Dept Biotechnol, Haringhata, W Bengal, India
关键词
Genetic; Regulation; BMY; BMY genes; Plants; Bacteria; CARBON CATABOLITE REPRESSION; ALPHA-AMYLASE; BACILLUS-SUBTILIS; CLOSTRIDIUM-THERMOSULFUROGENES; GENE-EXPRESSION; ARABIDOPSIS; BIOSYNTHESIS; INDUCTION; INSIGHTS; MALTOSE;
D O I
10.1007/s11033-021-06613-5
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
Background The major activity of beta-amylase (BMY) is the production of maltose by the hydrolytic degradation of starch. BMY is found to be produced by some plants and few microorganisms only. The industrial importance of the enzyme warrants its application in a larger scale with the help of genetic engineering, for which the regulatory mechanism is to be clearly understood. Results and Conclusion In plants, the activities of BMY are regulated by various environmental stimuli including stress of drought, cold and heat. In vascular plant, Arabidopsis sp. the enzyme is coded by nine BAM genes, whereas in most bacteria, BMY enzymes are coded by the spoII gene family. The activities of these genes are in turn controlled by various compounds. Production and inhibition of the microbial BMY is regulated by the activation and inactivation of various BAM genes. Various types of transcriptional regulators associated with the plant- BMYs regulate the production of BMY enzyme. The enhancement in the expression of such genes reflects evolutionary significance. Bacterial genes, on the other hand, as exemplified by Bacillus sp and Clostridium sp, clearly depict the importance of a single regulatory gene, the absence or mutation of which totally abolishes the BMY activity.
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页码:6503 / 6511
页数:9
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