Bacterial tannases: classification and biochemical properties

Tannin acyl hydrolases, also known as tannases, are a group of enzymes critical for the transformation of tannins. The study of these enzymes, which initially evolved in different organisms to detoxify and/or use these plant metabolites, has nowadays become relevant in microbial enzymology research due to their relevant role in food tannin transformation. Microorganisms, particularly bacteria, are major sources of tannase. Cloning and heterologous expression of bacterial tannase genes and structural studies have been performed in the last few years. However, a systematic compilation of the information related to all recombinant tannases, their classification, and characteristics is missing. In this review, we explore the diversity of heterologously produced bacterial tannases, describing their substrate specificity and biochemical characterization. Moreover, a new classification based on sequence similarity analysis is proposed. Finally, putative tannases have been identified in silico for each group of tannases taking advantage of the use of the "tannase" distinctive features previously proposed.

Bibliographic Details

Main Authors:	Rivas, Blanca de las, Rodríguez, Héctor, Anguita, Juan, Muñoz, Rosario
Other Authors:	Ministerio de Economía, Industria y Competitividad (España)
Format:	artículo biblioteca
Language:	English
Published:	Springer Nature 2019
Subjects:	Esterase, Feruloyl esterase, Gallic acid, Hydrolyzable tannins,
Online Access:	http://hdl.handle.net/10261/203317 http://dx.doi.org/10.13039/501100010198 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780
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