α-Glucan biosynthesis and the GlgE pathway in Mycobacterium tuberculosis.

Abstract:

:It has long been reported that Mycobacterium tuberculosis is capable of synthesizing the α-glucan glycogen. However, what makes this bacterium stand out is that it coats itself in a capsule that mainly consists of a glycogen-like α-glucan. This polymer helps the pathogen evade immune responses. In 2010, the biosynthesis of α-glucans has been shown to not only involve the classical enzymes of glycogen metabolism but also a distinct GlgE pathway. Since then, this pathway has attracted attention not least in terms of the quest for new inhibitors that could be developed into new treatments for tuberculosis. Some lines of recent inquiry have shed a lot of light on to how GlgE catalyses the polymerization of α-glucan, using α-maltose 1-phosphate (M1P) as a building block and how the pathways are regulated. Nevertheless, many unanswered questions remain regarding the synthesis and role of α-glucans in mycobacteria and the numerous other bacteria that possess the GlgE pathway.

journal_name

Biochem Soc Trans

authors

Bornemann S

doi

10.1042/BST20150181

subject

Has Abstract

pub_date

2016-02-01 00:00:00

pages

68-73

issue

1

eissn

0300-5127

issn

1470-8752

pii

BST20150181

journal_volume

44

pub_type

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