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PDBsum entry 5oq3
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References listed in PDB file
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Key reference
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Title
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The molecular structure of the glycoside hydrolase domain of cwp19 from clostridium difficile.
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Authors
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W.J.Bradshaw,
J.M.Kirby,
A.K.Roberts,
C.C.Shone,
K.R.Acharya.
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Ref.
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FEBS J, 2017,
284,
4343-4357.
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PubMed id
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Abstract
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Clostridium difficile is a burden to healthcare systems around the world,
causing tens of thousands of deaths annually. The S-layer of the bacterium, a
layer of protein found of the surface of cells, has received a significant
amount of attention over the past two decades as a potential target to combat
the growing threat presented by C. difficile infections. The S-layer contains a
wide range of proteins, each of which possesses three cell wall-binding domains,
while many also possess a "functional" region. Here, we present the
high resolution structure of the functional region of one such protein, Cwp19
along with preliminary functional characterisation of the predicted glycoside
hydrolase. Cwp19 has a TIM barrel fold and appears to possess a high degree of
substrate selectivity. The protein also exhibits peptidoglycan hydrolase
activity, an order of magnitude slower than that of lysozyme and is the first
member of glycoside hydrolase-like family 10 to be characterised. This research
goes some way to understanding the role of Cwp19 in the S-layer of C. difficile.
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