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High-resolution crystal structure of MltE, an outer membrane-anchored endolytic peptidoglycan lytic transglycosylase from Escherichia coli.


ABSTRACT: The crystal structure of the first endolytic peptidoglycan lytic transglycosylase MltE from Escherichia coli is reported here. The degradative activity of this enzyme initiates the process of cell wall recycling, which is an integral event in the existence of bacteria. The structure sheds light on how MltE recognizes its substrate, the cell wall peptidoglycan. It also explains the ability of this endolytic enzyme to cleave in the middle of the peptidoglycan chains. Furthermore, the structure reveals how the enzyme is sequestered on the inner leaflet of the outer membrane.

SUBMITTER: Artola-Recolons C 

PROVIDER: S-EPMC3068208 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature

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High-resolution crystal structure of MltE, an outer membrane-anchored endolytic peptidoglycan lytic transglycosylase from Escherichia coli.

Artola-Recolons Cecilia C   Carrasco-López César C   Llarrull Leticia I LI   Kumarasiri Malika M   Lastochkin Elena E   Martínez de Ilarduya Iñaki I   Meindl Kathrin K   Usón Isabel I   Mobashery Shahriar S   Hermoso Juan A JA  

Biochemistry 20110308 13


The crystal structure of the first endolytic peptidoglycan lytic transglycosylase MltE from Escherichia coli is reported here. The degradative activity of this enzyme initiates the process of cell wall recycling, which is an integral event in the existence of bacteria. The structure sheds light on how MltE recognizes its substrate, the cell wall peptidoglycan. It also explains the ability of this endolytic enzyme to cleave in the middle of the peptidoglycan chains. Furthermore, the structure rev  ...[more]

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