Membrane enzymes: transformers at the interface.
@article{Brodhun2015MembraneET,
title={Membrane enzymes: transformers at the interface.},
author={Florian Brodhun and Kai Tittmann},
journal={Nature chemical biology},
year={2015},
volume={11 2},
pages={
102-3
}
}Recent studies on two enzyme classes operating at the membrane interface showcase an unanticipated degree of structural plasticity involving domain swapping and marked secondary structure reshuffling. This structural variability in topology is key to functional diversification and catalytic prowess.
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Dissecting the Structural and Chemical Determinants of the "Open-to-Closed" Motion in the Mannosyltransferase PimA from Mycobacteria.
- Chemistry, BiologyBiochemistry
- 2020
A series of chemical derivatives were analyzed to determine the structural contribution of the mannose ring in such an activation mechanism and contribute to a better understanding of the structural determinants involved in the "open-to-closed" motion not only observed in PimA but also visualized and/or predicted in other glycosyltransfeases.
Molecular Basis of Membrane Association by the Phosphatidylinositol Mannosyltransferase PimA Enzyme from Mycobacteria*
- Biology, ChemistryThe Journal of Biological Chemistry
- 2016
This work determined that PimA preferentially binds to negatively charged phosphatidyl-myo-inositol substrate and non-substrate membrane model systems through its N-terminal domain, inducing an important structural reorganization of anionic phospholipids.
Structural basis of phosphatidyl-myo-inositol mannosides biosynthesis in mycobacteria.
- Chemistry, BiologyBiochimica et biophysica acta. Molecular and cell biology of lipids
- 2017
References
SHOWING 1-9 OF 9 REFERENCES
Membrane-protein topology
- BiologyNature Reviews Molecular Cell Biology
- 2006
In the world of membrane proteins, topology defines an important halfway house between the amino-acid sequence and the fully folded three-dimensional structure. Although the concept of…
Enzymes Without Borders: Mobilizing Substrates, Delivering Products
- Biology, ChemistryScience
- 2008
This work explores the different binding strategies and chemical tricks that enzymes have developed to overcome the challenge of binding to a lipophilic substrate within the phospholipid bilayer of membranes.
Molecular Recognition and Interfacial Catalysis by the Essential Phosphatidylinositol Mannosyltransferase PimA from Mycobacteria*
- Biology, ChemistryJournal of Biological Chemistry
- 2007
A novel mode of phosphatidylinositol recognition is revealed and this association leads to enzyme activation, providing a template for the development of potential antimycobacterial compounds.
Structural basis for membrane binding and catalytic activation of the peripheral membrane enzyme pyruvate oxidase from Escherichia coli
- Biology, ChemistryProceedings of the National Academy of Sciences
- 2008
The structural data pinpoint a conformational rearrangement upon activation that exposes the autoinhibitory C terminus, thereby freeing the active site in the activated enzyme and a proteolytically activated truncation variant lacking the last 23 C-terminal residues inferred as important in membrane binding.
Marvels of enzyme catalysis at true atomic resolution: distortions, bond elongations, hidden flips, protonation states and atom identities.
- ChemistryCurrent opinion in structural biology
- 2014
A hierarchy of timescales in protein dynamics is linked to enzyme catalysis
- BiologyNature
- 2007
It is shown that pico- to nano-second timescale atomic fluctuations in hinge regions of adenylate kinase facilitate the large-scale, slower lid motions that produce a catalytically competent state.
Structural Basis for the Acyltransferase Activity of Lecithin:Retinol Acyltransferase-like Proteins*
- Biology, ChemistryThe Journal of Biological Chemistry
- 2012
A catalytic mechanism common to lecithin:retinol acyltransferase-like proteins is delineated and evidence for their alternative robust lipid-dependent acyl transferase enzymatic activity is provided.
3D domain swapping: As domains continue to swap
- BiologyProtein science : a publication of the Protein Society
- 2002
It is suggested that 3D domain swapping can occur under appropriate conditions in any protein with an unconstrained terminus and that the swapped domains are diverse in their primary and secondary structures.
Competing financial interests The authors declare no competing financial interests. np g © 2 01 5 N at ur e A m er ic a, In c. A ll rig
- Nature 450,
- 2007
