| Title |
ATP and autophosphorylation driven conformational changes of HipA kinase revealed by ion mobility and crosslinking mass spectrometry
|
|---|---|
| Published in |
Analytical & Bioanalytical Chemistry, June 2016
|
| DOI | 10.1007/s00216-016-9709-3 |
| Pubmed ID | |
| Authors |
Yurong Wen, Frank Sobott, Bart Devreese |
| Abstract |
Toxin-antitoxin systems are genetic modules involved in a broad range of bacterial cellular processes including persistence, multidrug resistance and tolerance, biofilm formation, and pathogenesis. In type II toxin-antitoxin systems, both the toxin and antitoxin are proteins. In the prototypic Escherichia coli HipA-HipB module, the antitoxin HipB forms a complex with the protein kinase HipA and sequesters it in the nucleoid. HipA is then no longer able to phosphorylate glutamyl-tRNA-synthetase and this prevents the initiation of the forthcoming stringent response. Here we investigated the assembly of the Shewanella oneidensis MR-1 HipA-HipB complex using native electrospray ion mobility-mass spectrometry and chemical crosslinking combined with mass spectrometry. We revealed that the HipA autophosphorylation was accompanied by a large conformational change, and confirmed structural evidence that S. oneidensis MR-1 HipA-HipB assembly was distinct from the prototypic E. coli HipA-HipB complex. Graphical abstract Ion mobility mass spectrometry shows a two phase transition from unstructured HipA to a compact folded phosphorylated protein. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Belgium | 1 | 7% |
| Unknown | 14 | 93% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 5 | 33% |
| Professor | 3 | 20% |
| Student > Bachelor | 1 | 7% |
| Student > Master | 1 | 7% |
| Researcher | 1 | 7% |
| Other | 1 | 7% |
| Unknown | 3 | 20% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 6 | 40% |
| Biochemistry, Genetics and Molecular Biology | 3 | 20% |
| Immunology and Microbiology | 1 | 7% |
| Psychology | 1 | 7% |
| Chemistry | 1 | 7% |
| Other | 0 | 0% |
| Unknown | 3 | 20% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 22 June 2016.
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#22,759,802
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#7,542
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Outputs of similar age from Analytical & Bioanalytical Chemistry
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