Structural model of the SARS coronavirus E channel in LMPG micelles.
Identifieur interne : 000C34 ( Main/Exploration ); précédent : 000C33; suivant : 000C35Structural model of the SARS coronavirus E channel in LMPG micelles.
Auteurs : Wahyu Surya [Singapour] ; Yan Li [Singapour] ; Jaume Torres [Singapour]Source :
- Biochimica et biophysica acta. Biomembranes [ 0005-2736 ] ; 2018.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Phosphatidylglycerols, Viral Envelope Proteins.
- chemical : Micelles.
- chemistry : SARS Virus.
- Electrophoresis, Polyacrylamide Gel, Models, Molecular, Nuclear Magnetic Resonance, Biomolecular, Protein Conformation, Structure-Activity Relationship.
Abstract
Coronaviruses (CoV) cause common colds in humans, but are also responsible for the recent Severe Acute, and Middle East, respiratory syndromes (SARS and MERS, respectively). A promising approach for prevention are live attenuated vaccines (LAVs), some of which target the envelope (E) protein, which is a small membrane protein that forms ion channels. Unfortunately, detailed structural information is still limited for SARS-CoV E, and non-existent for other CoV E proteins. Herein, we report a structural model of a SARS-CoV E construct in LMPG micelles with, for the first time, unequivocal intermolecular NOEs. The model corresponding to the detergent-embedded region is consistent with previously obtained orientational restraints obtained in lipid bilayers and in vivo escape mutants. The C-terminal domain is mostly α-helical, and extramembrane intermolecular NOEs suggest interactions that may affect the TM channel conformation.
DOI: 10.1016/j.bbamem.2018.02.017
PubMed: 29474890
Affiliations:
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Le document en format XML
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<term>SARS Virus (chemistry)</term>
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<term>Protéines de l'enveloppe virale ()</term>
<term>Relation structure-activité</term>
<term>Résonance magnétique nucléaire biomoléculaire</term>
<term>Virus du SRAS ()</term>
<term>Électrophorèse sur gel de polyacrylamide</term>
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<term>Modèles moléculaires</term>
<term>Phosphatidylglycérol</term>
<term>Protéines de l'enveloppe virale</term>
<term>Relation structure-activité</term>
<term>Résonance magnétique nucléaire biomoléculaire</term>
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<front><div type="abstract" xml:lang="en">Coronaviruses (CoV) cause common colds in humans, but are also responsible for the recent Severe Acute, and Middle East, respiratory syndromes (SARS and MERS, respectively). A promising approach for prevention are live attenuated vaccines (LAVs), some of which target the envelope (E) protein, which is a small membrane protein that forms ion channels. Unfortunately, detailed structural information is still limited for SARS-CoV E, and non-existent for other CoV E proteins. Herein, we report a structural model of a SARS-CoV E construct in LMPG micelles with, for the first time, unequivocal intermolecular NOEs. The model corresponding to the detergent-embedded region is consistent with previously obtained orientational restraints obtained in lipid bilayers and in vivo escape mutants. The C-terminal domain is mostly α-helical, and extramembrane intermolecular NOEs suggest interactions that may affect the TM channel conformation.</div>
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