Self-Assembly of Fluorescent HIV Capsid Spheres for Detection of Capsid Binders

The human immunodeficiency virus (HIV) capsid is a cone-shaped capsule formed from the viral capsid protein (CA), which is arranged into a lattice of hexamers and pentamers. The capsid comprises multiple binding interfaces for the recruitment of host proteins and macromolecules used by the virus to...

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Publié dans:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 36(2020), 13 vom: 07. Apr., Seite 3624-3632
Auteur principal: Lau, Derrick (Auteur)
Autres auteurs: Walsh, James C, Mousapasandi, Amir, Ariotti, Nicholas, Shah, Vaibhav B, Turville, Stuart, Jacques, David A, Böcking, Till
Format: Article en ligne
Langue:English
Publié: 2020
Accès à la collection:Langmuir : the ACS journal of surfaces and colloids
Sujets:Journal Article Research Support, Non-U.S. Gov't Capsid Proteins Cyclophilin A EC 5.2.1.-
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520 |a The human immunodeficiency virus (HIV) capsid is a cone-shaped capsule formed from the viral capsid protein (CA), which is arranged into a lattice of hexamers and pentamers. The capsid comprises multiple binding interfaces for the recruitment of host proteins and macromolecules used by the virus to establish infection. Here, we coassembled CA proteins engineered for pentamer cross-linking and fluorescence labeling, into spherical particles. The CA spheres, which resemble the pentamer-rich structure of the end caps of the native HIV capsid, were immobilized onto surfaces as biorecognition elements for fluorescence microscopy-based quantification of host protein binding. The capsid-binding host protein cyclophilin A (CypA) is bound to CA spheres with the same affinity as CA tubes but at a higher CypA/CA stoichiometry, suggesting that the level of recruitment of CypA to the HIV capsid is dependent on curvature 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Cyclophilin A  |2 NLM 
650 7 |a EC 5.2.1.-  |2 NLM 
700 1 |a Walsh, James C  |e verfasserin  |4 aut 
700 1 |a Mousapasandi, Amir  |e verfasserin  |4 aut 
700 1 |a Ariotti, Nicholas  |e verfasserin  |4 aut 
700 1 |a Shah, Vaibhav B  |e verfasserin  |4 aut 
700 1 |a Turville, Stuart  |e verfasserin  |4 aut 
700 1 |a Jacques, David A  |e verfasserin  |4 aut 
700 1 |a Böcking, Till  |e verfasserin  |4 aut 
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