onr:"swepub:oai:slubar.slu.se:114266"
Sökning: onr:"swepub:oai:slubar.slu.se:114266" > NAP1L1 and NAP1L4 B...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04161naa a2200301 4500 | |
| 001 | oai:slubar.slu.se:114266 | |
| 003 | SwePub | |
| 008 | 240410s2021 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://res.slu.se/id/publ/1142662 URI |
| 024 | 7 | a https://doi.org/10.1128/JVI.00836-212 DOI |
| 040 | a (SwePub)slu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Agback, Peteru Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences4 aut0 (Swepub:slu)48657 |
| 245 | 1 0 | a NAP1L1 and NAP1L4 Binding to Hypervariable Domain of Chikungunya Virus nsP3 Protein Is Bivalent and Requires Phosphorylation |
| 264 | 1 | c 2021 |
| 264 | 1 | b American Society for Microbiology,c 2024 |
| 520 | a Chikungunya virus (CHIKV) is one of the most pathogenic members of the Alphavirus genus in the Togaviridae family. Within the last 2 decades, CHIKV has expanded its presence to both hemispheres and is currently circulating in both Old and New Worlds. Despite the severity and persistence of the arthritis it causes in humans, no approved vaccines or therapeutic means have been developed for CHIKV infection. Replication of alphaviruses, including CHIKV, is determined not only by their nonstructural proteins but also by a wide range of host factors, which are indispensable components of viral replication complexes (vRCs). Alphavirus nsP3s contain hypervariable domains (HVDs), which encode multiple motifs that drive recruitment of cell- and virus-specific host proteins into vRCs. Our previous data suggested that NAP1 family members are a group of host factors that may interact with CHIKV nsP3 HVD. In this study, we performed a detailed investigation of the NAP1 function in CHIKV replication in vertebrate cells. Our data demonstrate that (i) the NAP1-HVD interactions have strong stimulatory effects on CHIKV replication, (ii) both NAP1L1 and NAP1L4 interact with the CHIKV HVD, (iii) NAP1 family members interact with two motifs, which are located upstream and downstream of the G3BP-binding motifs of CHIKV HVD, (iv) NAP1 proteins interact only with a phosphorylated form of CHIKV HVD, and HVD phosphorylation is mediated by CK2 kinase, and (v) NAP1 and other families of host factors redundantly promote CHIKV replication and their bindings have additive stimulatory effects on viral replication.IMPORTANCE Cellular proteins play critical roles in the assembly of alphavirus replication complexes (vRCs). Their recruitment is determined by the viral nonstructural protein 3 (nsP3). This protein contains a long, disordered hypervariable domain (HVD), which encodes virus-specific combinations of short linear motifs interacting with host factors during vRC assembly. Our study defined the binding mechanism of NAP1 family members to CHIKV HVD and demonstrated a stimulatory effect of this interaction on viral replication. We show that interaction with NAP1L1 is mediated by two HVD motifs and requires phosphorylation of HVD by CK2 kinase. Based on the accumulated data, we present a map of the binding motifs of the critical host factors currently known to interact with CHIKV HVD. It can be used to manipulate cell specificity of viral replication and pathogenesis, and to develop a new generation of vaccine candidates. | |
| 650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Mikrobiologi inom det medicinska området0 (SwePub)301092 hsv//swe |
| 650 | 7 | a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Microbiology in the medical area0 (SwePub)301092 hsv//eng |
| 700 | 1 | a Agback, Tatianau Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences4 aut |
| 710 | 2 | a Sveriges lantbruksuniversitetb Institutionen för Molekylära vetenskaper4 org |
| 710 | 2 | a Sveriges lantbruksuniversitet |
| 773 | 0 | t Journal of Virologyg 95q 95x 0022-538Xx 1098-5514 |
| 856 | 4 8 | u https://res.slu.se/id/publ/114266 |
| 856 | 4 8 | u https://doi.org/10.1128/JVI.00836-21 |
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