J 2022

Tick-borne encephalitis virus capsid protein induces translational shutoff as revealed by its structural-biological analysis

SELINGER, Martin, Radim NOVOTNY, Jakub SYS, Justin A ROBY, Hana TYKALOVA et. al.

Základní údaje

Originální název

Tick-borne encephalitis virus capsid protein induces translational shutoff as revealed by its structural-biological analysis

Autoři

SELINGER, Martin, Radim NOVOTNY, Jakub SYS, Justin A ROBY, Hana TYKALOVA, Sri Ranjani GANJI (356 Indie, domácí), Marie VANCOVA, Katerina JAKLOVA, Filip KAUFMAN, Marshall E BLOOM, Zbyněk ZDRÁHAL (203 Česká republika, garant, domácí), Libor GRUBHOFFER, Jade K FORWOOD, Richard HRABAL, Michaela RUMLOVA a Jan STERBA

Vydání

JOURNAL OF BIOLOGICAL CHEMISTRY, ELSEVIER, 2022, 1083-351X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10608 Biochemistry and molecular biology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.800

Kód RIV

RIV/00216224:14740/22:00128827

Organizační jednotka

Středoevropský technologický institut

UT WoS

000917299600007

Klíčová slova anglicky

Capsid; Capsid Proteins; Encephalitis Viruses; Tick-Borne; RNA; Viral Nonstructural Proteins

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 2. 11. 2024 21:12, Ing. Martina Blahová

Anotace

V originále

Tick-borne encephalitis virus (TBEV) is the most medically relevant tick-transmitted Flavivirus in Eurasia, targeting the host central nervous system and frequently causing severe encephalitis. The primary function of its capsid protein (TBEVC) is to recruit the viral RNA and form a nucleocapsid. Additional functionality of Flavivirus capsid proteins has been documented, but further investigation is needed for TBEVC. Here, we show the first capsid protein 3D structure of a member of the tick-borne flaviviruses group. The structure of monomeric Δ16-TBEVC was determined using high-resolution multidimensional NMR spectroscopy. Based on natural in vitro TBEVC homodimerization, the dimeric interfaces were identified by hydrogen deuterium exchange mass spectrometry (MS). Although the assembly of flaviviruses occurs in endoplasmic reticulum–derived vesicles, we observed that TBEVC protein also accumulated in the nuclei and nucleoli of infected cells. In addition, the predicted bipartite nuclear localization sequence in the TBEVC C-terminal part was confirmed experimentally, and we described the interface between TBEVC bipartite nuclear localization sequence and import adapter protein importin-alpha using X-ray crystallography. Furthermore, our coimmunoprecipitation coupled with MS identification revealed 214 interaction partners of TBEVC, including viral envelope and nonstructural NS5 proteins and a wide variety of host proteins involved mainly in rRNA processing and translation initiation. Metabolic labeling experiments further confirmed that TBEVC and other flaviviral capsid proteins are able to induce translational shutoff and decrease of 18S rRNA. These findings may substantially help to design a targeted therapy against TBEV.

Návaznosti

EF16_026/0008446, projekt VaV
Název: Integrace signálu a epigenetické reprogramování pro produktivitu rostlin
LM2018140, projekt VaV
Název: e-Infrastruktura CZ (Akronym: e-INFRA CZ)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, e-Infrastruktura CZ
LX22NPO5103, projekt VaV
Název: Národní institut virologie a bakteriologie (Akronym: NIVB)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Národní institut virologie a bakteriologie, 5.1 EXCELES
90127, velká výzkumná infrastruktura
Název: CIISB II