To get access to the replication site, small non-enveloped DNA viruses have to cross the cell membrane using a limited number of capsid proteins, which also protect the viral genome in the extracellular environment.
Eva Bilkova +2 more
doaj +1 more source
Neck and capsid architecture of the robust Agrobacterium phage Milano
Large gaps exist in our understanding of how bacteriophages, the most abundant biological entities on Earth, assemble and function. The structure of the “neck” region, where the DNA-filled capsid is connected to the host-recognizing tail remains poorly ...
Ravi R. Sonani +9 more
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Three-Dimensional Localization of the Smallest Capsid Protein in the Human Cytomegalovirus Capsid [PDF]
ABSTRACT The smallest capsid proteins (SCPs) of the human herpesviruses differ substantially in size and sequence and are thought to impart some unique aspects of infection to their respective viruses. We used electron cryomicroscopy and antibody labeling to show that the 8-kDa SCP of human cytomegalovirus is attached only to major capsid ...
Xuekui, Yu +6 more
openaire +2 more sources
Assessment of the cross-protective capability of recombinant capsid proteins derived from pig, rat, and avian hepatitis E viruses (HEV) against challenge with a genotype 3 HEV in pigs [PDF]
Hepatitis E virus (HEV), the causative agent of hepatitis E, is primarily transmitted via the fecal-oral route through contaminated water supplies, although many sporadic cases of hepatitis E are transmitted zoonotically via direct contact with infected ...
Meng, Xiang-Jin +5 more
core +1 more source
Entrapment of viral capsids in nuclear PML cages is an intrinsic antiviral host defense against varicella-zoster virus. [PDF]
The herpesviruses, like most other DNA viruses, replicate in the host cell nucleus. Subnuclear domains known as promyelocytic leukemia protein nuclear bodies (PML-NBs), or ND10 bodies, have been implicated in restricting early herpesviral gene expression.
Baiker Armin +28 more
core +2 more sources
Nuclear restriction of HIV-1 infection by SUN1
Overexpression of the human Sad-1-Unc-84 homology protein 2 (SUN2) blocks HIV-1 infection in a capsid-dependent manner. In agreement, we showed that overexpression of SUN1 (Sad1 and UNC-84a) also blocks HIV-1 infection in a capsid-dependent manner.
Mirjana Persaud +6 more
doaj +1 more source
Proton-Linked Dimerization of a Retroviral Capsid Protein Initiates Capsid Assembly [PDF]
In mature retroviral particles, the capsid protein (CA) forms a shell encasing the viral replication complex. Human immunodeficiency virus (HIV) CA dimerizes in solution, through its C-terminal domain (CTD), and this interaction is important for capsid assembly.
Bailey, Graham +3 more
openaire +3 more sources
Marseilleviridae is a family of giant viruses, showing a characteristic internal membrane with extrusions underneath the icosahedral vertices. However, such large objects, with a maximum diameter of 250 nm are technically difficult to examine at sub ...
Akane Chihara +6 more
doaj +1 more source
Capsid-Incorporation of Antigens into Adenovirus Capsid Proteins for a Vaccine Approach [PDF]
Some viral vectors are potent inducers of cellular and humoral responses; therefore, viral vectors can be used to vaccinate against cancer or infectious diseases. This report will focus on adenovirus (Ad)-based vectors. Traditional viral-vector vaccination embodies the concept that the vector uses the host-cell machinery to express antigens that are ...
openaire +2 more sources
Visualizing HIV-1 Capsid and Its Interactions with Antivirals and Host Factors
Understanding of the construction and function of the HIV capsid has advanced considerably in the last decade. This is due in large part to the development of more sophisticated structural techniques, particularly cryo-electron microscopy (cryoEM) and ...
Morganne Wilbourne, Peijun Zhang
doaj +1 more source

