7.8: Virus Structures - Biology LibreTexts
A virus particle consists of DNA or RNA within a protective protein coat called a capsid. The shape of the capsid may vary from one type of virus to another. The capsid is made from the proteins that are encoded by viral genes within their genome.
Virus - Wikipedia
A complete virus particle, known as a virion, consists of nucleic acid surrounded by a protective coat of protein called a capsid. These are formed from protein subunits called capsomeres. [26]: 40 Viruses can have a lipid "envelope" derived from the host cell membrane.
Structure and Classification of Viruses - Medical Microbiology
A complete virus particle is called a virion. The main function of the virion is to deliver its DNA or RNA genome into the host cell so that the genome can be expressed (transcribed and translated) by the host cell.
Introduction to viruses - Wikipedia
A virus particle, also called a virion, consists of genes made from DNA or RNA which are surrounded by a protective coat of protein called a capsid. [23] The capsid is made of many smaller, identical protein molecules called capsomers .
Virus | Definition, Structure, & Facts | Britannica
Oct 24, 2024 · A virus particle is made up of genetic material housed inside a protein shell, or capsid. The genetic material, or genome, of a virus may consist of single-stranded or double-stranded DNA or RNA and may be linear or circular in form.
Virion | Capsid, Envelope & Nucleic Acid | Britannica
Virion, an entire virus particle, consisting of an outer protein shell called a capsid and an inner core of nucleic acid (either ribonucleic or deoxyribonucleic acid—RNA or DNA). The core confers infectivity, and the capsid provides specificity to the virus.
Virus-like particle - Wikipedia
Virus-like particles (VLPs) are molecules that closely resemble viruses, but are non-infectious because they contain no viral genetic material. They can be naturally occurring or synthesized through the individual expression of viral structural proteins, which can then self assemble into the virus-like structure. [1][2][3][4] Combinations of ...
What is a virus? How do they spread? How do they make us sick?
Mar 13, 2020 · Once a person is infected with a virus, their body becomes a reservoir of virus particles which can be released in bodily fluids – such as by coughing and sneezing – or by shedding skin or in ...
Virus Particle - an overview | ScienceDirect Topics
The virus particle, or virion, consists of a protein shell, known as a capsid, surrounding a length of nucleic acid, either RNA or DNA, which carries the virus genes and is often referred to as the viral genome.
Structure and features of viruses | Britannica
Outside of a living cell, a virus is an inactive particle, but within an appropriate host cell it becomes active, capable of taking over the cell’s metabolic machinery for the production of new virus particles (virions).