capsid


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capsid

 [kap´sid]
the shell of protein that protects the nucleic acid of a virus; it is composed of structural units, or capsomers. According to the number of subunits possessed by capsomers, they are called dimers (2), trimers (3), pentamers (5), or hexamers (6).

cap·sid

(kap'sid),
Protein coat of a virus. See: virion.

capsid

/cap·sid/ (kap´sid) the shell of protein that protects the nucleic acid of a virus; it is composed of structural units, or capsomers.

capsid

(kăp′sĭd)
n.
The protein coat that constitutes the shell of a virus particle.

capsid

[kap′sid]
Etymology: L, capsa, box
the layer of protein enveloping the genome of a virion. A capsid is composed of structural units called capsomeres. Its symmetry may be cubic or helical.

capsid

A protein coat that covers the nucleoprotein core or nucleic acid (RNA, DNA) of a free virus particle or phage, which may have icosahedral symmetry and itself be enclosed in an envelope—e.g., Togaviridae. It is composed of an integer multiple of 60 subunits, which self-assemble in a pattern typical for a particular virus.

vi·ri·on

(vī'rē-on)
The complete virus particle that is structurally intact and infectious.

capsid

The protein coat that encloses the genome of a virus.

capsid

the protein coat of a virus.

Capsid

The outer protein coat of a virus.
Mentioned in: Noroviruses

capsid

outer coat of a virus

capsid

the shell of protein that protects the nucleic acid of a virus; it is composed of individual morphological units called capsomers. For icosahedral viruses, there are two kinds of capsomers called pentamers, which occupy the 12 corner positions of the icosahedral shell, and hexamers, which occupy the face and edges. The number of hexamers varies between different viruses. The capsomers of helical viruses are composed of a single polypeptide and are also called protomers. All viruses of animals, except for poxviruses which have a complex structure, are minimally composed of a nucleocapsid which is the capsid surrounding the nucleic acid. In addition some viruses have an envelope surrounding the nucleocapsid.
References in periodicals archive ?
They first determined that several copies of Arc self-assemble into hollow virus-like capsids and stash its own genetic material, in this case mRNA, inside them.
In this study the amplification of the fragment corresponding to the viral capsid confirmed the presence of the virus at cultivation farms of the L.
While our previous work established the Ntermini of each of these proteins, recognition of VP3 by antibodies generated from the predicted sequence of this capsid protein provides further confirmation of its synthesis, genome position, and mass.
AThis could be an attack of the capsid bug which chews young leaves, giving this appearance.
Background & objective: Recombinant DNA technology allows expression of the human papillomavirus (HPV) major capsid protein (LI) in heterologous expression systems and the recombinant protein self assembles to virus-like particles (VLP).
Therefore, viruses could be inactivated by ozone acting on the protein structure of a virus capsid or on nucleic acids of viruses.
The particles found were enteroviral capsid protein 1, RNA and non-cytopathic viruses.
The enzyme (ATPase) provides energy to run the motor needed to insert DNA into the capsid, or head, of the T4 virus, which is called a bacteriophage because it infects bacteria.
Also, many viruses form icosahedral capsid structures.
The vaccine studied here consists of 40 mcg purified capsid polypeptide specific to this virus.
Partial sequencing of the viral capsid identified it as a type 1 poliovirus derived from one of the three strains in the Sabin OPV.
Every virus harbors an inner pearl of genetic material--DNA or RNA--encased within a protective protein shell called a capsid.