nucleocapsid
(noun)
The core structure of a virus, consisting of nucleic acid surrounded by a coat of protein.
Examples of nucleocapsid in the following topics:
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Respiratory Syncytial Virus Infection
- N encodes the nucleocapsid protein that associates with the genomic RNA forming the nucleocapsid.
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RNA Bacteriophages
- Φ6 and its relatives have a lipid membrane around their nucleocapsid, a rare trait among bacteriophages.
- The muralytic (peptidoglycan-digesting) enzyme, P5, then digests a portion of the cell wall, and the nucleocapsid enters the cell coated with the bacterial outer membrane.
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Nature of the Virion
- Proteins associated with nucleic acid are known as nucleoproteins, and the association of viral capsid proteins with viral nucleic acid is called a nucleocapsid.
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Replication of Herpes Simplex Virus
- Here, concatemers of the viral genome are separated by cleavage and are placed into pre-formed nucleocapsids.
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General Morphology
- Proteins associated with nucleic acid are known as nucleoproteins, and the association of viral capsid proteins with viral nucleic acid is called a nucleocapsid.
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Double-Stranded DNA Viruses: Adenoviruses
- Adenoviruses are medium-sized (90–100 nm), non-enveloped, icosahedral viruses composed of a nucleocapsid and a linear, double-stranded DNA (dsDNA) genome.
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Bacterial Transduction
- If the virus replicates using "headful packaging," it attempts to fill the nucleocapsid with genetic material.
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Replication of Double-Stranded DNA Viruses of Animals
- Adenoviruses (members of the family Adenoviridae) are medium-sized (90–100 nm), nonenveloped (without an outer lipid bilayer) viruses with an icosahedral nucleocapsid containing a double stranded DNA genome.