Nucleocapsid (also known as Nucleocapsids): A protein-nucleic acid complex which forms part or all of a virion. It consists of a CAPSID plus enclosed nucleic acid. Depending on the virus, the nucleocapsid may correspond to a naked core or be surrounded by a membranous envelope.

NIH MeSH · D019251Anatomy

Nucleocapsid

Also known asNucleocapsids

Definition

A protein-nucleic acid complex which forms part or all of a virion. It consists of a CAPSID plus enclosed nucleic acid. Depending on the virus, the nucleocapsid may correspond to a naked core or be surrounded by a membranous envelope.

MeSH classification

  • A21.249.500

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Common questions about Nucleocapsid

What does Nucleocapsid mean in medicine?
A protein-nucleic acid complex which forms part or all of a virion. It consists of a CAPSID plus enclosed nucleic acid. Depending on the virus, the nucleocapsid may correspond to a naked core or be surrounded by a membranous envelope. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Nucleocapsid known by any other names?
Yes. Nucleocapsid is also referred to as Nucleocapsids in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Nucleocapsid sit in the medical classification?
Nucleocapsid falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A21.249.500). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Nucleocapsid?
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Source: NIH MeSH 2026 (D019251) — National Library of Medicine, public domain. View official MeSH record ↗