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capsid

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
cap·sid  (kpsd)
n.
The protein shell that surrounds a virus particle.

[From Latin capsa, box.]

capsid1
n
(Life Sciences & Allied Applications / Animals) any heteropterous bug of the family Miridae (formerly Capsidae), most of which feed on plant tissues, causing damage to crops
[from New Latin Capsus (genus)]

capsid2
n
(Life Sciences & Allied Applications / Biochemistry) the outer protein coat of a mature virus
[from French capside, from Latin capsa box]

capsid  (kpsd)
The protein shell that surrounds a virus particle (known as a virion). See more at virus.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.capsid - a variety of leaf bugcapsid - a variety of leaf bug                
leaf bug, plant bug - small bright-colored insect that feeds on plant juices
four-lined leaf bug, four-lined plant bug, Poecilocapsus lineatus - yellow or orange leaf bug with four black stripes down the back; widespread in central and eastern North America
lygus bug - vector of viral plant diseases
2.capsid - the outer covering of protein surrounding the nucleic acid of a virus
virion - (virology) a complete viral particle; nucleic acid and capsid (and a lipid envelope in some viruses)
protein - any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"


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During the study, they used a combination of nuclear magnetic resonance and cryoEM, which are standard structural biology tools, to see both the overall shape and the atomic details of capsid protein (CA) assembly.
HIV assembly is a two-stage process involving an intermediate immature capsid that undergoes a morphologically dramatic maturation step after budding from the CD4 cell to yield the new infectious particle (see Figure 2).
 
 
 
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