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Qu'est-ce (qui) est avidity - définition

TYPE OF AFFINITY IN BIOCHEMISTRY

Avidity

·noun Greediness; strong appetite; eagerness; intenseness of desire; as, to eat with avidity.

avidity

n.

1.

Eagerness, longing, yearning, intense desire.

2.

Greediness, craving, voracity, voraciousness, rapacity, ravenousness, canine appetite.

avidity

¦ noun

1. keen interest or enthusiasm.

2. Biochemistry the overall strength of binding between an antibody and an antigen.

Wikipédia

Avidity

In biochemistry, avidity refers to the accumulated strength of multiple affinities of individual non-covalent binding interactions, such as between a protein receptor and its ligand, and is commonly referred to as functional affinity. Avidity differs from affinity, which describes the strength of a single interaction. However, because individual binding events increase the likelihood of occurrence of other interactions (i.e., increase the local concentration of each binding partner in proximity to the binding site), avidity should not be thought of as the mere sum of its constituent affinities but as the combined effect of all affinities participating in the biomolecular interaction. A particular important aspect relates to the phenomenon of 'avidity entropy'. Biomolecules often form heterogenous complexes or homogeneous oligomers and multimers or polymers. If clustered proteins form an organized matrix, such as the clathrin-coat, the interaction is described as a matricity.

https://en.wikipedia.org/wiki/Avidity

Exemples du corpus de texte pour avidity

1. Muslim combatants, though, have a tendency to pick theirs up and start shooting with even greater avidity.

2. While reading Marxist–Leninist books with avidity, he sympathized with the socialist idea advocated by the preceding theories and found out its limitations of the time and history.

3. "The non–functional sweet receptor provides a molecular explanation for why cats have no avidity for sweets," said Joseph Brand, a biophysicist at Cornell who worked on the study.

4. You choose.‘ " "Khalas," said 26–year–old shop owner Souheir Sahily, using an Arabic expression meaning "It‘s finished." Blonde with gold chains down to her navel, Sahily had opened a Swarovski crystal store in Verdun, a symbol of the avidity with which traditionally pleasure–minded Lebanese have sought the finer things in life after their 1'75–'0 civil war.

5. It was the second item on the BBC‘s evening television news bulletin, having been trailed in the headlines with the promise of "exclusive pictures". There was a BBC reporter outside the hospital he‘d left, another outside the hospital that was his destination, a third at the place where he walked – for a few seconds – from an ambulance to the helicopter (and was briefly spotted, in the middle distance, in those exclusive pictures). In the days before that, the BBC and newspapers (mainly, but not only, the tabloids) had followed his progress with an avidity that would usually be accorded only to major royals and a few national figures.