## Term: SBO:0000337

### Name

association constant### Definition

Equilibrium constant that measures the propensity of two objects to assemble (associate) reversibly into a larger component. The association constant is usually denoted Ka and is the inverse of the dissociation constant.

### Synonym(s)

- affinity constant
- Ka

### MathML

<math xmlns="http://www.w3.org/1998/Math/MathML"> <lambda> <bvar><ci definitionURL="http://biomodels.net/SBO/#SBO:0000338">koff</ci></bvar> <bvar><ci definitionURL="http://biomodels.net/SBO/#SBO:0000341">Kon</ci></bvar> <apply> <divide/> <ci>kon</ci> <ci>Koff</ci> </apply> </lambda> </math>

### Rendered equation

### Comment

Created on February 26 2008 by Nicolas Le Novere on the request of Samuel Kerrien.

### Parent(s)

- SBO:0000281 equilibrium constant (is a)

### Miscellaneous

Date of creation: 26 February 2008, 17:38

Date of last modification: 26 February 2008, 17:51