Kd

Definition
noun
(biochemistry) An equilibrium constant for dissociation
(biochemistry) An abbreviation for kilodalton, also kDa
(pathology) An abbreviation for: Kawasaki disease (an inflammatory disease) and Kienböck’s disease (an avascular disease characterized by necrosis in the lunate bone of the wrist)
Supplement
In biochemistry, KD refers to the dissociation constant. It is a type of equilibrium constant that measures the propensity of the dissociation of a complex molecule into its subcomponents. It describes how tightly a ligand binds to a particular protein, or at which point the salt dissociates into its component ions. The mathematical definition of dissociation constant is as follows:
KD = <a href=”AxBy“>/ AxBy, where and B are the concentratons of A and B subunits and AxBy is the concentration of the complex AxBy.
kD may also refer to the symbol used for unit, kilodalton (also, kDa). One kilodalton is equivalent to 1,000 daltons. Dalton is a measure of the weight of a hydrogen atom.
KD is also the abbreviation for certain diseases. Kawasaki disease, for instance, is abbreviated as KD. It is an inflammatory disease causing vasculitis and sometimes aneurysm in individuals suffering from it. It is characterized by inflamed blood vessels throughout the body.
Kienböck’s disease, also abbreviated as KD, is a disorder of the wrist. It is characterized by an avascular necrosis in the lunate bone of the wrist.


You will also like...

"Opabinia regalis"
The Evolutionary Development of Multicellular Organisms

Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

Young plant growing from the soil.
Soils

Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

A chart depicting Mendel's Law of Dominance
Mendel’s Law & Mendelian Genetics

One of Mendel’s law of inheritance is the “law of dominance”. Read this tutorial to know more about this form of i..

Water Cycle
The Water Cycle

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

DNA - schematic
Genetic Mutations

This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

mRNA
Protein Synthesis

Part of the genetic information is devoted to the synthesis of proteins. mRNA, a type of RNA, is produced as a transcri..

Related Articles...

No related articles found

See all Related Topics