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(kil′ŏ-dolt″ŏn) [ kilo- + dalton],

kD, kDa

A unit of molecular mass consisting of 1000 daltons.


One thousand daltons. A dalton is the weight of a hydrogen atom. The kilodalton is the standard unit used to represent the weight of large molecules such as proteins. It is normally abbreviated to K or Kd.

kilodalton (K, kDa, kdal, kDal)

a unit of mass equal to 1000 DALTONS.
References in periodicals archive ?
The ultrasensitive sensor can track changes of just a few kilodaltons in the mass of a cantilever in real time.
United States-based La Jolla Pharmaceutical has received notice of allowance for patent application number 14/254,510 covering methods of treating chronic inflammation by intravenous administration of aqueous modified pectin solutions with molecular weights greater than 25 kilodaltons, from the US Patent and Trademark Office, it was reported on Friday.
In contrast, antigens are measured in kilodaltons, 10 to 10,000 times larger than glucose.
The team discovered that hydrolysis broke proteins down from 150-200 kilodaltons in size to about 10.
La biodisponibilidad de la nadroparina calcica se encuentra directamente relacionada con las cadenas de heparina de menos de 5 kilodaltons, segun algunos estudios, de 89 a 98%, con un area bajo la curva de 2,35 UI/ml por hora (tabla 1) [3,8].
tuberculosis-specific antigens, such as 6 kilodaltons ESAT-6 and culture filtrate protein CFP-10 of 10 kilodaltons (9,10).
CR1 molecular weight differs by approximately 30 kilodaltons (kDa), four different forms are known CR1*1 (220 kDa), CR1*2 (250 kDa), CR1*3 (190 kDa) and CR1*4 (280 kDa), arising by deletion and duplication of the complement control proteins (CCPs), mostly contained in the long homologous repeat-B (LHR-B) (13).
Induction of adipocyte complement-related protein of 30 kilodaltons by PPAR[gamma] agonists: a potential mechanism of insulin sensitization.
Como marcadores de peso molecular se uso albumina de bovino 66 kilodaltons (kDa), ovoalbumina (45 kDa), gliceraldehido-3-fosfato deshidrogenasa (36 kDa), anhidrasa carbonica (29 kDa), tripsinogeno de bovino (24 kDa), inhibidor de tripsina (20,1 kDa) y lacto albumina (14,2 kDa).
The 100K model is designed to filter out proteins of 80-100 kiloDaltons (kDa) or less.
Surprisingly, it has been disclosed that these high internal phase emulsions can be prepared using any water-soluble polymer having a molecular weight in the range of 10,000 Daltons to 130 Kilodaltons and the necessary level of surface activity.