Refraction-2D

RF-2D-Bunt

Refraction-2D

novel technology


Refraction-2D™ is a novel technology for multiplex fluorescence 2D gel analysis based on irreversible binding of a new set of powerful fluorescent G-Dyes to proteins. Refraction-2D™ introduces…

  • advanced, patent pending technology
  • non-interference of fluorescence light emission
  • 100 % spot matching by bioinformatic processing
  • detection sensitivity of 0.1ng
  • high dynamic range of 4-5 orders of magnitude
2Dscheme_mass-shift

Refraction-2D

advanced technology



To avoid interference of fluorescence light emission of the dyes bound to the proteins, the G-Dyes are not matched with respect to their electrophoretic mobility. Bioinformatic processing of 2D images allows both the qualitative and quantitative detection of differentially expressed proteins and of post-translational modified proteins, respectively. Therefore, for optimal analysis of multiplex-fluorescence 2D gel electrophoresis, we recommend software suitable for horizontal spot registration (warping) like Delta2D (Decodon GmbH).

G-Dyes

Refraction-2D

protein labeling


  • easy, fast covalent protein labeling with 3 different G-Dyes
  • non-saturation labeling for protein expression quantification
  • run up to 3 protein samples in one 2D gel
  • detect each sample by its specific fluorescence label
work flow

Refraction-2D

work flow


  • (1) extract proteins
  • (2) label sample with Refraction-2D™ Labeling Kit
  • (3) combine samples
  • (4) separate protein samples by 2D gel electrophoresis
  • (5) scan 2D gels with imaging system/ bioinformatic processing
  • (6) analyze protein expression
Refraction_quant_1

Refraction_quant_2

Refraction-2D

quantification of protein expression


  • 2 samples labeled with fluorescent dyes (e.g. G-Dye 200, G-Dye 300)
  • both samples labeled with internal standard (e.g. G-Dye 100)
  • analyze protein expression by using appropriate 2D software (e.g. Delta2D/ Decodon, SameSpots/ Nonlinear Dynamics, Proteomweaver/ Bio-Rad).