Reference : Quantitative measurement of proteins by western blotting with Cy5-coupled secondary a...
Scientific journals : Article
Life sciences : Biochemistry, biophysics & molecular biology
http://hdl.handle.net/10993/6285
Quantitative measurement of proteins by western blotting with Cy5-coupled secondary antibodies.
English
Fradelizi, J. [> >]
Friederich, Evelyne mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Life Science Research Unit >]
Beckerle, M. C. [> >]
Golsteyn, R. M. [> >]
1999
BioTechniques
26
3
484-6, 488, 490 passim
Yes (verified by ORBilu)
International
0736-6205
UNITED STATES
[en] Amino Acid Sequence ; Animals ; Antibodies/chemistry/immunology ; Blotting, Western/methods ; Calibration ; Carbocyanines/chemistry ; Cell Extracts/chemistry ; Cell Line ; Cytoskeletal Proteins ; Glycoproteins ; Humans ; Metalloproteins/analysis/immunology ; Molecular Sequence Data ; Proteins/analysis ; Zyxin
[en] The concentration of proteins in cells is an important parameter that determines how a protein will interact with other proteins or pharmacological agents. Recent developments in Western blotting techniques have now made this a method of choice to measure protein concentration in complex solutions such as total cell extracts. We show that detection of Cy5-coupled secondary antibodies by PhosphorImager analysis produces signals that approach linearity with respect to protein concentration over a 20-fold range. We used this technique to estimate cellular levels of zyxin, which is an important protein component of the actin cytoskeleton in mammalian cells. By producing specific protein standards based on sequences that are available from public databases, it is now possible to estimate the concentration of almost any protein by this technique.
http://hdl.handle.net/10993/6285

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