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Protein analysis

Protein analysis

C001/8753

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50.3 MB (50.0 MB compressed)

5138 x 3425 pixels

43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)

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Credit

LEWIS HOUGHTON / SCIENCE PHOTO LIBRARY LEWIS HOUGHTON / SCIENCE PHOTO LIBRARY

Caption

Protein analysis. Technician using a proteomics imaging system to analyse proteins isolated by SDS polyacrylamide gel electrophoresis (SDS-PAGE). SDS-PAGE is used to analyse the protein composition of cells and tissues. A sample has SDS (sodium dodecyl sulphate) added to it, which denatures it and applies an overall negative charge. It is then placed into a gel that has an electrical current passed through it, which separates the sample's proteins based on their differences in size and charge. Photographed at Dundee University in Dundee, Scotland.

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