EDWARD KINSMAN / SCIENCE PHOTO LIBRARY EDWARD KINSMAN / SCIENCE PHOTO LIBRARY
A researcher studies data from a 2 dimensional electrophoresis experiment. In the first dimension, proteins are resolved according to their isoelectric points. In the second dimension, proteins are separated according to their approximate molecular weight using sodium dodecyl sulfate poly acrylamide electrophoresis. This technique can provide molecular weight approximations for most proteins.
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