Charge isoforms on 2D-PAGE?

John Proudman, GGPL, B-262 johnp at GGPL.ARSUSDA.GOV
Thu Jun 15 19:16:05 EST 1995

On: 15-Jun-95  christer.ericsson at mog.ki.se (Christer Ericsson) wrote:
>I am doing a mapping of the major Drosophila melanogaster membrane
>glycoproteins. I find what looks like charge isoforms of certain
>glycoproteins. This could be due to differential phosporylation,
>acetylation or sialylation. Is there any other cause of charge isoforms
>membrane proteins, especially due to glycosylation?
>-- Christer Ericsson, Dept. of Cell and Molecular Biology, Medical Nobel
>Institute, Karolinska Institute, S-171 77 Stockholm, Sweden.
>CUSeeMe Videoconference

Some oligosaccharides terminate in sulfate rather than sialic acid (or have 


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