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    Biochim Biophys Acta. 1994 Sep 14;1194(2):341-4.

    Anion transport function of mouse erythroid band 3 protein (AE1) does not require acylation of cysteine residue 861.

    Source

    Max Planck Institut für Biophysik, Frankfurt am Main, Germany.

    Abstract

    Cys-861 of mouse band 3 is equivalent to Cys-843 of human band 3, the only acylated cysteine residue in the anion exchanger AE1 of the red blood cell (Hamasaki et al. (1992) Progress Cell Res. 2, 65-71). Mutation of Cys-861 to serine or methionine caused no significant changes of band 3-mediated anion exchange as measured after expression of the appropriate cRNAs in Xenopus oocytes. Susceptibility to inhibition of transport by 4,4'-dinitrostilbene-2,2'-disulfonate and PCMBS was not affected. We conclude that palmitoylation is not an absolute requirement for the successful execution the anion transport function by the hydrophobic domain of band 3 in the plasma membrane.

    PMID:
    7522566
    [PubMed - indexed for MEDLINE]

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