POLYAMINE-PEPTIDE CONJUGATES - PROPOSED FUNCTIONS

  • 1 January 1980
    • journal article
    • research article
    • Vol. 12  (5) , 441-450
Abstract
Six polyamine-conjugated proteins were identified in human amniotic fluid. Three contained covalently bound spermine, 1 contained covalently bound spermidine and 2 contained covalently bound putrescine. All were characterized by high content of serine, glycine, glutamate and aspartate. Polyamination of proteins may participate in mechanisms for polyamine specificity in cell growth; cell surface attachment of polyamines; transport of polyamines; endocytosis and other cellular uptake processes; and signaling protein degradation.

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