A new family of plasma membrane polypeptides differentially regulated during plant development.


Two cDNAs encoding polypeptides identified in a tobacco leaf plasma membrane fraction prepared by phase partitioning were cloned. The deduced polypeptides, P16 and P17, exhibit a striking primary structure, similar to that of P19, a previously cloned plasma membrane polypeptide. Antibodies raised to the recombinant proteins were used to probe the cellular… (More)


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